How To Install Microsoft SQL Server on CentOS 7

Install Microsoft SQL Server on CentOS 7

In this tutorial, we will show you how to install and configure Microsoft SQL Server on your CentOS 7. For those of you who didn’t know, Microsoft SQL Server is a relational database management system developed by Microsoft. As a database server, it is a software product with the primary function of storing and retrieving data as requested by other software applications which may run either on the same computer or on another computer across a network (including the Internet).

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of Microsoft SQL Server (MS SQL) on a CentOS 7 server.


  • A server running one of the following operating systems: CentOS 7.
  • It’s recommended that you use a fresh OS install to prevent any potential issues.
  • SSH access to the server (or just open Terminal if you’re on a desktop).
  • A non-root sudo user or access to the root user. We recommend acting as a non-root sudo user, however, as you can harm your system if you’re not careful when acting as the root.

Install Microsoft SQL Server on CentOS 7

Step 1. First, let’s start by ensuring your system is up-to-date.

yum clean all
yum -y update

Step 2. Installing Microsoft SQL Server.

To begin, we’ll need to add two repositories to our software sources list:

wget https://packages.microsoft.com/config/rhel/7/mssql-server.repo
wget https://packages.microsoft.com/config/rhel/7/prod.repo
mv *.repo /etc/yum.repos.d/mssql.repo

Then install the packages using yum package manager, as usual:

yum install -y mssql-server mssql-tools

Step 3. Configure MS SQL server.

Once the installation is complete, you will be reminded to run the configuration script (/opt/mssql/bin/sqlservr-setup) to accept the license terms, set the password for the SA user, and start the service.



Microsoft(R) SQL Server(R) Setup

You can abort setup at anytime by pressing Ctrl-C. Start this program
with the --help option for information about running it in unattended

The license terms for this product can be downloaded from
http://go.microsoft.com/fwlink/?LinkId=746388 and found
in /usr/share/doc/mssql-server/LICENSE.TXT.

Do you accept the license terms? If so, please type "YES": YES

Please enter a password for the system administrator (SA) account: Enter Admin Password
Please confirm the password for the system administrator (SA) account: Re Enter Admin Password

Setting system administrator (SA) account password...

Do you wish to start the SQL Server service now? [y/n]: n

You can use sqlservr-setup --start-service to start SQL Server, and
sqlservr-setup --enable-service to enable SQL Server to start at boot.

Setup completed successfully.

Finally, Start the MS SQL Service:

systemctl start mssql-server
systemctl enable mssql-server

Step 4. Configure Firewall for MS SQL.

Configure the firewall to allow 1433 port so that we can access the SQL server from external machines:

firewall-cmd --permanent --zone=public --add-port=1433/tcp
firewall-cmd --reload

Step 5. Connect to MS SQL server.

Once the installation is complete, connect to the MS SQL server using the following command:

sqlcmd -H -U sa

Congratulations! You have successfully installed Microsoft SQL Server. Thanks for using this tutorial for installing Microsoft SQL Server (MS SQL) on your CentOS 7 system. For additional help or useful information, we recommend you to check the official Microsoft SQL Server website.

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r00t is a seasoned Linux system administrator with a wealth of experience in the field. Known for his contributions to idroot.us, r00t has authored numerous tutorials and guides, helping users navigate the complexities of Linux systems. His expertise spans across various Linux distributions, including Ubuntu, CentOS, and Debian. r00t's work is characterized by his ability to simplify complex concepts, making Linux more accessible to users of all skill levels. His dedication to the Linux community and his commitment to sharing knowledge makes him a respected figure in the field.
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