SQL Server ON Linux - Techyaz.com

How to Change Putty Background Color?

Manvendra Deo Singh — Tue, 26 Dec 2017 10:45:49 +0000

If you want to change putty background color from black to white or any color as per your choice then you should keep reading this article. If you are working for several customers, you can configure distinct colors for their servers based on customer names.

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Change Putty Background Color

Please follow below instructions to change background color of your putty console.

1- You can see background color in my putty console is showing as black, now I want to change it to white background. Right click on the top border of putty console and choose “Change Settings…”

2- You will get below settings window. Now click on Colours tab from left side pane and now we need to select an option for which we must change the color. As we have to change putty background color so we will select Default background from right side pane. Click on Modify button to select white color as putty background color. You can choose putty background color as per your choice.

Colours->Default background->Modify

3- Once you click on modify button, you will get custom colors window to choose appropriate color as background in putty console. I have selected white color as shown in below screenshot. Click on Ok and then on Apply button to reflect this change.

4- Once you click on apply button, you will see putty background color will be changed to white on your putty console. You can see that background color for your putty terminal console has been changed to white in below screenshot.

Change Putty Font Color

Now you can see the putty text color is showing very light and it is very difficult to read texts on above terminal console after changing the putty background color. So, your next step would be to change the putty text color or font color so that it can be visible to eyes. This step is optional and not needed if you only want to change putty background color.

I have explained step by step method to change putty text color for your putty terminal console in attached article. You just need to launch settings windows again and click on Colours tab from left side pane followed by Default Foreground option from right side pane and then click on Modify button to choose color for your text. Choose your putty text color accordingly and click on Ok button and finally click on Apply button to reflect the changes.

Now your Putty background color as well as putty text color have been changed as per your choice. I hope you like this article. Please follow our Facebook page and Twitter handle to get latest updates.

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How to Change Hostname of RedHat Linux Server

Manvendra Deo Singh — Wed, 13 Dec 2017 07:29:58 +0000

Last week we had received some requests to rename or change hostname of RedHat Linux systems. We got these requests because the hostname of these linux servers were not as per the server naming convention standard. Here, I will explain how to rename hostname of any redhat linux server. I changed hostname of RHEL servers that are hosted in my lab to show you step by step method.

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There are three methods that i will explain here to rename or change hostname of any Redhat Linux server. These three methods that we will use in this article are given below.

Edit etc/hostname.
nmcli utility.
hostnamectl utility.

Change Hostname of RedHat Linux Server by editing etc/hostname

Connect to your Redhat Linux server and check the hostname by running below command.

#Check hostname using any command.
hostname

#You can run below command as well to check the hostname.
cat /etc/hostname

We can see the hostname of this RedHat Linux server is SQLServerRHEL.localdomain. Now we will change this name to TechyazRHEL. If you want to change hostname with fully qualified name then you can write fully qualified name in below command.

#Connect to RHEL as root.
Sudo su

#Change Hostname using /etc/hostname. Make sure to write your new hostname in double quote.
echo "TechyazRHEL" > /etc/hostname

You can see when we check hostname of this linux server using hostname command, it is still showing older name SQLServerRHEL.localdomain whereas when we check using cat /etc/hostname it is showing newly changed hostname.

To reflect new host name, we need to restart service systemd-hostnamed. Once you will restart this service, the output of hostname command will also be same as new hostname as shown in above image.

#Restart service systemd-hostnamed
service systemd-hostnamed restart
 or
systemctl restart systemd-hostnamed

You can see new hostname after restarting above service in above screenshot. One thing you might notice that command prompt is still showing as older hostname i.e. root@SQLServerRHEL. This will disappear if you close this session and connect to new session. Let’s try this by launching new session, you can see new session is showing new hostname in below image.

Rename Hostname of RedHat Linux Server using nmcli

The nmcli (NetworkManager Command Line Interface) command-line utility is used for controlling Network Manager and reporting network status. nmcli is used to create, display, edit, delete, activate, and deactivate network connections, as well as control and display network device status. Here, we will use nmcli utility to change the hostname of redhat linux server.

Connect to your RedHat Linux server for which you want to change hostname. Run below commands to change hostname of your linux server.

#Connect to RedHat Linux server using root access.
sudo su

#Check existing hostname of RHEL server
hostname

#Change hostname of Redhat Linux server to techyazRHEL-nmCLI. 
#Change your new hostname in place of techyazRHEL-nmCLI.
nmcli general hostname techyazRHEL-nmCLI

#You can also check the hostname of Redhat linux server using nmcli utility.
nmcli general hostname

You can see hostname of RHEL server has been changed to techyazRHEL-nmCLI in above screenshot. Your PuTTY terminal will display new hostname once you open new session.

If new hostname is not showing after running above command then you should restart service systemd-hostnamed to reflect changes as we did in first section. You can see new hostname while launching new session in below screenshot.

Rename Hostname of RedHat Linux Server using hostnamectl

The hostnamectl tool is provided for administering the host names in use on a given system. First we will check the existing hostname of this server by running hostname command. We can also check the hostname using hostnamectl utility.

Connect to your Redhat Linux server using root and check the existing hostname.

#Connect to Linux server using root.
sudo su

#Check existing hostname.
hostname
or 
hostnamectl status

#Change hostname to techyazRHEL.
hostnamectl set-name techyazRHEL

You can check the hostname post renaming it. You can see new hostname in above image. Putty terminal will display new hostname once you open new session as shown in below image.

We can set all three kind of hostnames (Static, Pretty and Transient) using hostnamectl utility. Static name is mandatory whereas remaining two is optional. If you will not pass any hostname type in above command, same name will be set for all three hostnames. I haven’t used any hostname option in above command so all hostname options will have same name. Let’s check this in below image.

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How to Uninstall SQL Tools from RedHat Linux Server

Manvendra Deo Singh — Tue, 12 Dec 2017 06:05:53 +0000

I have described how to uninstall SQL Server 2017 running on Redhat Linux server in my last article. Here, i will explain how to remove or uninstall SQL tools (sqlcmd and bcp utilities) from red hat linux machine. Both utilities are part of SQL tools package mssql-tools so we need to remove this package mssql-tools in order to uninstall these utilities.

