Basic steps to secure the server

To prevent exploits in our server, we can do some simple yet effective steps to secure our linux server. Its better late than never :)

Disable SUID
Change ssh port
Disable root login
Disable unneeded services and check open ports.
Install a good firewall
Apply TCP wrappers
Install root kit detection
Install mod_security
Disable dangerous / unused PHP functions / harden your PHP

Regularly update you packages
Disable shell access to unwanted users.
Use only command line access.
Most important use long passwords for root (preferably 14-20 digits)
It is advisable to configure a backup on a weekly basis to a remote server or our local system.

Posted in: Firewall, General, Install, Linux, Security, Server Hardening, Web Hosting