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Hello,
I have a postfix server with virtual domains and virtual users defined
in a LDAP directory (OpenLDAP). I have it all in linux server (debian
sarge) with postfix 2.1.5 and with nscd running.
I define my virtual users with
virtual_alias_maps = ldap:users
users_server_host = <my ldap server>
users_server_port = 389
users_bind = yes
users_bind_dn = <my ldap user>
users_bind_pw = <my ldap user's password>
users_search_base = dc=mydomain
users_query_filter = (&(mail=%s)(objectClass=CourierMailAccount))
aliases_result_attribute = uid
It works correctly, without any problem. Except last night. Last night
the nscd process died and since then postfix didn't deliver any message,
it bounced all messages with a user unknown error, like this:
Jun 1 12:21:06 myotis1 postfix/smtpd[27030]: connect from
xenon1.telemat.um.es[172.19.2.1]
Jun 1 12:21:14 myotis1 postfix/smtpd[27030]: 82B301600A3:
client=xenon1.telemat.um.es[172.19.2.1]
Jun 1 12:21:19 myotis1 postfix/cleanup[27033]: 82B301600A3:
message-id=<>
Jun 1 12:21:19 myotis1 postfix/qmgr[27027]: 82B301600A3:
from=<>, size=371, nrcpt=1 (queue active)
Jun 1 12:21:19 myotis1 postfix/local[27035]: 82B301600A3:
to=<>, orig_to=<>, relay=local,
delay=6, status=bounced (unknown user: "amateo")
Jun 1 12:21:19 myotis1 postfix/cleanup[27033]: 313261600B2:
message-id=<>
Jun 1 12:21:19 myotis1 postfix/qmgr[27027]: 313261600B2: from=<>,
size=2150, nrcpt=1 (queue active)
Jun 1 12:21:19 myotis1 postfix/qmgr[27027]: 82B301600A3: removed
Jun 1 12:21:19 myotis1 postfix/local[27035]: 313261600B2:
to=<>, orig_to=<>, relay=local,
delay=0, status=bounced (unknown user: "amateo")
Jun 1 12:21:19 myotis1 postfix/qmgr[27027]: 313261600B2: removed
where myotis1.telemat.um.es is the real name of the server and um.es is
one of its virtual domains.
All this happens while nscd is died, although the system is still
running without any problem. The users are already seen by the system,
except postfix.
Looking at the ldap logs, I observe that postfix makes a different
search depending of if nscd is running or not. When nscd is running it
searches for "mail=<user>@um.es", but when nscd is died, postfix
searches for "mail=<user>@myotis1.telemat.um.es" and then it has no
results.
Something more... I am running postfix in a chroot jail.
--
Angel L. Mateo Martínez
Sección de Telemática
Área de Tecnologías de la Información _o)
y las Comunicaciones Aplicadas (ATICA) / \\
http://www.um.es/atica _(___V
Tfo: 968367590
Fax: 968398337