Read More on SQL Server Installation on RHEL

Uninstall SQL Tools on RHEL

As we know sqlcmd and bcp utilities are part of SQL tools so if you want to uninstall these utilities from red hat linux machine you need to uninstall SQL tools package mssql-tools. Follow below steps to uninstall sqlcmd utility from your redhat linux machine.

1- Connect to your RHEL server where SQL tools has been installed and running. Check whether SQL tools are installed on this machine or not by checking sqlcmd or bcp utilities. You can see RedHat Linux is recognizing sqlcmd utility that means SQL tools have been installed on this machine that needs to be uninstalled.

2- We can see sqlcmd utility in above screenshot. Now, we will uninstall SQL tools by running below command.

#Uninstall SQL tools from RHEL
sudo yum remove mssql-tools

You can see the details of SQL tools package that is going to be removed from this machine. We can see mssql-tools package is going to be removed here. Above command will ask us to type y to proceed with the uninstallation of this package mssql-tools and type N to quit this removal.

I entered y to uninstall SQL tools from this machine. This will uninstall both utilities sqlcmd and bcp. You can see SQL tools package mssql-tools has been removed from this machine post entering y in above screenshot.

3- Now, we can check sqlcmd or bcp utility again to validate this uninstallation. I typed sqlcmd as i did in first screenshot and pressed enter. Now we can see red hat linux is not recognizing sqlcmd utility, that means SQL tools have been removed from this machine.

#check sqlcmd utility post SQL tools uninstallation
sqlcmd

Here i have shown step by step process to uninstall SQL Tools sqlcmd and bcp from linux machine.

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How to Uninstall SQL Server 2017 from RedHat Linux Server

Manvendra Deo Singh — Fri, 08 Dec 2017 07:28:04 +0000

We all know how to install SQL Server 2017 on RedHat Linux. Here I will explain step by step process to uninstall SQL Server 2017 on RedHat Linux 7.3 server.

Read More on SQL Server Installation on Linux Servers

Uninstall SQL Server 2017 on RHEL

Uninstalling SQL Server 2017 that is running on Linux server is totally different process as compared to its windows based SQL Server. Follow below step by step process to uninstall SQL Server 2017 from your RHEL Linux server.

1- Connect to your RHEL server where SQL Server 2017 is running and that needs to be uninstalled from the server. Check whether SQL Server is installed on this machine or not by checking SQL Server service. You can see SQL Server is running on this server.

#Run below command to check SQL Server Service.
systemctl status mssql-server

2- Check SQL Server files along with the database files before removing SQL Server. We will validate SQL Server removal by checking these files post uninstallation.

#Check SQL Server binaries & database files
sudo ls -lrt /var/opt/mssql
sudo ls -lrt /var/opt/mssql/data

Note: Make sure to run full backup of all your databases and keep them in a safer place for future needs.

3- Now, we will uninstall SQL Server by running below command.

#Remove SQL Server from your Linux machine
sudo yum remove mssql-server

You can see details of SQL Server packages that are going to be removed from this machine. These packages are SQL Server and SQL Server Agent that are going to be removed here. Above command will ask us to type y to proceed with the uninstallation and type N to quit this uninstallation. Type y to proceed with the SQL Server removal.

You can see SQL Server and SQL Server Agent both packages have been removed from this machine.

4- Now, remove all SQL Server binaries and database files from its installed location that we checked in second screenshot by running below command.

#Remove database files and SQL binaries.
sudo rm -rf /var/opt/mssql

Here, your SQL Server has been removed from this linux machine. You can check SQL Server binaries and database files by running below commands. We can see no files in these locations because they have been removed now.

#Check database files.
sudo ls -lrt /var/opt/mssql/data

#Check SQL Server files & folders.
sudo ls -lrt /var/opt/mssql

5- Now you can check SQL Server service again by executing below command.

#Check SQL Server Service post SQL Server Removal.
systemctl status mssql-server

We can see SQL Server is not loaded this time but service is showing as active.

When you will try to restart this service, it will throw you an error that unit not found as shown in below image.

6- Now we need to reboot the server to update SQL Server service status on RHEL. I restarted this linux machine and again checked the SQL Server service. You can see this time it says service could not found.

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Install sqlcmd & bcp (SQL Tools ) on Ubuntu Server

Manvendra Deo Singh — Tue, 31 Oct 2017 11:15:52 +0000

I have described step by step process to install SQL Server 2017 on Ubuntu server in my last articles. Here I will explain how to install sqlcmd and bcp utilities that comes under SQL tools on Ubuntu server that is already running with SQL Server 2017. This article will describe the online method to install SQL tools.

SQL tools will be installed using mssql-tools package. The mssql-tools package contains two utilities:

sqlcmd: Command-line query utility.
bcp: Bulk import-export utility.

Before going ahead, we need Ubuntu server and SQL Server 2017 running on that instance. If you have no idea about installing Ubuntu server or SQL Server 2017 or creating a virtual machine where you can install Ubuntu and SQL Server then i would recommend you to read below articles.

SQL Tools Installation on Ubuntu – ONLINE Method/Using Internet

Installing any package on Ubuntu Linux is straight forward method if our server has internet connection and able to access online repositories. But it becomes painful if your Ubuntu server has no access of internet. Below is the list of articles that you can use to learn offline method of SQL Server Installations on Ubuntu and RHEL.

Before moving ahead let’s check whether SQL Server is installed or not on this machine. Run below command to check the SQL Server service.

#Check SQL Tools
sqlcmd

#Check SQL Server Service
systemctl status mssql-server

We can see SQL Server is installed and running fine on this server but SQL tools are not installed because sqlcmd is not throwing any output.

Let’s start with importing public repository GPG keys to install sqlcmd and bcp. Run below curl command to import the keys.

curl https://packages.microsoft.com/keys/microsoft.asc | sudo apt-key add -

Now we will register Microsoft Ubuntu repository by running below commands.

curl https://packages.microsoft.com/config/ubuntu/16.04/prod.list | sudo tee /etc/apt/sources.list.d/msprod.list

Next step is to update the source list by running given command.

sudo apt-get update

Once you execute above command, a series of execution will start and update all source packages.

Once above command will be executed, we will run below command to install SQL tools with required unix package.

sudo apt-get install mssql-tools unixodbc-dev

You can see mssql-tools package is installed in below image.

