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Hello.
Since this morning, I'm having quite some problems with my Postfix
server, running on a Gentoo Linux ~x86 system.
To be able to send mail, I setup the system so, that I need to
authenticate first. User details are stored in a MySQL database, which
is running on the same host. I'm also running a Horde webmail
installation on the same machine which uses the same username/password
backend. With this backend, I am able to login. I also don't
have problems logging in to the Cyrus IMAP Server, running on
this host; it also uses the same usernames/passwords.
But since early this morning, when I login to the smtp server to
send a mail, I'm not able to do so anymore :( I now enabled debugging
at peer level 4 for my IP and found something in the syslog (please see
file "syslog entries.txt").
Note this:
Jun 19 15:06:03 hetzner postfix/master[25726]: warning: process
/usr/lib/postfix/smtpd pid 13555 killed by signal 11
I now created a tcpdump of such a session. You can find it at
http://alexander.skwar.name/~askwar/stuff/dump_port8443.tcpdump and
also attached (dump_port8443.tcpdump).
As you can see in the syslog output, I also enabled the debugger gdb.
It created the file /etc/postfix/debug/smtpd.13555.log, which contains
nothing of interest, as far as I can tell. See attached file smtpd.13555.log.
Attached, you can also find the postfinger output in postfinger.txt and
also saslfinger -s in saslfinger.txt.
Interestingly (?), saslfinger then just hangs there, until I press
<Ctrl>+<c>. After doing so, I get:
,----[ saslfinger -s, continued ]
| 250-AUTH CRAM-MD5 DIGEST-MD5 LOGIN PLAIN NTLM
| 250-AUTH=CRAM-MD5 DIGEST-MD5 LOGIN PLAIN NTLM
| -- end of saslfinger output --
`----
Some more files, which you find referenced in the configuration:
- /local/scripts/cyrus-spamc-filter.sh
- /local/scripts/spamc-filter.sh
- /etc/postfix/mysql-virtual.cf
- /etc/postfix/mysql-mydestination.cf
- /etc/postfix/virtual -> Contains nothing but comments; not attached.
- /etc/postfix/mydestinations
Any ideas about what's causing smtpd to die with a segmentation fault
all of a sudden?
Thanks a lot,
Alexander Skwar
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