Server Security – How to Protect Server from XMAS Attacks

You can protect your server from XMAS Attacks and drop incoming malformed XMAS packets by applying following rule in IPTable. Login to your server via SSH as root and run following commands: iptables -A INPUT -p tcp –tcp-flags ALL ALL -j DROP /etc/init.d/iptables save /etc/init.d/iptables restart Done!!

Server Security – How to block Null Packets on a Linux Server

For security reason, you should block all incoming null packets requests to your server. All TCP requests with flag NONE to your server should be blocked. These are generally bad bots looking for security holes on your server to exploit. This can be easily done by adding a rule in IPTable / firewall. Login to […]