Now you can go ahead and use sql tools. If you are facing any issue during accessing sqlcmd utility then you need to set path environment variable using below steps. Run below command to set the path environment variables. Ubuntu will not be able to recognize sqlcmd utility unless you set the path environment variable. Ubuntu is able to recognize sqlcmd utility once we set the path environment variables.

#To make sqlcmd/bcp accessible from the bash shell for login sessions, modify your PATH in the ~/.bash_profile file
echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bash_profile

#To make sqlcmd/bcp accessible from the bash shell for interactive/non-login sessions, modify the PATH in the ~/.bashrc file
echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bashrc
source ~/.bashrc

You can see, sqlcmd is recognized by ubuntu after setting path environment variable in below image.

Now connect to SQL Server instance using sqlcmd and run a command to validate this installation. I have checked the SQL Server version installed on ubuntu server. You can see the details in below image that SQL Server 2017 is installed on this Ubuntu server. Now we have done with SQL Tools installation on Ubuntu server.

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21 Missing Features in SQL Server on Linux

Manvendra Deo Singh — Mon, 30 Oct 2017 07:24:16 +0000

In last tip, I have explained about new features introduced in SQL Server 2017. SQL Server support on Linux based operating systems is one of the new feature introduced in SQL Server 2017. Here, I will describe all those missing features from Linux based SQL Server instances but these features can be used if you are deploying your SQL Server on Windows operating system. We are expecting Microsoft will include all these features in upcoming releases of SQL Servers.

Missing Features in SQL Server on Linux

Below is the list of features that are not supported on Linux based SQL Server instances as of now in current GA release of SQL Server 2017.

1. Analysis Services
2. Reporting Services
3. R Services
4. Master Data Services
5. Data Quality Services
6. SQL Server Browser Service
7. Transactional & Merge Replication
8. FILESTREAM
9. FileTables
10. Stretch DB
11. Polybase
12. Third Party Extensions
13. XPs
14. VSS Snapshots
15. Buffer Pool Extension
16. Change Data Capture
17. Alerts
18. Distributed query with 3rd-party connections
19. Database Mirroring
20. AD Authentication for Linked Servers & Availability Groups (AGs)
21. SQL Server Integration Services (SSIS)

The mssql-server-is package (SSIS) is not supported on SUSE Linux in this release. It is currently supported on Ubuntu and on Red Hat Enterprise Linux (RHEL) only.

The following features are not supported in this release when you run SSIS packages on Linux:

o SSIS Catalog database
o Scheduled package execution by SQL Agent
o Windows Authentication
o Third-party components
o Change Data Capture (CDC)
o SSIS Scale Out
o Azure Feature Pack for SSIS
o Hadoop and HDFS support
o Microsoft Connector for SAP BW

For a list of built-in SSIS components that are not currently supported, or that are supported with limitations, see Limitations and known issues for SSIS on Linux

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Install SQL Server Agent on Ubuntu Server

Manvendra Deo Singh — Wed, 04 Oct 2017 12:59:50 +0000

I have shown how to install SQL Server 2017 on Ubuntu server that have internet access in my last article. If your Ubuntu server doesn’t have internet access then you should read attached article to install SQL Server in offline mode. Here I will show you how to install SQL Server Agent on Ubuntu server that are connected to internet.

Install SQL Server Agent on Ubuntu Linux

Let’s first check whether SQL Server Agent is installed or not on your existing server. Before installing SQL Server Agent, you must install SQL Server 2017 on your ubuntu server. If you have already installed SQL Server 2017 then you can connect to SQL Server that you have installed on Ubuntu server in SSMS.

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As we can see, SQL Server Agent or SQL Agent is disabled and none of its options are showing as enabled in below image. This is because SQL Server Agent package is not installed on that Ubuntu server.

SQL Agent Package comes with SQL Server 2017 package repository so if you have downloaded SQL Server 2017 repository, you can just run installation command to install SQL Server Agent. You can have a look at my last article where I have installed SQL Server 2017 to understand how to download Microsoft Ubuntu repositories. As we have already installed SQL Server 2017 by downloading its repositories so we can directly install SQL Server Agent here. Run below command to install SQL Server Agent package.

#Install SQL Server Agent
sudo apt-get install mssql-server-agent

You can see SQL Server Agent is installed on this machine in above screenshot and also this installation is suggesting us to restart the SQL Server service to enable SQL Server Agent. Now run below command to restart SQL Server service on this machine. You can see we have restarted SQL Server service in below image.

#Restart SQL Server Service
systemctl restart mssql-server

#Check SQL Server Service Status
systemctl status mssql-server

Now connect to SQL Server Instance in SSMS client. You can also connect to SQL Server using sqlcmd utility but we need to separately install this utility to make database connection that we will do in another article. If you are already connected to SQL Server instance in SSMS then just right click on Agent folder and click on refresh button.

You can see SQL Server Agent folder is enabled and all options are showing now in below image. Even now we can create any agent job to schedule any database tasks now.

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Install SQL Server 2017 on Ubuntu with Internet Access

Manvendra Deo Singh — Tue, 03 Oct 2017 10:24:51 +0000

We can easily install SQL Server 2017 on Ubuntu server if we have internet access to the online repositories but little painful if we don’t have internet access to the server. You can read attached article to learn how to install SQL Server on Ubuntu server where there is no internet connection. Here i will explain how to perform online installation of SQL Server on Ubuntu 16.04 Server that are connected to internet.

Before going ahead, we need Ubuntu Linux 16.04 server. If you don’t have Ubuntu server then you can create a virtual machine and install Ubuntu 16.04 Server with the help of attached articles in the link.

Install SQL Server on Ubuntu Server

Below are the steps you should follow to install SQL Server 2017 on your Ubuntu 16.04 machine that are connected to internet.

1- First step is to connect to Ubuntu Server locally or using PuTTY.

2- Once you are connected to Ubuntu server, run below command to download the public repository GPG keys:

#Download GPG Keys
curl https://packages.microsoft.com/keys/microsoft.asc | sudo apt-key add –

3- We can see curl package is not installed on this machine so first we should install curl here. Run below command to install CURL package.

#Install CURL Package.
Sudo apt install curl

Once curl will be installed, run curl command that are given in step 2 again to download the GPG keys.

4- Register the Microsoft Ubuntu Repository by running any of the below commands. First command is older one and for RC (Release Candidate) version. If you want to install SQL Server 2017 general availability version then run second command.

