• Debian 11 is approaching its end-of-life (vendor EOL date - August 31, 2026). Plesk Obsidian 18.0.80 will be the last release to support it.
    If you are running Plesk Obsidian on Debian 11, we recommend you upgrade those servers to Debian 12 using our dist-upgrade tool.
  • We plan to deprecate and remove the support for XML RPC protocol versions earlier than 1.6.9.1 in Plesk Obsidian 18.0.82. We strongly recommend that you update all existing integrations using earlier versions of the XML RPC protocol to comply with the version 1.6.9.1 specification.

Question Mail Log / Dovecot

othmaqsa

Regular Pleskian
Server operating system version
Ubuntu 20.04.4 LTS
Plesk version and microupdate number
18.0.44
Hello everyone,

For the following log:

dovecot: imap-login: Disconnected: Connection closed: SSL_accept() failed: error:1408F09C:SSL routines:ssl3_get_record:http request (no auth attempts in 1 secs): user=<>, rip=194.195.246.175, lip=74.208 .206.239, TLS handshaking: SSL_accept() failed: error:1408F09C:SSL routines:ssl3_get_record:http request, session=<J9MfJKji8MPCw/av>

From what I understood in the message, there was a connection attempt, from IP 194.195.246.175, but the certificate was not validated.

Is it possible to modify the DOVECOT jail by putting 1 as the number of attempts and 7200 seconds as the duration of the ban in order to block this kind of attempt?

Thank you in advance
 
Back
Top