More fun with Tcpdump:
I’m trying to figure out why there are dns requests being made from my webserver. It is either:
* mod_vhost_alias
* php
Actually, it was “Allow”.
In my Apache configuration, I had allow all and deny none. I read up on the manual for the allow directive, and it turns out that it will do a reverse dns entry to find out if you have the “allow” or “none” names! So I changes all to 0.0.0.0, and remove the nones. Works awesome! No more useless dns requests!
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