Hi everyone,
I’m excited to share a guide I just published on preventing SYN flood attacks on Linux servers. After spending the past two weeks researching and testing various solutions, I’ve developed an approach that works well and is relatively simple to implement.
Here’s a quick overview of what the guide covers:
- Using firewall rules to limit the number of SYN packets to HTTP and HTTPS ports (or any port that uses TCP).
- Blocking traffic from IPs that exceed the set limit and logging these events.
Setting up Fail2ban to:
- Block offending IPs for 24 hours if they appear in the log file more than five times.
- Maintain a blacklist of persistent attackers.
https://ivansalloum.com/preventing-syn-flood-attacks-on-your-linux-server/
I believe this solution can help you secure your server from SYN flood attacks, and I’d love to hear your thoughts! If you have suggestions, additional tips, or questions about the guide, feel free to share them.
Note: There are no ads or promotional content on my website. I’m sharing this purely for educational purposes and to gather feedback.
