Search found 6 matches

by ServerDude
11 Jan 2022, 12:37
Forum: General Discussion (csf)
Topic: CSF not blocking failed IMAP and POP3 logins on Interworx (CSF 14.15)
Replies: 6
Views: 2660

Re: CSF not blocking failed IMAP and POP3 logins on Interworx (CSF 14.15)

Here are the csf and lfd logs in case they're required: lfd logs: Jan 11 14:25:17 <hostname removed> lfd[936746]: (imapd) Failed IMAP login from <removed> (<Region/IP.domain removed>): 10 in the last 3600 secs - *Blocked in csf* [LF_IMAPD] Jan 11 14:31:08 <hostname removed> lfd[946621]: (pop3d) Fail...
by ServerDude
11 Jan 2022, 12:33
Forum: General Discussion (csf)
Topic: CSF not blocking failed IMAP and POP3 logins on Interworx (CSF 14.15)
Replies: 6
Views: 2660

Re: CSF not blocking failed IMAP and POP3 logins on Interworx (CSF 14.15)

Good Afternoon, I applied the older rules to regexcustom and failed IMAP and POP3 logins are now being blocked. After comparing the rules I see a number of changes here. I tested the rules and found that the grouping for $ip should be set to 10 in Regexmain. I've updated this in Regexmain on one of ...
by ServerDude
06 Jan 2022, 06:40
Forum: General Discussion (csf)
Topic: CSF not blocking failed IMAP and POP3 logins on Interworx (CSF 14.15)
Replies: 6
Views: 2660

Re: CSF not blocking failed IMAP and POP3 logins on Interworx (CSF 14.15)

Good Morning, Below are the logs: Jan 06 08:34:12 imap-login: Info: Disconnected (auth failed, 1 attempts in 2 secs): user=<failedlogin@csf>, method=PLAIN, rip=<removed>, lip=<removed>, TLS: Connection closed, session=<a0nhDuTUcqKl/yo5> Jan 06 08:34:41 imap-login: Info: Disconnected (auth failed, 1 ...
by ServerDude
05 Jan 2022, 11:56
Forum: General Discussion (csf)
Topic: CSF not blocking failed IMAP and POP3 logins on Interworx (CSF 14.15)
Replies: 6
Views: 2660

CSF not blocking failed IMAP and POP3 logins on Interworx (CSF 14.15)

It seems that this stopped working between October and November with the most recent IMAP block being on 02 Dec 2021. I'm not sure if it's related to the CSF 14.15 update that was released on 04 Dec. Looks like it updated on 05 December. This is affecting all our Interworx servers. These are my IMAP...
by ServerDude
16 Sep 2021, 10:56
Forum: Suggestions (csf)
Topic: qmail submission-login brute force
Replies: 1
Views: 4819

qmail submission-login brute force

Good Morning, We're running Interworx servers with qmail and have noticed that submission-logins aren't being blocked. Below is what the log entries look like in dovecot.log Sep 15 11:01:23 submission-login: Info: Remote closed connection (auth failed, 1 attempts in 3 secs): user=, method=LOGIN, rip...