On Tue, 2009-08-04 at 15:05 +0000, Mike -- EMAIL IGNORED wrote: > On Tue, 04 Aug 2009 08:22:14 +0200, André Warnier wrote: > > [...] > >> > > You could first check the obvious, such as whether in your Apache/Centos > > config, you are not *asking* the server to do these DNS lookups. Look > > here for instance : > > http://httpd.apache.org/docs/2.2/mod/mod_log_config.html#formats (I mean > > that if your are asking Apache to log the *name* of the client in the > > access log for instance, then it has to do a lookup) Any time, anywhere, > > where Apache, for whatever reason, has to translate an IP address into a > > name or vice-versa, may result in this behaviour. > > > [...] > > In LogFormat, I changed %h to %a, which hat no effect. I did "solve" > the problem by completely blocking DNS in iptables. As it happens, > in my present configuration, this is not a problem, but I would hardly > call it a satisfactory solution. Remember, the httpd.config works > without problem on a neighboring box (with a different OS). > > Mike. > I doubt they are running identical configurations then. At a pinch, I would guess that the slow one has 'HostNameLookups On' (or worse: Double). It would be impossible to help further on this without actual conf files. Tom --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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