The current regex doesn't match the following log entry, seen with
Postfix 3.10.2:
Sep 17 18:19:20 mxhost postfix/smtpd[12345]: NOQUEUE: lost connection after CONNECT from unknown[192.0.2.25]
Sep 17 18:19:20 mxhost postfix/smtpd[12345]: disconnect from unknown[192.0.2.25] commands=0/0
- with `prefregex` to capture content of error only (bypass common prefix and suffix, like server, request, host, referrer);
- to match PAM authentication failures (gh-4071)
- new variant for `no auth attempts in X secs` with `Login aborted` and `(no_auth_attempts)`;
- covered `disconnected during TLS handshake` with `no application protocol` and `no shared cipher`.
Dovecot 2.4 release is a major upgrade
Logger event structure has changed, all messages are now
prefixed with:
"Login aborted: " <reason> "auth failed"
Maintain 2.3 support as many folks have yet to migrate,
community edition is still receiving cretial security patches
Dovecot 2.4.1
Python 3.12.10
Signed-off-by: Nic Boet <nic@boet.cc>
since line 7 matches successfully now (it was disabled in gh-358 because of obsolete format), it is marked as match:true (line can be removed later if unneeded)
- they have basically nothing with authentication;
- they can cause false positives (e. g. someone sends several mails from google mailing server to wrong recipients and if they would cause "rejected RCPT - Unknown user", the google host gets banned;
- to avoid occasional ban of legitimate servers one'd need create large white-list for `ignoreip` or construct complex `ignorecommands` to exclude all legitimate servers of big players (like google, microsoft, GMX, etc);
Dropbear uses `strftime` `"%b %d %H:%M:%S` to print its timestamps, hence we know the day and time format, but the month could be localized. We hence allow any 3 word characters for it, and additionally simplify the day and time pattern into a single group.
Signed-off-by: MichaIng <micha@dietpi.com>
Since Debian Bookworm, the distribution ships Dropbear with a native systemd service instead of the default upstream init.d service, and accordingly uses the `-F` and `-E` flags, to run it in foreground and have it logging to STDOUT instead of syslog.
As usual, timestamps and also the PID are now included by the log message emitted by Dropbear, in addition to the systemd journal log prefix.
The Dropbear filter hence does not match anymore. This commit adds the PID and timestamp as optional pattern between prefix and fail log text, to support Dropbear on Debian Bookworm and newer (and likely new versions of other distros) without breaking the old pattern when running Dropbear without `-E` flag.
Additionally, for performance reasons, this commit adds a `journalmatch` entry, matching Debian's and Fedora's `dropbear.service` with `dropbear` executable/identifier, the most likely match for a Dropbear systemd service.
Signed-off-by: MichaIng <micha@dietpi.com>
