On 2018-10-22 12:16, Shawn Heisey wrote:
On 10/21/2018 8:23 AM, André Rodier wrote:
I am using Zabbix to monitor my Dovecot server, and my logs are filled
with lines like this:
Oct 21 15:04:46 osaka dovecot[1256]: pop3-login: Aborted login (no
auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0.0.1,
secured, session=<bWd0nr14SuF/AAAB>
Oct 21 15:05:29 osaka dovecot[1256]: imap-login: Aborted login (no
auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0.0.1,
secured, session=<MlAGob147Jd/AAAB>
How can I disable logging these actions from 127.0.0.1?
Presumably you are concerned not so much with having these lines in
the logfile, as you are with your monitoring software seeing them and
generating alarms because they are reported to syslog as errors. If
I'm wrong about that, then the rest of this message probably won't
apply.
Monitoring software that reports errors in logfiles should have the
ability to specify messages to ignore. Often this is done with
regex. Since you mentioned Zabbix, I'm betting it's that software
that generates the reports you would like to stop. It looks like it
does have the ability to use a regex to filter logs.
https://www.zabbix.com/documentation/4.0/manual/config/items/itemtypes/log_items
This regex ought to do the trick and not filter out other error
messages (like login failures) that occur on localhost. Hopefully it
gets preserved on one line, not mangled by my mail client:
dovecot.*(imap|pop3)-login: Aborted .*rip=127\.0\.0\.\d+,
lip=127\.0\.0\.\d+,
The "\d+" notation generally only works if the software is using PCRE
- Perl Compatible Regular Expressions. It does look like Zabbix is
using PCRE, so if it's Zabbix we're talking about, that regex should
be OK. Possible replacements for \d+ if it doesn't work:
[0-9]+
[0-9]*
Thanks,
Shawn
These lines are in the mail.log. I am not talking about Zabbix.
Zabbix generate a connection every second, on both Postfix and Dovecot.
I want these two services to not log connections when they are coming
from 127.0.0.1, if possible.
Both journalctl (Systemd) and log files are spammed with these lines,
and I would like to avoid dovecot logging them.
I should have made this clearer.
Kind regards,
André
--
https://github.com/progmaticltd/homebox