#Register Microsoft Ubuntu Repository for RC version
sudo add-apt-repository "$(curl https://packages.microsoft.com/config/ubuntu/16.04/mssql-server-2017.list)"

#Run this command if you are downloading GA (General Availability) Repository.
sudo curl https://packages.microsoft.com/keys/microsoft.asc \| sudo apt-key add - && sudo add-apt-repository "$(curl https://packages.microsoft.com/config/ubuntu/16.04/mssql-server-2017.list)"

We can see add-apt-repository command is not found so we will first install the required package for this command on this server.

#Install add-apt-repository package
Sudo apt-get install software-properties-common

Type y to proceed in above image. Once installed, again run command given in this step initially. Run the one given for general availability.

5- Update the repository by running below command. A series of executions will start during update process.

#Update All Packages
Sudo apt-get update

6- Install SQL Server by running below command.

#Install SQL Server 2017
Sudo apt-get install -y mssql-server

7- Install above suggested package mssql-conf to configure SQL Server 2017. This package will ask you to accept license terms and choose SQL Server edition as shown in below image.

 #Run below utility to configure SQL Server 
sudo /opt/mssql/bin/mssql-conf setup

8- Now check the SQL Server service by running below command. We can see service is running now.

#Check SQL Server service
systemctl status mssql-server

9- Now, you can connect to this instance using SSMS client from your local host or from the server where you have installed SSMS. Make sure that there should be connectivity between both servers. SQL Agent is disabled because it is not installed yet. Read this article to install SQL Server Agent on Ubuntu Server to get it enabled for Agent jobs and other agent related features.

10- If you face any issue during connectivity, you can check SQL Server port no 1433. If it is not open, run below command to enable port no 1433 and then establish the connection.

#Open port 1433
sudo ufw allow 1433

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How to Find and Change IP Address, Subnet Mask & Default Gateway of Linux Server

Manvendra Deo Singh — Tue, 12 Sep 2017 12:45:46 +0000

Sometimes we need to check the IP, Subnet mask and default gateway of our Linux machine and sometimes we need to change them as per our requirement. Here i will explain how to check and change these properties. If you want to change hostname of your Linux server, i would suggest to read attached article.

Check IP Address, Subnet Mask & Default Gateway

Launch PuTTY and connect to Linux server. Run ifconfig command.

#Check IP address and Gateway Mask
ifconfig

You will see output of this command like below screenshot.

Focus on the area which is highlighted in red colour. The IP address of this Linux server is 192.168.0.1 which is labeled as inet. You can see the subnet mask of this server which is showing 255.255.255.0 as netmask. We can also see the connection interface name of this machine that is ens33. The connection interface name will be used later in next section during changing IP addresses, subnet mask and gateway details.

Now we knew how to check the IP Address & Subnet Mask of your Linux computer. Now next step is to check the default gateway of this server. Run below command route -n to get the details of default gateway.

#Check Default Gateway
route -n

We can see the gateway IP is given in below screenshot for the same connection interface name ens33.

Change IP Address, Subnet Mask & Default Gateway

We knew how to get the IP address, subnet mask and gateway details of Linux server. Now i will explain how to change these addresses if needed. We will use same command ifconfig to change the IP address and subnet mask. Before proceeding, make sure you have interface name and new IPs. You can get interface name from ipconfig command. The connection interface name of my machine is ens33 as shown in above screenshots. Run below command to change these two values.

#Replace ens33 to your connection interface name. You can get it from ifconfig command.
sudo ifconfig ens33 192.168.209.10 netmask 255.255.255.0

We can see command executed successfully. You can validate the new IP address by running ifconfig command again. I have not changed netmask and kept same. If you want to change it please pass your netmask address.

Now we can see we have changed the IP address and netmask address for this Linux server. Next we can check the gateway address to validate what will be the impact on gateway post changing the IP address and netmask address. Run route -n again to get the details.

We can see gateway address is not set yet and the one showing on first section is not showing now. So let’s change the gateway address for this server. Run below command to change the gateway address.

#change the name of gateway address. Change the connection interface name from ens33 to your name.
sudo route add default gw 192.168.209.250 ens33

Once command will be executed successfully, you can validate this change by running route -n command again.

We can see the new gateway address in above screen. These are the commands that can be used to check and change the IP address, netmask address and gateway address.

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How to Install SQL Server Agent on Red Hat Linux Server

Manvendra Deo Singh — Mon, 04 Sep 2017 13:17:35 +0000

SQL Server Agent is very useful in automating any database activities. By default, it is not installed along with SQL Server on Linux server. You need to manually install it after installing SQL Server. Here I will explain step by step process to install SQL Server Agent on RedHat Linux 7.3 server running with internet access.

Before going ahead, we need to have a RedHat Linux server. If you have no idea about installing Linux server or creating a virtual machine where you can install Linux and SQL Server then i would recommend you to read below articles first.

If you have installed SQL Server on Red Hat Linux server, your next step should be to install SQL Server Agent on that server. Make sure you have internet access on the Linux server where we are going to install SQL Server Agent. If your server does not have internet connection then you should read attached article about installing SQL Server Agent on RedHat Linux that are running without Internet.

Install SQL Server Agent on RHEL

As this Linux machine has internet connection so let’s go ahead with Installation on Red Hat Linux server. Installation process is quite similar to the installation of SQL Server on Redhat Linux.

You don’t need to download SQL Server Agent package separately the way we did for SQL Server and SQL Tools installations.The package required to install SQL Server Agent included into SQL Server package repository configuration file.

If you have already downloaded SQL Server package repository configuration file to install SQL Server, you can skip this step and go ahead to install Agent on your server. If you don’t have SQL Server package repository configuration file or you have deleted it then you can run below command to download the package repository configuration file.

#Download Microsoft SQL Server Red Hat repository configuration file
sudo curl -o /etc/yum.repos.d/mssql-server.repo https://packages.microsoft.com/config/rhel/7/mssql-server.repo

This will download Microsoft SQL Server Package Repository Configuration File that are required to install SQL Server and SQL Server Agent.

As we have the Agent repository configuration file now, Let us first check the SQL Server in SSMS to see how SQL Server Agent working. You can see we are not able to do anything in SQL Server Agent folder.

Now our next step is to install SQL Server Agent to enable its related features. Run below command to start the installation.

