Why does fail2ban not trigger my custom filter?
0
fail2ban-regex verified that my filter matches Jan 14 07:39:41 myhost01 sshd[26433]: Connection closed by authenticating user root 127.0.0.1 port 56216 [preauth] 68 times inside auth.log, but fail2ban-client status sshd-preauth shows 0 matched filters and actions. What might I be missing?
jail.d/custom.local
[sshd-preauth]
enabled = true
logpath = /var/log/auth.log
backend = auto
banaction = disable-user
maxretry = 1
findtime = 1m
filter = sshd-preauth
filter.d/sshd-preauth.conf
[INCLUDES]
before = common.conf
[DEFAULT]
_daemon = sshd
__pref = (?:(?:error|fatal): (?:PAM: )?)?
__suff = (?: [preauth])?s*
__on_port_opt = (?: port d+)?(?: on S+(?: port d+)?)?
__alg_match = (?:(?:w+ (?!foundb)){0,2}w+)
[Definition]
prefregex = ^<F-MLFID>%(__prefix_line)s</F-MLFID>%(__pref)s<F-CONTENT>.+</F-CONTENT>$
failregex = ^Connection closed by authenticating user root (?P<ip4>(?:d{1,3}.){3}d{1,3}) port d+ [preauth]$
datepattern = {^LN-BEG}
action.d/disable-user.conf
[Definition]
actionstart = touch /tmp/01234
actionstop =
actioncheck =
actionban = touch /tmp/OSSEC
actionunban = touch /tmp/UNBAN
fail2ban-regex
fail2ban-regex /var/log/auth.log /etc/fail2ban/filter.d/sshd-preauth.conf
Running tests
Use failregex filter file : sshd-preauth, basedir: /etc/fail2ban
Use datepattern : Default Detectors
Use log file : /var/log/auth.log
Use encoding : UTF-8
Results
Failregex: 68 total
|- #) [# of hits] regular expression
| 1) [68] ^Connection closed by authenticating user root (?P<ip4>(?:d{1,3}.){3}d{1,3}) port d+ [preauth]$
`-
Ignoreregex: 0 total
Date template hits:
|- [# of hits] date format
| [865] {^LN-BEG}(?:DAY )?MON Day %k:Minute:Second(?:.Microseconds)?(?: ExYear)?
`-
Lines: 865 lines, 0 ignored, 68 matched, 797 missed
[processed in 0.06 sec]
Missed line(s): too many to print. Use --print-all-missed to print all 797 lines
linux regular-expression logs fail2ban
asked 2 hours ago
fremonfremon
216
add a comment |
0
fail2ban-regex verified that my filter matches Jan 14 07:39:41 myhost01 sshd[26433]: Connection closed by authenticating user root 127.0.0.1 port 56216 [preauth] 68 times inside auth.log, but fail2ban-client status sshd-preauth shows 0 matched filters and actions. What might I be missing?
jail.d/custom.local
[sshd-preauth]
enabled = true
logpath = /var/log/auth.log
backend = auto
banaction = disable-user
maxretry = 1
findtime = 1m
filter = sshd-preauth
filter.d/sshd-preauth.conf
[INCLUDES]
before = common.conf
[DEFAULT]
_daemon = sshd
__pref = (?:(?:error|fatal): (?:PAM: )?)?
__suff = (?: [preauth])?s*
__on_port_opt = (?: port d+)?(?: on S+(?: port d+)?)?
__alg_match = (?:(?:w+ (?!foundb)){0,2}w+)
[Definition]
prefregex = ^<F-MLFID>%(__prefix_line)s</F-MLFID>%(__pref)s<F-CONTENT>.+</F-CONTENT>$
failregex = ^Connection closed by authenticating user root (?P<ip4>(?:d{1,3}.){3}d{1,3}) port d+ [preauth]$
datepattern = {^LN-BEG}
action.d/disable-user.conf
[Definition]
actionstart = touch /tmp/01234
actionstop =
actioncheck =
actionban = touch /tmp/OSSEC
actionunban = touch /tmp/UNBAN
fail2ban-regex
fail2ban-regex /var/log/auth.log /etc/fail2ban/filter.d/sshd-preauth.conf
Running tests
Use failregex filter file : sshd-preauth, basedir: /etc/fail2ban
Use datepattern : Default Detectors
Use log file : /var/log/auth.log
Use encoding : UTF-8
Results
Failregex: 68 total
|- #) [# of hits] regular expression
| 1) [68] ^Connection closed by authenticating user root (?P<ip4>(?:d{1,3}.){3}d{1,3}) port d+ [preauth]$
`-
Ignoreregex: 0 total
Date template hits:
|- [# of hits] date format
| [865] {^LN-BEG}(?:DAY )?MON Day %k:Minute:Second(?:.Microseconds)?(?: ExYear)?
