Re: [PATCH] Disable reverse DNS lookups

2010-09-09 Thread Wesley Craig
Could you: 1) put this in bugzilla 2) note in the documentation that some SASL methods require hostnames Thanks, :wes On 09 Sep 2010, at 06:47, Guilherme Manika wrote: > This patch adds a "disablereverselookups" option to imapd.conf that disables > reverse DNS lookups in imapd

Re: [PATCH] Disable reverse DNS lookups

2010-09-09 Thread David Lang
On Thu, 9 Sep 2010, Guilherme Manika wrote: Oh, sure. Cyrus does a reverse DNS lookup to log the user's domain name to syslog. This adds an overhead to each incoming connection that increases the number of simultaneous connections to the system and may become devastating if there is a prob

Re: [PATCH] Disable reverse DNS lookups

2010-09-09 Thread Guilherme Manika
Oh, sure. Cyrus does a reverse DNS lookup to log the user's domain name to syslog. This adds an overhead to each incoming connection that increases the number of simultaneous connections to the system and may become devastating if there is a problem in external DNS connectivity. We added t

Re: [PATCH] Disable reverse DNS lookups

2010-09-09 Thread Jeroen van Meeuwen (Kolab Systems)
Guilherme Manika wrote: > This patch adds a "disablereverselookups" option to imapd.conf that > disables reverse DNS lookups in imapd and pop3d. > > It doesn't affect other services (lmtp, mupdate, etc.) because they are > not Internet-facing services and so do not rely on external DNS to work

[PATCH] Disable reverse DNS lookups

2010-09-09 Thread Guilherme Manika
  This patch adds a "disablereverselookups" option to imapd.conf that disables reverse DNS lookups in imapd and pop3d.  It doesn't affect other services (lmtp, mupdate, etc.) because they are not Internet-facing services and so do not rely on external DNS to work. That's probably acceptable.Guilher