I am running F2b v0.11.1 from EPEL on ClearOS 7 (binary compatible with
Centos7). Every time I start f2b I see the following in my logs:
2021-07-09 07:18:48,499 fail2ban.filtersystemd [5101]: INFO [postfix]
Added journal match for: '_SYSTEMD_UNIT=postfix.service'
2021-07-09 07:18:48,505 fail2ban.filter [5101]: INFO maxRetry: 5
2021-07-09 07:18:48,505 fail2ban.filter [5101]: INFO encoding: UTF-8
2021-07-09 07:18:48,505 fail2ban.filter [5101]: INFO findtime: 36000
2021-07-09 07:18:48,505 fail2ban.actions [5101]: INFO banTime: 432000
2021-07-09 07:18:48,506 fail2ban.jail [5101]: INFO Creating
new jail 'postfix-sasl'
2021-07-09 07:18:48,506 fail2ban.jail [5101]: INFO Jail
'postfix-sasl' uses systemd {}
2021-07-09 07:18:48,506 fail2ban.jail [5101]: INFO Initiated
'systemd' backend
2021-07-09 07:18:48,506 fail2ban.filtersystemd [5101]: INFO
[postfix-sasl] Added journal match for: '_SYSTEMD_UNIT=postfix.service'
2021-07-09 07:18:48,508 fail2ban.filter [5101]: INFO maxRetry: 1
2021-07-09 07:18:48,508 fail2ban.filter [5101]: INFO encoding: UTF-8
2021-07-09 07:18:48,508 fail2ban.filter [5101]: INFO findtime: 14400
2021-07-09 07:18:48,508 fail2ban.actions [5101]: INFO banTime: 432000
2021-07-09 07:18:48,508 fail2ban.jail [5101]: INFO Creating
new jail 'cyrus-imap'
2021-07-09 07:18:48,508 fail2ban.jail [5101]: INFO Jail
'cyrus-imap' uses systemd {}
2021-07-09 07:18:48,508 fail2ban.jail [5101]: INFO Initiated
'systemd' backend
2021-07-09 07:18:48,510 fail2ban.filter [5101]: INFO maxRetry: 1
2021-07-09 07:18:48,510 fail2ban.filter [5101]: INFO encoding: UTF-8
2021-07-09 07:18:48,510 fail2ban.filter [5101]: INFO findtime: 86400
2021-07-09 07:18:48,510 fail2ban.actions [5101]: INFO banTime: 432000
<snip>
2021-07-09 07:18:48,993 fail2ban.jail [5101]: INFO Jail
'postfix' started
2021-07-09 07:18:48,997 fail2ban.jail [5101]: INFO Jail
'postfix-sasl' started
2021-07-09 07:18:48,997 fail2ban.filtersystemd [5101]: NOTICE Jail
started without 'journalmatch' set. Jail regexs will be checked against
all journal entries, which is not advised for performance reasons.
2021-07-09 07:18:48,998 fail2ban.jail [5101]: INFO Jail
'cyrus-imap' started
I assume the journalmatch warning is in reference to the preceding jail,
postfix-sasl, but if that is the case, why is the postfix jail not
seeing the same warning?
At the same time the jails are using the default basic configuration
except for changed findtime, bantime and max retries, and for cyrus-imap
the port range is extended to include imap3, pop3 and pop3s.
Do you know why I am getting the warning and what do I need to do to fix it?
Regards,
Nick
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