#Install SQL Server Agent
sudo yum install mssql-server-agent

You cans see series of executions started to proceed with the installation in below image. It will also ask you to enter Y to proceed.

Enter Y to proceed with the installation, once you press enter it will proceed to install. Now SQL Server Agent will install on your machine.

It will also suggest you to restart SQL Server service. If you will not restart SQL Server service, installation will not be completed so next step is to restart SQL Server service on this server.

#Restart SQL Server Service
systemctl restart mssql-server

You can see SQL Server is online now. Go ahead and connect to SQL Server in SSMS as per below image.

Now you can create Agent jobs to automate database activities on your SQL Server instance.
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Installing SQL Tools on Red Hat Linux

Manvendra Deo Singh — Mon, 04 Sep 2017 13:08:56 +0000

I have shown you how to install SQL Server on Redhat Linux Server in my last article. Here I will explain step by step process to install SQL Tools on RedHat Linux 7.3 server. Installing SQL Tools will install sqlcmd and bcp utilities on this RHEL server.

If you have installed SQL Server on Red Hat Linux server, you need to install SQL Tools to make database connection locally on the server. Make sure you have internet access on the Linux server where we are going to install SQL Tools. If your server does not have internet connection then you should read attached article about installing SQL Tools on RedHat Linux that are running without Internet.

Install SQL Tools on RHEL

As this Linux machine has internet connection so installing SQL Tools on this Linux machine will be quite easy. Let’s go ahead with the SQL Tools Installation on Red Hat Linux server that are connected to internet. Installation process is quite similar to the installation of SQL Server on Redhat Linux.

Let us first check the SQL Server service to make sure SQL Server is installed on this machine. Run below command to check the service.

#Check SQL Server Services
systemctl status mssql-server

We can see SQL Server is installed on this machine. Now check SQL Tools are installed on this machine or not by running sqlcmd utility. We can see this tool is not installed yet.

Now we will download the Microsoft SQL Tools Redhat repository configuration file by running below command to start the SQL Tools installation.

#Download Microsoft Red Hat repository configuration file
sudo curl -o /etc/yum.repos.d/msprod.repo https://packages.microsoft.com/config/rhel/7/prod.repo

You can see file is downloaded to the given folder location. You can see this in below screenshot.

Run below commands to install SQL Tools along with unixODBC package on this server. We need to install unixODBC because of dependency issue. First update all packages by running below command.

#Run package update.
sudo yum update

Once package update will complete. Run below command to install SQL Tools. Once you execute below command, a series of execution will start and show you the details of package that are going to install.

#Install SQL Tools.
sudo yum install -y mssql-tools unixODBC-devel

After series of execution, setup will ask you to accept the license terms. Type YES to accept the license terms.

I pressed enter button post accepting the license terms, again a series of execution started and SQL tools installation was completed within minutes.

Once SQL Tools will install, you can go ahead and check sqlcmd utility. If your Linux server is not able to recognize SQL Server Tools utilities sqlcmd or bcp we need to set path environment variables. Although, it is optional step but you should run below commands to add /opt/mssql-tools/bin/ to your PATH environment variable.

#Add /opt/mssql-tools/bin/ to your PATH environment variable.
echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bash_profile
echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bashrc
source ~/.bashrc

Let us see whether Linux is able to recognize SQL Tool or not in below screenshot. We can see now sqlcmd is throwing output.

Now you can go ahead and connect to your SQL Server instance locally by using sqlcmd tool. You can see i have connected to SQL Server Instance using sqlcmd in below screen.

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How to Install SQL Server on Redhat Linux

Manvendra Deo Singh — Mon, 04 Sep 2017 12:58:42 +0000

Earlier SQL Server used to run only on Windows platform till SQL Server 2016 version. Now we can host our applications on Linux based SQL Server Instances. Here I will explain step by step process to install SQL Server on RedHat Linux 7.3 server.

Prerequisites

Below are the prerequisites that needs to have on your virtual machine in order to install SQL Server 2017.

A Red Hat Linux Machine having Internet Connection
RAM – 3.25GB
Disk Space – 6GB
Processor speed – 2 GHz
Processor cores – 2 cores
Processor type – x64

Install SQL Server 2017 on RHEL

Installing SQL Server 2017 on Redhat Linux is straight forward method if your server has internet connection and able to access online repositories. But if your Red Hat Linux machine does not have internet connection you can go with attached article Offline Installation of SQL Server 2017 on Red Hat Linux. Let us go with the SQL Server Installation on Redhat Linux server that have internet connection.

Connect to RHEL server locally or through PuTTY. Check whether SQL Server is previously installed on this machine by someone else or not. You can see SQL Server is not installed, we can see it by checking the SQL Server service. Now download the Microsoft SQL Server Redhat repository configuration file by running below curl command.

#Download Microsoft SQL Server Redhat repository configuration file
sudo curl -o /etc/yum.repos.d/mssql-server.repo https://packages.microsoft.com/config/rhel/7/mssql-server.repo

Next step is to install SQL Server on Linux machine. Run below command to update all package repository on Red Hat Linux server.

#Update Packages
sudo yum update

#Install SQL Server
sudo yum install -y mssql-server

I ran installation command which is showing in below image. A series of execution will start followed by checking the dependencies. If you will face any dependency issue, you should first resolve all missing dependencies then proceed with the installation. Setup will process and show you details of the packages which will be installing. You can see the details in below image.

SQL Server package is in downloading process. Once download will complete, installation process will start. This will take few minutes to install the package.

Now you can see SQL Server database engine is installed on this Redhat Linux server. Installation is not completed yet because setup suggests us to run mssql-conf utility to complete the installation. So next step is to run this process.

Setup is suggesting us to install a mssql-conf utility to accept the license terms and set the sa password. Run below command to configure SQL Server.

sudo /opt/mssql/bin/mssql-conf setup

This execution will ask us to accept the License terms, select the SQL Server edition and also tell us to set the sa password. Let us do that to complete this installation. Once you execute above command, it will ask as to enter YES to access the license terms. Type YES and press enter. Once you press enter post accepting license terms, setup will give you options to choose SQL Server edition. Select correct edition as per your requirement.

Once you choose SQL Server edition, it will ask you to set sa login password. The moment you set the sa password, SQL Server configuration will be completed and ready to use.

