| SYSTEM INFORMATION | |
|---|---|
| OS type and version | Rocky Linux 9.1 |
| Webmin version | 2.001 |
| Virtualmin version | 7.3 Pro |
Hi
Since I swapped to Rocky Linux 9 I can’t get fail2ban and sendmail to work together to send out mails.
On my old server I simply activated sendmail und the filter action jails and it simply worked but here simply no mail is send out.
I tested the command for sendmail (/usr/sbin/sendmail -f “” “”) just under ssh and it works well, just not from fail2ban
Here is from my jail.local file
[sshd]
enabled = true
port = ssh
action = sendmail[name=sshd, dest=mailadresse]
abuseipdb[abuseipdb_category=18,22]
blocklist_de[]
iptables-allports[]
maxretry = 3
findtime = 3h
bantime = 31d
sendmail.conf file
# Fail2Ban configuration file
#
# Author: Viktor Szépe
#
#
[INCLUDES]
before = sendmail-common.conf
helpers-common.conf
[Definition]
# bypass ban/unban for restored tickets
norestored = 1
# Option: actionban
# Notes.: Command executed when banning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# You need to install geoiplookup and the GeoLite or GeoIP databases.
# (geoip-bin and geoip-database in Debian)
# The host command comes from bind9-host package.
# Tags: See jail.conf(5) man page
# Values: CMD
#
actionban = ( printf %%b "Subject: [Fail2Ban GeoIP] <name>: banned <ip> from <fq-hostname>
Date: `LC_ALL=C date +"%%a, %%d %%h %%Y %%T %%z"`
From: <sendername> <<sender>>
To: <dest>\n
Hi,\n
The IP <ip> has just been banned by Fail2Ban after
<failures> attempts against <name>.\n\n
Here is more information about <ip> :\n
http://bgp.he.net/ip/<ip>
http://www.projecthoneypot.org/ip_<ip>
http://whois.domaintools.com/<ip>\n\n
Country:`geoiplookup -f /usr/share/GeoIP/GeoIP.dat "<ip>" | cut -d':' -f2-`
AS:`geoiplookup -f /usr/share/GeoIP/GeoIPASNum.dat "<ip>" | cut -d':' -f2-`
hostname: <ip-host>\n\n
Lines containing failures of <ip> (max <grepmax>)\n";
%(_grep_logs)s;
printf %%b "\n
Regards,\n
Fail2Ban" ) | <mailcmd>
[Init]
# Default name of the chain
#
name = default
# Path to the log files which contain relevant lines for the abuser IP
#
logpath = /dev/null
# Number of log lines to include in the email
#
#grepmax = 1000
#grepopts = -m <grepmax>
and than sendmail-common.conf
# Fail2Ban configuration file
#
# Common settings for sendmail actions
#
# Users can override the defaults in sendmail-common.local
[INCLUDES]
after = sendmail-common.local
[Definition]
# Option: actionstart
# Notes.: command executed on demand at the first ban (or at the start of Fail2Ban if actionstart_on_demand is set to false).
# Values: CMD
#
actionstart = printf %%b "Subject: [Fail2Ban] <name>: started on <fq-hostname>
Date: `LC_ALL=C date +"%%a, %%d %%h %%Y %%T %%z"`
From: <sendername> <<sender>>
To: <dest>\n
Hi,\n
The jail <name> has been started successfully.\n
Regards,\n
Fail2Ban" | <mailcmd>
# Option: actionstop
# Notes.: command executed at the stop of jail (or at the end of Fail2Ban)
# Values: CMD
#
actionstop = printf %%b "Subject: [Fail2Ban] <name>: stopped on <fq-hostname>
Date: `LC_ALL=C date +"%%a, %%d %%h %%Y %%T %%z"`
From: <sendername> <<sender>>
To: <dest>\n
Hi,\n
The jail <name> has been stopped.\n
Regards,\n
Fail2Ban" | <mailcmd>
# Option: actioncheck
# Notes.: command executed once before each actionban command
# Values: CMD
#
actioncheck =
# Option: actionban
# Notes.: command executed when banning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: See jail.conf(5) man page
# Values: CMD
#
actionban =
# Option: actionunban
# Notes.: command executed when unbanning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: See jail.conf(5) man page
# Values: CMD
#
actionunban =
[Init]
# Your system mail command
#
mailcmd = /usr/sbin/sendmail -f "<sender>" "<dest>"
# Recipient mail address
#
dest = mailadresse
# Sender mail address
#
sender = mailadresse
# Sender display name
#
sendername = Fail2Ban