`-
Lines: 865 lines, 0 ignored, 68 matched, 797 missed
[processed in 0.06 sec]
Missed line(s): too many to print. Use --print-all-missed to print all 797 lines
linux regular-expression logs fail2ban
asked 2 hours ago
fremonfremon
216
add a comment |
0
0
0
fail2ban-regex verified that my filter matches Jan 14 07:39:41 myhost01 sshd[26433]: Connection closed by authenticating user root 127.0.0.1 port 56216 [preauth] 68 times inside auth.log, but fail2ban-client status sshd-preauth shows 0 matched filters and actions. What might I be missing?
jail.d/custom.local
[sshd-preauth]
enabled = true
logpath = /var/log/auth.log
backend = auto
banaction = disable-user
maxretry = 1
findtime = 1m
filter = sshd-preauth
filter.d/sshd-preauth.conf
[INCLUDES]
before = common.conf
[DEFAULT]
_daemon = sshd
__pref = (?:(?:error|fatal): (?:PAM: )?)?
__suff = (?: [preauth])?s*
__on_port_opt = (?: port d+)?(?: on S+(?: port d+)?)?
__alg_match = (?:(?:w+ (?!foundb)){0,2}w+)
[Definition]
prefregex = ^<F-MLFID>%(__prefix_line)s</F-MLFID>%(__pref)s<F-CONTENT>.+</F-CONTENT>$
failregex = ^Connection closed by authenticating user root (?P<ip4>(?:d{1,3}.){3}d{1,3}) port d+ [preauth]$
datepattern = {^LN-BEG}
action.d/disable-user.conf
[Definition]
actionstart = touch /tmp/01234
actionstop =
actioncheck =
actionban = touch /tmp/OSSEC
actionunban = touch /tmp/UNBAN
fail2ban-regex
fail2ban-regex /var/log/auth.log /etc/fail2ban/filter.d/sshd-preauth.conf
Running tests
Use failregex filter file : sshd-preauth, basedir: /etc/fail2ban
Use datepattern : Default Detectors
Use log file : /var/log/auth.log
Use encoding : UTF-8
Results
Failregex: 68 total
|- #) [# of hits] regular expression
| 1) [68] ^Connection closed by authenticating user root (?P<ip4>(?:d{1,3}.){3}d{1,3}) port d+ [preauth]$
`-
Ignoreregex: 0 total
Date template hits:
|- [# of hits] date format
| [865] {^LN-BEG}(?:DAY )?MON Day %k:Minute:Second(?:.Microseconds)?(?: ExYear)?
`-
Lines: 865 lines, 0 ignored, 68 matched, 797 missed
[processed in 0.06 sec]
Missed line(s): too many to print. Use --print-all-missed to print all 797 lines
linux regular-expression logs fail2ban
asked 2 hours ago
fremonfremon
216
fail2ban-regex verified that my filter matches Jan 14 07:39:41 myhost01 sshd[26433]: Connection closed by authenticating user root 127.0.0.1 port 56216 [preauth] 68 times inside auth.log, but fail2ban-client status sshd-preauth shows 0 matched filters and actions. What might I be missing?
jail.d/custom.local
[sshd-preauth]
enabled = true
logpath = /var/log/auth.log
backend = auto
banaction = disable-user
maxretry = 1
findtime = 1m
filter = sshd-preauth
filter.d/sshd-preauth.conf
[INCLUDES]
before = common.conf
[DEFAULT]
_daemon = sshd
__pref = (?:(?:error|fatal): (?:PAM: )?)?
__suff = (?: [preauth])?s*
__on_port_opt = (?: port d+)?(?: on S+(?: port d+)?)?
__alg_match = (?:(?:w+ (?!foundb)){0,2}w+)
[Definition]
prefregex = ^<F-MLFID>%(__prefix_line)s</F-MLFID>%(__pref)s<F-CONTENT>.+</F-CONTENT>$
failregex = ^Connection closed by authenticating user root (?P<ip4>(?:d{1,3}.){3}d{1,3}) port d+ [preauth]$
datepattern = {^LN-BEG}
action.d/disable-user.conf
[Definition]
actionstart = touch /tmp/01234
actionstop =
actioncheck =
actionban = touch /tmp/OSSEC
actionunban = touch /tmp/UNBAN
fail2ban-regex
fail2ban-regex /var/log/auth.log /etc/fail2ban/filter.d/sshd-preauth.conf
Running tests
Use failregex filter file : sshd-preauth, basedir: /etc/fail2ban
Use datepattern : Default Detectors
Use log file : /var/log/auth.log
Use encoding : UTF-8
Results
Failregex: 68 total
|- #) [# of hits] regular expression
| 1) [68] ^Connection closed by authenticating user root (?P<ip4>(?:d{1,3}.){3}d{1,3}) port d+ [preauth]$
`-
Ignoreregex: 0 total
Date template hits:
|- [# of hits] date format
| [865] {^LN-BEG}(?:DAY )?MON Day %k:Minute:Second(?:.Microseconds)?(?: ExYear)?
`-
Lines: 865 lines, 0 ignored, 68 matched, 797 missed
[processed in 0.06 sec]
Missed line(s): too many to print. Use --print-all-missed to print all 797 lines
linux regular-expression logs fail2ban
linux regular-expression logs fail2ban
asked 2 hours ago
fremonfremon
216
asked 2 hours ago
fremonfremon
216
asked 2 hours ago
fremonfremon
216
asked 2 hours ago
fremonfremon
216
asked 2 hours ago
fremonfremon
216
216
add a comment |
add a comment |
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