fail2ban/config/filter.d/guacamole.conf

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# Fail2Ban configuration file for guacamole
#
# Author: Steven Hiscocks
#
[Definition]
logging = catalina
failregex = <L_<logging>/failregex>
maxlines = <L_<logging>/maxlines>
datepattern = <L_<logging>/datepattern>
[L_catalina]
failregex = ^.*\nWARNING: Authentication attempt from <HOST> for user "[^"]*" failed\.$
maxlines = 2
datepattern = ^%%b %%d, %%ExY %%I:%%M:%%S %%p
^WARNING:()**
{^LN-BEG}
[L_webapp]
failregex = ^ \[\S+\] WARN \S+ - Authentication attempt from <HOST> for user "<F-USER>[^"]+</F-USER>" failed.
maxlines = 1
datepattern = ^%%H:%%M:%%S.%%f
# DEV Notes:
#
# failregex is based on the default pattern given in Guacamole documentation :
# https://guacamole.apache.org/doc/gug/configuring-guacamole.html#webapp-logging
#
# The following logback.xml Guacamole configuration file can then be used accordingly :
# <configuration>
# <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
# <file>/var/log/guacamole.log</file>
# <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
# <fileNamePattern>/var/log/guacamole.%d.log.gz</fileNamePattern>
# <maxHistory>32</maxHistory>
# </rollingPolicy>
# <encoder>
# <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
# </encoder>
# </appender>
# <root level="info">
# <appender-ref ref="FILE" />
# </root>
# </configuration>