Re: master.cf config question

13 msg	HOLD queue GUI
4 msg	Spam being sent from our mail server
3 msg	catch-all mail address
4 msg	sending mail is working but only local.
8 msg	2 postfix boxes as frontservers for MS Exchange...
3 msg	delayed delivery
2 msg	libspf2 and policyd
3 msg	Bypassing content_filter for trusted networks
8 msg	Changing UUCP-Sytsle-Adresses to Domain-Style-A...
9 msg	List of main.cf options
6 msg	'too many errors after RSET' with Outlook
2 msg	Virtual Users w/ LDAP and Authentication
3 msg	Multiple content filters?
2 msg	I don't know what to make of this
3 msg	Postfix and Dspam, point me in the right direct...
14 msg	Postfix in base FreeBSD system
4 msg	Weird 'Connection timed out while sending messa...
4 msg	rewriting and redirecting incoming address

master.cf config question
\ Gary W. Smith (24 Sep 2007)
. \ (Wietse Venema) (24 Sep 2007)
. . \ Gary W. Smith (24 Sep 2007)
. . . \ Victor Duchovni (24 Sep 2007)

7 msg	LDAP smtpd_recipient_restrictions

Subject:	Re: master.cf config question
Group:	Postfix-users
From:	Victor Duchovni
Date:	24 Sep 2007

On Sun, Sep 23, 2007 at 05:16:38PM -0700, Gary W. Smith wrote:

> > The impact is the same if they run on different ports or not.
>
> Thanks, that's all I needed to know.

Note, however that with two services, the total number of processes
running can be the sum of the process limits for each service. If the
process limit of each service is high (> ~500) and TLS is supported,
the tlsmgr(8) process may run out file descriptors, unless you are using
Postfix 2.4.x, compiled and running on a platform that supports kqueue,
epoll or devpoll.

Also if using TLS, with 2.4 and later, the server-side TLS session cache
is split by the smtpd master.cf service name, so if clients connect to a
single IP address (load balancer) and are then handed off to either of two
services on a single host, TLS session caching will work poorly, you need
to either use a single service (inet_interfaces = list of IPs) or assign
each service a different "-o myhostname=unique-per-host-and-service" value.

--
Viktor.

Disclaimer: off-list followups get on-list replies or get ignored.
Please do not ignore the "Reply-To" header.

To unsubscribe from the postfix-users list, visit
http://www.postfix.org/lists.html or click the link below:
<mailto:majordomo?body=unsubscribe%20postfix-users>

If my response solves your problem, the best way to thank me is to not
send an "it worked, thanks" follow-up. If you must respond, please put
"It worked, thanks" in the "Subject" so I can delete these quickly.