Disable reverse DNS lookups

2012-03-12 Thread Lucas Zinato Carraro
I found in maillist history this thread: http://lists.andrew.cmu.edu/pipermail/info-cyrus/2010-September/033392.html This patch is already implemented in newer cyrus versions ( 2.4.X )? Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info:

Re: Disable reverse DNS lookups

2012-03-12 Thread Bron Gondwana
On Mon, Mar 12, 2012 at 03:49:30PM -0300, Lucas Zinato Carraro wrote: I found in maillist history this thread: http://lists.andrew.cmu.edu/pipermail/info-cyrus/2010-September/033392.html This patch is already implemented in newer cyrus versions ( 2.4.X )? I was looking at the bug for it

Re: Disable reverse DNS lookups

2012-03-12 Thread Pascal Gienger
Le 12/03/2012 20:01, Bron Gondwana a écrit : Yes, it looks like a great idea. The problem I had with the patch is that it only does imapd and pop3d, but there are other daemons that do reverse lookups. I think I'd like to factor out the reverse lookup into one centralised function. This

[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.Guilherme

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.

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

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

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