Now SQL Server is installed, but sometimes you may face issue connecting to your SQL Server instance. You need to run below commands to open the SQL Server port on the firewall on the Linux server.

#Open Firewall for SQL Server
sudo firewall-cmd --zone=public --add-port=1433/tcp --permanent
sudo firewall-cmd --reload

You can see above commands executed successfully. Port 1433 is already enabled on my machine. If this port is not open on your server it will display as success. Now, you can check the SQL Server service to validate this installation. Run the same command which we have run to check the SQL Server service before starting the installation.

#Check SQL Server Service
systemctl status mssql-server

Now your SQL Server is ready to use. You can connect to this instance using SSMS client tool. You can see i have connected to this instance using SSMS from my local host computer.

If you want to connect to SQL Server on this server only. You need to connect using sqlcmd utility. By default, sqlcmd tool does not install on Linux machine. We need to manually install it. Please visit this attached article to understand step by step process of installing SQL Tools on a Red Hat Linux Server. If you don’t have internet access you can follow another article to install SQL Tools on Redhat Linux server in Offline mode.

If your Linux virtual machine doesn’t have Internet connection, you should read:

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How to Install SQL Server Agent on Ubuntu Server without Internet – Offline Installation

Manvendra Deo Singh — Wed, 23 Aug 2017 11:18:40 +0000

SQL Server Agent runs scheduled SQL Server jobs and is very useful to automate database tasks. Here i will show you how to install SQL Server Agent on Ubuntu Linux server. We will use offline method to install SQL Server Agent because our Ubuntu server is running without an internet connection. Installing SQL Server Agent on Ubuntu server that has internet connection is quite easy method. Have a look at the attached article to understand the steps.

Before going ahead, we need a SQL Server Instance running on Ubuntu Linux Server. If you have no idea about installing Ubuntu server or SQL Server 2017 or creating a virtual machine where you can install Ubuntu/RHEL and SQL Server then i would recommend you to read below articles.

Offline Installation of SQL Server Agent on Ubuntu

It is time consuming to install anything if your Ubuntu server has no access of internet. We generally call such installations as offline installation. Microsoft suggests below steps for offline installation of SQL Server Agent on Ubuntu server.

Download SQL Server Agent packages.
Move this downloaded package to your Ubuntu Linux Machine.
Install the copied debian package on the server.
Resolve Missing Dependencies, if you get any.

Now we will go step by step process with the screenshots that will help readers to understand whole process.

SQL Server Agent Offline Installation – Step by Step

Before moving ahead let’s check whether SQL Server Agent is installed or not on this machine. You can connect to SQL Server instance using SSMS on your local host. You can see we are able to see SQL Server Agent folder but it is grayed out and not accessible. We need to install SQL Server Agent on Ubuntu server to enable it.

You can check and verify SQL Server service by executing below command.

#Check SQL Server Service.
systemctl status mssql-server

You should proceed if SQL Server service is running fine. Next step is to start the package download and proceed with installation. Below is the image of SQL Server Agent Package which we will download to install SQL Server Agent.

Download the highlighted debian package for SQL Server Agent. You can download this package on machine or PC which is connected to the internet. Once package will be downloaded to your local PC, next step is to copy this packages to the Ubuntu Linux server that are running without internet connection. I used WinSCP tool to copy this file from machine where i have downloaded it to the Linux server. Make sure that there should be connectivity between both machine.

If you have not installed WinSCP, download it and install on your PC. Launch WinSCP tool and make a connection to Ubuntu server. There are two panes in WinSCp window. The files shows in left side pane is your local system and right side pane is your target Ubuntu server. Now we just need to drag the downloaded debian package from left side pane and drop it to right side pane to copy it to Ubuntu server. Agent file is copied now and we can see that files in both side panes.

Now we can connect to Ubuntu server and validate whether this file is copied there or not. Connect to Ubuntu server and check the files. We can see downloaded file is very much there on Ubuntu server. Now next step is to install this package. We will use the dpkg package to install it as we do for other applications on Ubuntu. Let’s install it by running below command.

#Install SQL Server Agent on Ubuntu
sudo dpkg -i mssql-server-agent_14.0.900.75-1_amd64.deb

This installation has suggested us to restart SQL Server service to complete this installation so go ahead and restart the service by executing below command.

#Restart SQL Server Service.
systemctl restart mssql-server

Now SQL Server Agent is installed on this server. Go ahead connect to this SQL Server Instance using SSMS from local host. This time you would be able to see SQL Server Agent folder enabled.

You can see SQL Server Agent is showing there. Now you can create any jobs on SQL Server to automate database activities.

Read more about SQL Server on RedHat Linux:

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Step by Step Process to Install SQL Tools on Ubuntu Server running without Internet – Offline Installation

Manvendra Deo Singh — Wed, 23 Aug 2017 10:58:15 +0000

I have described step by step process to install Ubuntu 16.04 Server and Offline installation of SQL Server 2017 on Ubuntu server in my last articles. Here I will explain step by step process to install SQL Server tools (sqlcmd and bcp) on Ubuntu server where you had already installed SQL Server 2017. This article will describe the offline method to install SQL tools. The mssql-tools package which we will install contains two utilities:

sqlcmd: Command-line query utility.
bcp: Bulk import-export utility.

Before going ahead, we need a Ubuntu server and SQL Server 2017 running on that instance. If you have no idea about installing Ubuntu server or SQL Server 2017 or creating a virtual machine where you can install Ubuntu and SQL Server then i would recommend you to read below articles.

SQL Tools Installation on Ubuntu – Offline/Without Internet

Installing any package on Ubuntu Linux is straight forward method if your server has internet connection and able to access online repositories. But it becomes painful if your Ubuntu server has no access of internet. We generally call such installations as offline installation. Microsoft suggests below steps for offline installation of SQL Server Tools on Ubuntu server.

Download all sql tools related packages. i.e msodbc & mssql-tools
Move these downloaded packages to your Ubuntu Server.
Install the copied debian packages on the server.
Resolve Missing Dependencies, if you get any.
Set the Path environment Variables for this package.

Now we will follow step by step process with the screenshots that will help readers to understand this process.

Download & Copy SQL Tools Packages to Ubuntu Server

Before moving ahead let’s check whether SQL Server is installed or not on this machine. Run below command to check the SQL Server service.

