Originally posted by allending How much resources does HostnameLookups take?
Lots. Or to be more precise, very little resources, but lots of time.
Should I turn this on in apache.
No. If you really care about the reverse DNS entries of people accessing your site then do the rDNS lookups when you parse your logs.
Also, how are you running apache -
startup child ,
Im interested to know more and any info about optimizing apache. [/B]
In most cases you will get the best performance by setting startup children = max children = min children so that Apache doesn't spend time spawning new processes. (This can be a bit inefficient in terms of memory, though). Also consider placing a lightweight HTTP reverse proxy in front of apache so that slow clients can be handled more quickly. (Ie, when a 56kbps modem user requests a 1MB file, it is better to have the cache fetch the entire file and hand it back to the user slowly while that Apache process can serve other requests, rather than having an Apache process monopolized by that user for 2 minutes).