[lug] sendmail startup

Nate Duehr nate at natetech.com
Thu Nov 1 16:21:26 MST 2001


Nevermind...

host_lookup=

instead of 
#host_lookup=

because the default is to do...
host_lookup=*

:-)

Nate

On Wed, Oct 31, 2001 at 06:57:50PM -0700, Nate Duehr wrote:
> Actually been wondering how to turn this feature off in exim also, if
> anyone knows how... doesn't hurt anything, it's just annoying sometimes.
> 
> On Wed, Oct 31, 2001 at 10:10:50AM -0500, Hugh Brown wrote:
> > I asked before looking.  Maybe this will be of some use to everyone.
> > 
> > It turns out that sendmail in RH defaults to do ident lookups.  If you are
> > hitting a mail server from behind a firewall that just drops the packets,
> > you have to wait for it to timeout.  So you can reconfigure your firewall
> > to reject identd packets or you can be lazy and put 
> > 
> > 
> > define(`confTO_IDENT', 0s)
> > 
> > in your sendmail.mc file pass it through m4 and it stops doing ident
> > lookups.
> > 
> > Chagrined at answering his own post,
> > 
> > Hugh
> > 
> > "rm at fabula.de"
> > > 
> > > On Wed, Oct 31, 2001 at 09:43:02AM -0500, Hugh Brown wrote:
> > > > I have a mail server that starts up rather slowly (on the order of 20-30
> > > > seconds).  Any ideas on why it would take so long?  It is on a high speed
> > > > connection on both ends.
> > > > 
> > > Hmmm, that sounds like it _could_ be a name resolution problem.
> > > You could try to do a packed dump with tcpdump or ethereal and observe
> > > the DNS traffic.
> > > Just a quick guess.
> > > 
> > >  Ralf Mattes
> > _______________________________________________
> > Web Page:  http://lug.boulder.co.us
> > Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
> 
> -- 
> Nate Duehr <nate at natetech.com>
> 
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> _______________________________________________
> Web Page:  http://lug.boulder.co.us
> Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug

-- 
Nate Duehr <nate at natetech.com>

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