On 1/12/19 6:31 am, Alex Rousskov wrote: > On 11/29/19 11:43 AM, Amos Jeffries wrote: > >> The PTR should only need to be looked up at all if something needs to >> use the client FQDN. Usually that is logging. I suspect your build >> auto-enabled ICAP features which uses the FQDN for icap_log. > > ... but icap_log is disabled by default, even in Squid builds that have > ICAP support enabled, right? If a disabled icap_log triggers DNS > lookups, there is a Squid bug we should fix. I thought so. But something is turning on log_fqdn, there are no ACLs or logformat lines in that config. Which leaves us the default settings, of which only icap_log format uses %<A these days. > > FWIW, the easiest way to figure out what triggered the lookup could be > to start Squid in a debugger, and then, before starting the test > transaction, add a breakpoint for fqdncache_nbgethostbyaddr. Post a > stack trace from that function (when it is triggered after the > httpAccept line is logged as shown in your cache.log). Seconded. Amos _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users