#Check SQL Server Service
systemctl status mssql-server

We can see SQL Server is installed and running fine on this server. Now you can just type sqlcmd to check sql tool is installed or not. We can see it is not installed yet. As we can see SQL Tools are not installed so next step will package download and installation of that package.

Let’s start with downloading the debian package for SQL Tools. You can download the required SQL Tools debian packages for Ubuntu from the attached link or from Microsoft Repositories. You can download these packages on a machine or PC that is connected to the internet. Below are the list of debian packages which needs to be downloaded to install sql tools.

msodbcsql_13.1.6.0-1_amd64.deb
mssql-tools_14.0.5.0-1_amd64.deb

SQL Tools package installation depends on msodbcsql package that must be installed first to avoid any dependency issue. Once package will be downloaded on your local PC, next step is to copy above downloaded packages to the Ubuntu server that are running without internet connection.

You can use any tool, application or method to copy this file from localhost to Ubuntu Linux server. I used WinSCP tool to copy this file from machine where i have downloaded the package to the Ubuntu Linux server. Make sure that there should be connectivity between both machine.

If you have not installed WinSCP yet, download and install it on your PC. Launch WinSCP tool and make a connection to Ubuntu server. I have explained about WinSCP in my last articles, you can follow it to get more details. Once you established the connection, WinSCP will look like below image.

Now we just need to drag the downloaded debian packages from left side pane and drop it to right side pane to copy it to Ubuntu Linux server. Files are copied now and we can see them in both side panes.

You can see SQL Tools packages are copied to location \home\techyaz\ in above screenshot. Now we can connect to Ubuntu server and validate whether files are copied there or not.

Connect to Ubuntu server and check the files. You can run ls -lrt to check the files. Once packages will be copied to ubuntu server, next step is to first install msodbcsql package. Run below command to start the installation.

#Install msodbcsql package
sudo dpkg -i msodbcsql_13.1.6.0-1_amd64.deb

Here we will use dpkg package management system for installation because SQL Tools are debian packages for Ubuntu servers. We can see below dependencies error while executing msodbc package. Now our next step is to fix these dependency issues and then kick off the installation again.

Resolve Dependencies

We can see msodbcsql package depends on unixODBC package so first we need to download, move and install unixODBC package on Ubuntu server.

Resolving dependencies are painful job because every package has some dependencies and you need to download and install all such packages manually if you don’t have internet connection on Ubuntu server. If your Ubuntu server has internet connection, all dependencies will be installed using online repository.

Now let’s download and move unixODBC package to Ubuntu server. We can download all required debian packages from attached link. We can see unixODBC package has been copied to the server now in below image.

Install this package now.

#Install unixODBC Package.
sudo dpkg -i unixodbc_2.3.1-4.1_amd64.deb

We can see this package has another dependency error. That means UnixODBC package is dependent on given packages i.e. libodbc1 & odbcinst1debian2.

When i downloaded libodbc1 and tried to install it, this package failed because of another dependency.

We can see the dependent package in above image. I downloaded package libltdl7 and installed on Ubuntu server. libltdl7 package got installed successfully without any dependency error.

Once libltdl7 package will be installed, next step is to install all dependencies in reverse order. Here we will install libodbc1 then unixodbc followed by msodbcsql package.

We have seen, there were two dependencies to install unixODBC package. One libodbc1 has been installed. Please perform similar exercise to install another dependency odbcinst1debian2. Once both packages will be installed, go ahead and install unixodbc in order to install msodbcsql package.

If you want to check all dependencies for these packages, you can get it by running below command.

#Check dependencies of both packages.
dpkg -I msodbcsql_13.1.6.0-1_amd64.deb | grep "Depends:"
dpkg -I mssql-tools_14.0.5.0-1_amd64.deb | grep "Depends:"

If you have internet connection on your Ubuntu server then this task will be very easy to perform. You just need to execute below command to install unixodbc package.

#Install unixodbc on Ubuntu if server is connected to Internet.
sudo apt-get -f install unixodbc

SQL Tools Installation

We have resolved all dependencies errors in above section. Now we will install SQL Tools to establish database connection to SQL Server instance from ubuntu server. Run below command to install the msodbcsql package again post resolving dependencies.

#Install msodbcsql Package
sudo dpkg -i msodbcsql_13.1.6.0-1_amd64.deb

Once you will execute above command, you will get below screen to accept the license terms. Choose Yes and press enter button to proceed.

Once you press enter, package execution will start. You can see msodbcsql package is installed successfully now.

Next we will install another package mssql-tools now. Run below command to start the installation.

#Install mssql-tools Package
sudo dpkg -i mssql-tools_14.0.5.0-1_amd64.deb

Again this package will ask you to accept the license terms just like msodbcsql package. Choose yes and press enter to proceed.

You cans see mssql-tools package is installed in below image.

Final step is to set the path environment variables. Run below command to set the path environment variables. Ubuntu will not be able to recognize sqlcmd utility unless you set the path environment variable. You can see that in below screenshot. Ubuntu is able to recognize sqlcmd utility once we set the path environment variables.

#To make sqlcmd/bcp accessible from the bash shell for login sessions, modify your PATH in the ~/.bash_profile file
echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bash_profile

#To make sqlcmd/bcp accessible from the bash shell for interactive/non-login sessions, modify the PATH in the ~/.bashrc file
echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bashrc
source ~/.bashrc

Now connect to SQL Server instance using sqlcmd and run a command to validate this installation. I have checked the SQL Server version installed on ubuntu server.

We get above details that SQL Server 2017 is installed on this Ubuntu server by executing sqlcmd utility. Now we have done with SQL Tools installation on Ubuntu server. Go ahead and connect to your Ubuntu server using SQL Tools.

Read more about SQL Server on RedHat Linux:

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How to Install SQL Server 2017 on Ubuntu Server without Internet – Offline Installation

Manvendra Deo Singh — Wed, 23 Aug 2017 10:07:48 +0000

Starting with SQL Server 2017, we can run & deploy our applications on Linux based SQL Server Instances. I have already explained step by step method to install SQL Server on Redhat Linux without any internet connection in my last article. Here I will explain step by step process to install SQL Server on Ubuntu 16.04 server that is also running without an internet connection.

We can easily install SQL Server on Ubuntu server if we have internet access to the online repositories but what if we don’t have internet access to the server. Here i will explain how to perform offline installation of SQL Server on Ubuntu 16.04 Server.

