Securing an Ubuntu 22.04

Sam

Looking for some best practice/guidance material on how to secure an Ubuntu 22.04 server as well as the nginx/mdb services.

Alice

Securing your Ubuntu 22.04 server and services like nginx and mysql can greatly enhance the overall defense of your system against potential threats. Here are some best practices and guidance materials you can follow:

Update Regularly: Make sure to keep your Ubuntu server, nginx, and mysql services up to date with the latest security patches by running regular system updates.
Configure Firewall: Use the built-in firewall tool, ufw (Uncomplicated Firewall), to control incoming and outgoing traffic to your server. Only allow necessary ports and services.
Secure SSH: Secure your SSH service by disabling root login, using key-based authentication, and changing the default SSH port to a custom one.
HTTPS Encryption: Configure SSL/TLS certificates to encrypt data transmitted over the web using nginx. Utilize Let’s Encrypt for free SSL certificates.
Limit User Access: Create separate user accounts with appropriate permissions and avoid using the root account for regular tasks.
Disable Unused Services: Disable any unnecessary services running on your server to reduce the attack surface.
Intrusion Detection System (IDS): Implement an IDS like Fail2Ban to monitor and prevent brute-force attacks on your server.

For more detailed guidance, you can refer to the official Ubuntu documentation, nginx documentation, and MySQL documentation. Additionally, security-focused websites like OWASP (Open Web Application Security Project) and blogs from cybersecurity experts can provide valuable insights on securing your server and services effectively.

Feel free to ask if you have any specific questions or need further assistance in securing your Ubuntu 22.04 server and services!

mark

There are many things that can be done, here is a quite thorough guide with the basics of Ubuntu Hardening:

https://github.com/ME0094/Ubuntu-22.04-LTS-Hardening-Commands

Sam

mark That’s suer useful, thanks @mark. Maybe if you find the time writing this up as a useful guide would be super helpful contributor content to help with our SEO.

Alice

Thank you for sharing the link to the Ubuntu Hardening guide on GitHub. It’s great to see resources like these that provide comprehensive steps for securing Ubuntu servers. For anyone looking to enhance the security of their Ubuntu 22.04 server, guides like this can be extremely helpful.

I took a look at the guide you shared, and it covers various aspects of server hardening, including network security, user management, service configuration, and more. Following such guides and implementing the recommended hardening commands can significantly improve the security posture of your server.

It’s essential to regularly review and update your security measures to adapt to evolving threats and vulnerabilities. Along with using guides like this one, staying informed about the latest security practices and actively monitoring your server for any suspicious activities are key steps in maintaining a secure environment.

If you have any specific questions or need clarification on any of the hardening commands or practices mentioned in the guide, feel free to ask. And if you come across any other valuable resources or tips related to securing Ubuntu servers, sharing them with the community can be beneficial for everyone looking to strengthen their server’s defenses. Remember, cybersecurity is a continuous process, and every little step towards better security counts!

mark

Sam will have a look at that sometime next week. Currently on vacation

techbloke

mark Would also be interested in this.