We have a problem on a clients firewall running 4.009, with runaway SMTP proxy processes, here's what ps says: -
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 27242 52.2 0.4 3668 2276 ? R 13:37 254:13 /usr/bin/perl /usr/local/bin/anotifier [Content Manager] Forwarded em
root 3197 49.0 0.4 3668 2276 ? R 14:08 223:45 /usr/bin/perl /usr/local/bin/anotifier [Content Manager] Forwarded em
A more detailed check of each process shows (email addresses changed) : -
# ps -ef | grep 27242
root 27242 1 52 13:37 ? 04:22:44 /usr/bin/perl /usr/local/bin/anotifier [Content Manager] Forwarded email /var/chroot-smtp/spool/input/19cP7b-0002tK-00 customer@domain.co.uk
# ps -ef | grep 3197
root 3197 1 49 14:08 ? 03:53:20 /usr/bin/perl /usr/local/bin/anotifier [Content Manager] Forwarded email /var/chroot-smtp/spool/input/19cQ4m-0007Ro-00 customer@domain.co.uk
Yet a check of the spool shows that there are no files: -
# ls -la /var/chroot-smtp/spool/input
total 8
drwxr-xr-x 2 squid 666 4096 Jul 15 21:41 .
drwxr-xr-x 8 squid 666 4096 Jul 15 14:09 ..
Up2Date runs daily and is up2date ...
Tue Jul 15 22:36:16 UTC 2003
000 Starting Update Service.
001 Getting update list from server 212.126.210.201......Connected!
002 Your system is up2date.
and there are no packages waiting to be installed.
Spam detection is enabled with the following: -
Sender address verification - disabled
sender blacklist - enabled with just one domain listed
Spam detection - enabled, action = Quarantine, strategy = Reasonable and 10 domains in the whitelist
RBL - enabled
File extension filter - disabled
Expression filter - enabled and set to quarantine with a single entry set to "f.u.c.k"
A detailed check of the maillogs shows that the problem may be related to the expression filter (Email addresses have been hashed out)
Jul 15 12:41:32 (none) exim[11118]: 2003-07-15 12:41:32 19cP7b-0002tK-00 exiscan: unwanted regular expression (string match) found (anal) Host=none/unresolved/local [216.31.204.68] Sender='cwe-update@cw360.ruk1.com' Recipients[1]=[xxxxx@xxxxx.co.uk] Subject='Security:Want To Be a Cisco Certified Security Professional?/Evaluating SSL VPNs?/SPAM: Filter the Genuine from the Junk!'
Jul 15 12:41:32 (none) exim[11118]: 2003-07-15 12:41:32 19cP7b-0002tK-00 exiscan: freezing.
Jul 15 12:41:32 (none) exim[11118]: 2003-07-15 12:41:32 19cP7b-0002tK-00 cwe-update@cw360.ruk1.com H=(lo2-r2-omp2.ruk1.net) [216.31.204.68] P=esmtp S=23837
Jul 15 12:41:32 (none) exim[11122]: 2003-07-15 12:41:32 19cP7b-0002tK-00 moved from input, msglog to Finput, Fmsglog
Jul 15 13:42:52 (none) exim[28632]: 2003-07-15 13:42:52 19cQ4m-0007Ro-00 exiscan: unwanted regular expression (string match) found (anal) Host=none/unresolved/local [193.237.22.37] Sender='xxxxxx@xxxxxxxx.co.uk' Recipients[1]=[xxxxx@xxxxx.co.uk] Subject=''
Jul 15 13:42:52 (none) exim[28632]: 2003-07-15 13:42:52 19cQ4m-0007Ro-00 exiscan: freezing.
Jul 15 13:42:52 (none) exim[28632]: 2003-07-15 13:42:52 19cQ4m-0007Ro-00 xxxxx@xxxxx.co.uk H=(server01.xxxx.local) [111.111.111.111] P=esmtp S=66278 id=C0E271B3E36DC84CB1CD87CE1829C281015281@server01.xxxxx.local
Jul 15 13:42:52 (none) exim[28697]: 2003-07-15 13:42:52 19cQ4m-0007Ro-00 moved from input, msglog to Finput, Fmsglog
We have disabled the expression filter check and will wait to see if the problem reoccurs, however the customer will want this feature if we tell him they can't have it [:(]
Help ....
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