-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On Tue, 26 Jul 2016, Vince42 wrote:
[Steffen Kaiser] - [2016-07-25 08:23]
I am running a dovecot server and have set up an external monitoring,
where every five minutes a login with SSL on port 993 is done. I usually
get once a day an error "connection reset by peer - SSL connect", which
goes away until the next monitor is executed.
that looks like a basic networking issue to me.
Do you have logs how many users try to connect at this time? Is it
always the same time range? Is the server load very high?
My server has nice specs (in fact a 30 times lower scaled server never
had this kind of problems), I also don't host many domains and users,
therefore I doubt that some kind of limit might be touched. I also
suspected some internal system load, but unfortunately the error occurs
arbitrarily, which makes me think that no scheduled process is
responsible for this. I also ran 'top' during such an event without any
obvious load tasks. The system statistics also show no weird peaks. I
read about the "running out of random" phenomenon, but during such an
event there were still enough resources random-wise.
what about the network itself? Does the monitor crosses a firewall?
Could it be that I need to offer more login processes or that I should
raise some of my configuration values? The mail_max_userip_connections
does not seem to solve the problem.
usually you get some warning in the logs, if such limit is reached.
- --
Steffen Kaiser
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEVAwUBV5cLnXz1H7kL/d9rAQIEHgf9Fm+0PDtY+N2s2yYX1xcIntI8QdrmDuvU
oQP2FMY57bcnQXb4g3PYaplNCNDIljUfCyWAGC4y07kRXrbztbxhawXVSdXELQQ4
EHofsZPWoC19yPibz5hCQ2Bd2EEq9D7I2o68wQCsvDbaZgyPsHnTdfBONt/T9NGW
1gZTY44G0xX8QzpVkqhZcLYo4X5737NmceLis7eZajfgAn3XMrOgrKLoolEsMr3m
aTOIm4FcWGDU5V84zcbMIwC3+ukSR22RyOXeQcflU3k8i+PZh0dKmwS6a27ogk3Z
ZttoOE961p2i9wy2MaiXjkVpLrfkaNLsCcud10aH5B+xUzLn0mcFqA==
=NrfW
-----END PGP SIGNATURE-----
