On 8/2/2018 6:27 AM, Aristos Vasiliou wrote: > Ok bear with me please, I'm still struggling to understand the logic. > > So I figured out the email issue. > > *All three commands below can sent out email, no problem there.* > > echo "test mail" | mail -s subject [email protected] > echo "test mailx" | mailx -s "subject" [email protected] > echo "Subject: test sendmail" | sendmail -v [email protected]
That only proves that your user is able to send emails, nothing else. Unless you executed those as root (but still root with a shell environment is different than root as a service). > *My /etc/fail2ban/jail.local configuration is as follows* > > destemail = [email protected] > sender = root@localhost > mta = sendmail > [sshd] [snip] > Aug 02 14:24:13 freepbx sendmail[3820]: w72BODCj003820: > from=root@localhost, size=225, class=0, nrcpts=1, > msgid=<[email protected]>, > relay=root@localhost > > Aug 02 14:24:13 freepbx sendmail[3820]: w72BODCj003820: > [email protected], ctladdr=root@localhost (0/0), delay=00:00:00, > xdelay=00:00:00, mailer=relay, pri=30225, relay=[127.0.0.1] [127.0.0.1], > dsn=4.0.0, stat=Deferred: Connection refused by [127.0.0.1] "Connection refused" means there's a mail configuration problem. > *When fail2ban bans an ip, /var/log/maillog shows me this* > > Aug 2 14:15:24 localhost sendmail[3409]: w72BFOZM003409: > from=root@localhost, size=352, class=0, nrcpts=1, > msgid=<[email protected]>, > relay=root@localhost > > Aug 2 14:15:24 localhost sendmail[3409]: w72BFOZM003409: > [email protected], ctladdr=root@localhost (0/0), delay=00:00:00, > xdelay=00:00:00, mailer=relay, pri=30352, relay=[127.0.0.1] [127.0.0.1], > dsn=4.0.0, stat=Deferred: Connection refused by [127.0.0.1] Two problems show here, first the message is from sendmail, weren't you using postfix? You may want to check on your mail log how the manual test actually looks like. Also check the output of 'll $(which sendmail)' in a bash shell. Second problem is the connection refused, either "root@localhost" is not allowed to send emails (you could try [email protected], not literally), or perhaps the configuration explicitly says not to allow relaying (which is also odd in that message) from local host. > Any guesses on what I could be doing wrong here? My guess is that the only problem is with the mail server configuration. Is it postfix or sendmail? The log says sendmail. Then sendmail configuration is what you should check. As the comments on jail.local say (distros usually install a jail.local with comments), the default mta is sendmail, but you can use/try mail. -- René Berber
signature.asc
Description: OpenPGP digital signature
------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________ Fail2ban-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/fail2ban-users