Offline Installation of SQL Server 2017 on Ubuntu Server

Installing SQL Server 2017 on Ubuntu Linux is straight forward method if your server has internet connection and able to access online repositories. But it becomes painful if your Ubuntu server has no access of internet. We generally call it offline installation. Microsoft suggests below steps for offline installation of SQL Server on Ubuntu Linux server.

Download the database engine package which you need to install.
Move this downloaded packages to your Ubuntu Machine.
Install the copied Debian package on the server.
Resolve Missing Dependencies, if you get any. This is most painful step in Offline Installation.
Complete the SQL Server Setup by running mssql-conf.

Now we will go step by step process with the screenshots that will help readers to understand this process.

Download & Move SQL Server Debian Package on the Server

Let’s start with downloading the debian package for SQL Server database engine. You can download the required debian packages from release notes or from Microsoft repositories. I downloaded database engine package from SQL Server 2017 Release Notes. You can download this package on a machine or PC which is connected to the internet. Below is the image of debian packages that can be downloaded.

Next, we need to copy above downloaded package to our Ubuntu server that doesn’t have internet connection. You can use any tool, application or method to copy this file from local host to Ubuntu server. I used WinSCP tool to copy this file from machine where i have downloaded the packge to the Ubuntu server. Make sure that there should be connectivity between both machine.

If you have not installed WinSCP, download it and install on your PC. Launch WinSCP tool and make a connection to Ubuntu server. You can see i entered all details and credentials in below image to make connection. Once you save the details, login button will enable. Click on Login button to establish connection.

It will again ask you to enter password, type the password and press enter to make connection to the Ubuntu Server.

There are two panes in WinSCp window. The files shows in left side pane is your local system and right side pane is your target Ubuntu server.

Now we just need to drag the downloaded debian package from left side pane and drop it to right side pane to copy it to Ubuntu server. You can see the copy process in below screen.

You can see debian package is copied to location \home\techyaz\ in below image. So, we can connect to Ubuntu server and validate whether file is copied there or not.

Connect to Ubuntu server. Check the package in location \home\techyaz\. We can see downloaded file is very much there on Ubuntu server. I have also validated whether SQL Server is installed on this machine previously by someone else or not by checking its service in below image. We can see SQL Server is not installed on this machine yet.


#Check the copied package.
ls -lrt

#Check SQL Server Service.
systemctl status mssql-service

Now our next step is to install this package.

#Install SQL Server debian package.
sudo dpkg -i mssql-server_versionnumber_amd64.deb

dpkg is a package manager for Debian-based systems. It can install, remove, and build packages. I ran installation command using dpkg command which is showing in below image. A series of execution will start followed by checking the dependencies. If you will face any dependency issue, you should first resolve all missing dependencies then proceed with the installation. Best way to fix missing dependencies is to download the required package, copy them to the Ubuntu server and install them if you don’t have internet connection on Ubuntu server.

Resolve Dependencies

I faced few dependency issues while installing above debian package. I ran below command to check all dependencies for this SQL Server debian package.

#Check Package Dependency for below package
dpkg -I mssql-server_versionnumber_amd64.deb

You can see the list of dependencies showing into highlighted area which needs to be installed before installing SQL Server package. It’s very easy to install all such packages into one go by executing below command if your server is connected to Internet. This will download and install all required packages from online repository.

#Install all dependencies
sudo apt-get -f install libunwind8 libnuma1 libc6 adduser libjemalloc1 libc++1 gdb debconf libcurl3 hostname openssl openssl python libgssapi-krb5-2 libsss-nss-idmap0 gawk sed

It will ask you to enter Y to proceed with the installation for all given packages in the command. You can see all such packages have been installed using online repository.

But here, we are installing SQL Server on ubuntu server into offline mode that means we don’t have access to internet on the server. In that case, we need to manually download each and every package, move them to Ubuntu server the way we moved SQL Server package and then install all of them there. This is time consuming task because every package has some other dependencies. I downloaded and installed all these packages on Ubuntu Server to proceed. There are lot of packages i installed to fix dependencies. It was not possible for me to take all screenshots so i did not attach them here.

Offline Installation

Once all dependencies have been resolved, move ahead to install SQL Server on this server. Run below command to execute the installation.

#Install SQL Server on Ubuntu
sudo dpkg -i mssql-server_versionnumber_amd64.deb

We can see SQL Server has been successfully installed on this Ubuntu server. You can see this in below image. Setup also suggests us to run another command to complete this installation. We will execute this command in next step.

Now we will run below command to set the sa password and accept the license terms for SQL Server using mssql-conf utility. mssql-conf is a Microsoft SQL Server Configuration utility that are used to configure such parameters.

#Run SQL Server Configuration
sudo /opt/mssql/bin/mssql-conf setup

This execution will ask us to accept the License terms, select the SQL Server edition and also tell us to set the sa password. Let us do that to complete this installation. Once you execute above command, it will ask us to enter YES to access the license terms. Type YES and press enter.

Once you press enter post accepting license terms, setup will give you options to choose SQL Server edition. Select correct edition as per your requirement. You can see only first three editions are free and rest of all are paid. I selected option 2 to proceed. Once you choose SQL Server edition, it will ask you to set sa login password. Make sure to enter complex password for sa and do not share it to anybody. The moment you set the sa password, SQL Server configuration will proceed to complete the configuration and will be ready to use.

Now SQL Server is installed, but sometimes you may face issue connecting to your SQL Server instance. You need to run below commands to open the SQL Server port on the firewall on the Ubuntu server if you are facing issue during remote connections.

#Enable port 1433 for remote connection
sudo ufw allow 1433

Now, you can check the SQL Server service to validate this installation. Run the same command which we have run to check the SQL Server service before starting the installation.

Now your SQL Server is ready to use. You can connect to this instance using SSMS client tool. Next step is to install SQL Tools (sqlcmd & bcp utilities) and SQL Server Agent on this server. Read below articles if you want to install SQL Tools and SQL Server Agent on Ubuntu Server.

I have connected to SQL Server installed on Ubuntu server from SSMS client. We can see SQL Server Agent is grayed out that is because SQL Server Agent is not installed yet. Read above attached articles to install SQL Server Agent on this Ubuntu Server.

Read more about SQL Server on RedHat Linux:

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