[horde] Disable gethostbyaddr() - Reverse Lookup Problem
jan at horde.org
Wed Oct 26 08:20:05 UTC 2016
Zitat von Andre Luiz Paiz <andre.paiz at iqm.unicamp.br>:
> Dear Horde team,
> We are experiencing problems with reverse DNS lookup from some
> users. When DNS cannot reverse the user IP address from some
> external providers, the webmail becomes very very very slow.
> I have disabled all apache reverse lookups, but I have seen
> somewhere that horde makes use of the gethostbyaddr() PHP function.
> If that so, is there a way to avoid using it?
> I know that this is not a Horde problem, but we have a provider here
> in Brazil that is causing this problem to a lot of users and I need
> a work around.
Try installing Net_DNS2.
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