How do i secure my VPS for maximum protection?

[deztiny]

Pls how do i really stay protected on VPS, and prevent back tracking to the ip from which i connected to vps ? ...  am using putty x11 forwarding and other protection measures would be appreciated.Thanks in advance

[blindfuzzy]

You'll never be fully protected.

[deltonos]

Yo allways could be tracked.

First of all: iptables (or a ncurses simple gui like arno-iptables-firewall) and... fail2ban

This must be the beginning of the hardening of a linux server

regards

[deztiny]

i do not need to be fully protected ..i just need advise to maximise my protection. thats all

[noob]

Allow what you need block everything else:
-A INPUT -s 66.66.66/32 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p udp -j DROP
-A INPUT -p tcp --syn -j DROP

[deztiny]

thanks in advance...please in what file or directory do i find these from terminal. i have root access. am kinda of newbe to linux .pls just little guide on where to find the file to edit, then i can just make liitle research on google to work out the rest..

[blindfuzzy]

thanks in advance...please in what file or directory do i find these from terminal. i have root access. am kinda of newbe to linux .pls just little guide on where to find the file to edit, then i can just make liitle research on google to work out the rest..

Those changes occur in iptables. More info can be found here: https://help.ubuntu.com/community/IptablesHowTo