What is the best way to defend a server?
a machine gun
>>59073724
Don't hook it up to the internet
>>59073724
SELinux
>>59073724
Depends on the case. Your question is too general, so here's a general answer.
Use a firewall, use an intrusion detection system, and do some research.
competence
Fail2Ban
>>59073769
(Replying to myself)
Everyone else in this thread is wrong. IDS are the dumbest things imaginable and solve nothing. Firewalls don't limit your exposure enough.
The only real solution is SELinux or other MAC systems.
>>59073724
bulletproof vest
kill yourself sperg