Pb configuring Sendmail v8 with ASE

From: Michel Jouvin <jouvin_at_lal.in2p3.fr>
Date: Thu, 14 Dec 95 12:59:39 +0100

I try to configure sendmail 8.7.3 on 2 DEC Alpha running Digital UNIX 3.2C and
Available Server (ASE) software. ASE implements service failover for disks and
applications. This is done by associating a service with a virtual host
assigned
to one system or another (according to availability). This is implemented by
declaration of "alias" addresses for a network interface (using ifconfig).

In sendmail v5, I configured MX for some hosts in our domain to point to this
virtual host (mailer.lal.in2p3.fr) which address is never the primary address
for an interface in the system. And it works perfectly (after populating w
class).

In sendmail v8, this configuration seems not to work. Every time an incoming
connection is received directed to this virtual host, sendmail tries an IP
connection to this host and detects that it loops back. The result is a
local configuration error. It looks like if sendmail is doing a check not
taking
into account all the addresses of the interface it receives the connection
through.

Here is an extract from the log file :

Dec 13 15:44:48 as3 sendmail[28709]: PAA28709: from=<mjouvin_at_lalcls.in2p3.fr>,
s
ize=3728, class=0, pri=33728, nrcpts=1, msgid=<95121315444638_at_lalcls.in2p3.fr>,
proto=SMTP, relay=axs.lal.in2p3.fr [134.158.91.25]
Dec 13 15:44:48 as3 sendmail[28704]: PAA28709: SYSERR(root):
nfsgen.lal.in2p3.fr
. config error: mail loops back to me (MX problem?)
Dec 13 15:44:48 as3 sendmail[28704]: PAA28709: to=<jouvin_at_nfsgen.lal.in2p3.fr>,
delay=00:00:01, xdelay=00:00:00, mailer=smtp, relay=nfsgen.lal.in2p3.fr.
[134.15
8.91.80], stat=Local configuration error
Dec 13 15:44:48 as3 sendmail[28704]: PAA28709: PAA28704: postmaster notify:
Loca
l configuration error

This trace corresponds to a mail received for jouvin_at_nfsgen.lal.in2p3.fr.
nfsgen
is the name of the virtual host and has no associated MX.

I tried a lot of things in the configuration file. Here is the Cw and Dw, Dj
config I tried at last. But I tried almost any possible combination of Cw, Dw
and Dj (including not defining Dw and Dj).

Cwlocalhost
Cwmailer
Cwmailer.lal.in2p3.fr.
Cwnfsgen
Cwnfsgen.lal.in2p3.fr
Cwnfsgen.lal.in2p3.fr.
Cwas3
Cwas3.lal.in2p3.fr
Cwas3.lal.in2p3.fr.
Cwlal.in2p3.fr
Cwlal.in2p3.fr.
# file containing names of hosts for which we receive email
Fw/lal/gen/mgr/sendmail/lal-mailers.cw

# my official domain name
# ... define this only if sendmail cannot automatically determine your domain
#Dj$w.Foo.COM
Dwnfsgen
Djnfsgen.lal.in2p3.fr


I read about the IPC option but it is very unclear if it can help. I didn't
try.

Thnaks in advance for any help.

Michel Jouvin
LAL / CNRS - France



>From jouvin Thu Dec 14 12:55:04 1995
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From: Michel Jouvin <jouvin>
Newsgroups: comp.unix.osf.osf1
Subject: (no subject)
Date: 14 Dec 1995 11:34:20 GMT
Organization: Centre de Calcul In2p3
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Message-ID: <4ap23s$sse_at_ccpnws.in2p3.fr>

I try to configure sendmail 8.7.3 on 2 DEC Alpha running Digital UNIX 3.2C and
Available Server (ASE) software. The idea is to use one virtual host name
associated with an existing NFS disk service as the MX target to improve mail
availability (rather than declaring several MX entries).

In sendmail v5, I configured MX for some hosts in our domain to point to this
virtual host (mailer.lal.in2p3.fr) which address is never the primary address
for an interface in the system. And it works perfectly (after populating w
class).

In sendmail v8, this configuration seems not to work. Every time an incoming
connection is received directed to this virtual host, sendmail tries an IP
connection to this host and detects that it loops back. The result is a
local configuration error. It looks like if sendmail is doing a check not
taking
into account all the addresses of the interface it receives the connection
through.

Here is an extract from the log file :

Dec 13 15:44:48 as3 sendmail[28709]: PAA28709: from=<mjouvin_at_lalcls.in2p3.fr>,
s
ize=3728, class=0, pri=33728, nrcpts=1, msgid=<95121315444638_at_lalcls.in2p3.fr>,
proto=SMTP, relay=axs.lal.in2p3.fr [134.158.91.25]
Dec 13 15:44:48 as3 sendmail[28704]: PAA28709: SYSERR(root):
nfsgen.lal.in2p3.fr
 config error: mail loops back to me (MX problem?)
Dec 13 15:44:48 as3 sendmail[28704]: PAA28709: to=<jouvin_at_nfsgen.lal.in2p3.fr>,
delay=00:00:01, xdelay=00:00:00, mailer=smtp, relay=nfsgen.lal.in2p3.fr.
[134.15
8.91.80], stat=Local configuration error
Dec 13 15:44:48 as3 sendmail[28704]: PAA28709: PAA28704: postmaster notify:
Loca
l configuration error

This trace corresponds to a mail received for jouvin_at_nfsgen.lal.in2p3.fr.
nfsgen
is the name of the virtual host and has no associated MX.

I tried a lot of things in the configuration file. Here is the Cw and Dw, Dj
config I tried at last. But I tried almost any possible combination of Cw, Dw
and Dj (including not defining Dw and Dj).

Cwlocalhost
Cwmailer
Cwmailer.lal.in2p3.fr.
Cwnfsgen
Cwnfsgen.lal.in2p3.fr
Cwnfsgen.lal.in2p3.fr.
Cwas3
Cwas3.lal.in2p3.fr
Cwas3.lal.in2p3.fr.
Cwlal.in2p3.fr
Cwlal.in2p3.fr.
# file containing names of hosts for which we receive email
Fw/lal/gen/mgr/sendmail/lal-mailers.cw

# my official domain name
# ... define this only if sendmail cannot automatically determine your domain
#Dj$w.Foo.COM
Dwnfsgen
Djnfsgen.lal.in2p3.fr


I read about the IPC option but it is very unclear if it can help. I didn't
try.

Thnaks in advance for any help.

Michel Jouvin
LAL / CNRS - France


(cross posted in .comp.mail.sendmail and in alpha-osf-managers dist list)


- ---------------------------------19260234623099--
Received on Thu Dec 14 1995 - 14:30:30 NZDT

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