Package: exim4 Version: 4.50-8sarge2 Severity: normal
Yesterday exim died with the following error in the panic log: 2006-11-22 06:25:23 +1100 Cannot open main log file "/var/log/exim4/mainlog": Permission denied: euid=102 egid=102 This was a fairly busy server so by the time I managed to get to it 20k messages got backed up. Having thought about it though the only way I could see the above happening would be due to a race condition in logrotate between logrotates create option fulfilling its duties and exim trying to deliver/accept an email. I think it would've gone a little like this: logrotate rotates the logs logrotate creates a new log file due to the create option exim attempts to log to the new logfile exim fails to log as logfile is owned root.adm (no write permissions) exim panics and bails logrotate chowns logfile to Debian-exim.adm logrotate chmods logfile 640 It was a slim chance but I cannot think of what else might have happened. The obvious fix, as far as I can see, was to replace the create option with nocreate. It's not necessary as exim will automatically attempt to create the logfile if it's missing and since the log dir is owned by Debian-exim and exim has write permissions it'll succeed. The dir is also group sticky so the new file will automatically get group-owned to adm. About the only thing that'll be lacking, I think, is the group read permission but that's better then no mail server IMO. If I'm wrong then I'm lost as to an explanation for what happened. This was with a custom build of 4.62-1, btw though I have checked and the logrotation is thesame for the standard sarge build. -- Package-specific info: Exim version 4.50 #1 built 11-Apr-2006 12:29:22 Copyright (c) University of Cambridge 2004 Berkeley DB: Sleepycat Software: Berkeley DB 4.2.52: (December 3, 2003) Support for: iconv() IPv6 GnuTLS Lookups: lsearch wildlsearch nwildlsearch iplsearch cdb dbm dbmnz dsearch nis nis0 passwd Authenticators: cram_md5 plaintext Routers: accept dnslookup ipliteral manualroute queryprogram redirect Transports: appendfile/maildir/mailstore autoreply lmtp pipe smtp Fixed never_users: 0 Configuration file is /var/lib/exim4/config.autogenerated -- System Information: Debian Release: 3.1 Architecture: i386 (i686) Kernel: Linux 2.6.16.29 Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) Versions of packages exim4 depends on: ii exim4-base 4.50-8sarge2 support files for all exim MTA (v4 ii exim4-daemon-light 4.50-8sarge2 lightweight exim MTA (v4) daemon -- no debconf information -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]