what is standart/optimum server requirement for vbulletin?

[basketmen]

Can someone tell me or give link to what is standart/optimum server requirement for vbulletin?

like memory_limit, max_execution_time, max_input_time, and others

i am using dedicated server now, the server always down every day now, so i need to tweak my server

[BSMedia]

These settings all depend on the server, and what all your running.

memory_limit: 32M is usually enough, try 64 if not
max_execution_time: 30
max_input_time: 30

I suggest posting over at vb.com in the server optimization request thread

[Dismounted]

Please use vBulletin.com to get suggestions on your servers configuration on the topic of general PHP/MySQL optimisation. On the vBulletin.com Server Configuration (http://www.vbulletin.com/forum/forumdisplay.php?f=14) you will get suggestions by one of our Support Professionals.