Re: [CentOS] Debugging slow apache server?

Rob Kampen wrote:

On Apr 20, 2010, at 8:28 AM, Roland RoLaNd <r_o_l_a_n_d@hotmail.com mailto:r_o_l_a_n_d@hotmail.com> wrote:

...

hello,

i'm using an apache server to host 8 virtual hosts.

even though this server is local.. 7 out of these 8 virtual hosts open extremly slow.. it takes around 10 seconds to open a page..

though the 8th (which is a completely different site) it opens fairly fast in around 1 or 2 seconds tops..

i tried tailing the error_log and i found nothing .. is there a way i could monitor wht each branch is doing and what's causing it to be so slow? any suggestion ?

Check DNS resolution for all the domains

And be sure dns lookups are turned off for the client IP in the logs (HostnameLookups off).