Install MS SQL Server 2025 on Linux (Ubuntu/Red Hat) Tutorial

How to install Microsoft SQL Server 2025 on Linux step by step. In this tutorial, I walk through installing SQL Server 2025 (17.x) on Ubuntu and Red Hat Enterprise Linux, configuring the instance, installing the command-line tools, validating connectivity, adjusting firewall settings, connecting from Windows with SSMS and ODBC, and changing the default data, log, and backup locations.

This is an admin-focused walkthrough built for real-world lab and enterprise-style environments. We will cover both local and remote validation so you can move beyond “the package installed” and actually confirm the instance is reachable, working, and ready for the next phase of hardening.

You’ll learn: 🧠🛠️
• How to register Microsoft repositories and install the SQL Server 2025 engine and command-line tools
• How to safely use `sqlcmd` to create a new sysadmin login and disable the default SA account
• How to open TCP Port 1433 through local Linux firewalls (`ufw` and `firewalld`)
• How to connect to your Linux database remotely via Windows using SSMS and ODBC
• How to change the default data, transaction log, and backup directory locations using `mssql-conf`

Target Audience: Consumers / Prosumers / IT Pros / Sysadmins / Students / Cloud engineers
Skill Level: Beginner / Intermediate / Advanced
Applies to:
✅ Ubuntu 22.04
✅ Ubuntu 24.04
✅ Red Hat Enterprise Linux 9
✅ Red Hat Enterprise Linux 10
✅ SQL Server 2025 (17.x)
Hashtags:
#SQLServer #SQLServer2025 #Linux #Ubuntu #RHEL #RedHat #SSMS #ODBC #DatabaseAdministration #Sysadmin
Commands and Scripts GitHub:
https://github.com/DariensTips/Install-MS-SQL-Server-2025-on-Linux-Ubuntu-Red-Hat-Tutorial/
https://github.com/DariensTips/Install-MS-SQL-Server-2025-on-Linux-Ubuntu-Red-Hat-Tutorial/blob/main/MSSQL_on_Linux_Subtitles_BASH_install-sql-server-2025-linux.sh
Chapters:
00:00 Introduction
00:54 Environment
01:33 Online Installation, Ubuntu
02:39 Online Installation, Red Hat
03:36 First Run Setup Configuration
04:13 Connect Locally and Disable SA Login
05:34 Check and Configure Local Firewall
06:53 Connect Remotely via SQL Server Management Studio (SSMS)
08:36 Connect Remotely via ODBC
09:26 Change Default Data, Log, and Backup Directories
10:54 Links & Resources
11:27 Thank you for watching
Links & Resources:
https://learn.microsoft.com/en-us/sql/linux/quickstart-install-connect-ubuntu
https://learn.microsoft.com/en-us/sql/linux/quickstart-install-connect-red-hat
https://learn.microsoft.com/en-us/sql/linux/sql-server-linux-setup
https://learn.microsoft.com/en-us/sql/t-sql/statements/alter-login-transact-sql
https://packages.microsoft.com/
https://packages.microsoft.com/ubuntu/24.04/mssql-server-2025/pool/main/m/mssql-server/
https://www.redhat.com/en/blog/announcing-general-availability-sql-server-2025-red-hat-enterprise-linux-10
Glossary:
SQL = Structured Query Language
RHEL = Red Hat Enterprise Linux
SSMS = SQL Server Management Studio
TLS = Transport Layer Security
ODBC = Open Database Connectivity
FTS = Full-Text Search
GPG = GNU Privacy Guard
SSH = Secure Shell
AD = Active Directory
IPv6 = Internet Protocol Version 6
Related videos and Playlists:
https://www.youtube.com/watch?v=szw4cMSCPW4&list=PLLmyrX1SggDCVnXRfxnw8fDm54UcZ16QR
https://youtu.be/kipCxa9c2ZM
Disclaimer:
Always verify distribution support, package versions, licensing, certificate configuration, authentication requirements, firewall policy, and storage design against your own environment and change-management standards before deploying to production.
Attribution:
Creme Brulee - The Soundlings (YouTube Audio Library)

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