View file File name : asterisk.conf Content :# Fail2Ban filter for asterisk authentication failures # [INCLUDES] # Read common prefixes. If any customizations available -- read them from # common.local before = common.conf [Definition] _daemon = asterisk __pid_re = (?:\s*\[\d+\]) iso8601 = \d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d+[+-]\d{4} # All Asterisk log messages begin like this: log_prefix= (?:NOTICE|SECURITY|WARNING)%(__pid_re)s:?(?:\[C-[\da-f]*\])?:? [^:]+:\d*(?:(?: in)? [^:]+:)? prefregex = ^%(__prefix_line)s%(log_prefix)s <F-CONTENT>.+</F-CONTENT>$ failregex = ^Registration from '[^']*' failed for '<HOST>(:\d+)?' - (?:Wrong password|Username/auth name mismatch|No matching peer found|Not a local domain|Device does not match ACL|Peer is not supposed to register|ACL error \(permit/deny\)|Not a local domain)$ ^Call from '[^']*' \(<HOST>:\d+\) to extension '[^']*' rejected because extension not found in context ^(?:Host )?<HOST> (?:failed (?:to authenticate\b|MD5 authentication\b)|tried to authenticate with nonexistent user\b) ^No registration for peer '[^']*' \(from <HOST>\)$ ^hacking attempt detected '<HOST>'$ ^SecurityEvent="(?:FailedACL|InvalidAccountID|ChallengeResponseFailed|InvalidPassword)"(?:(?:,(?!RemoteAddress=)\w+="[^"]*")*|.*?),RemoteAddress="IPV[46]/[^/"]+/<HOST>/\d+"(?:,(?!RemoteAddress=)\w+="[^"]*")*$ ^"Rejecting unknown SIP connection from <HOST>(?::\d+)?"$ ^Request (?:'[^']*' )?from '(?:[^']*|.*?)' failed for '<HOST>(?::\d+)?'\s\(callid: [^\)]*\) - (?:No matching endpoint found|Not match Endpoint(?: Contact)? ACL|(?:Failed|Error) to authenticate)\s*$ # FreePBX (todo: make optional in v.0.10): # ^(%(__prefix_line)s|\[\]\s*WARNING%(__pid_re)s:?(?:\[C-[\da-f]*\])? )[^:]+: Friendly Scanner from <HOST>$ ignoreregex = datepattern = {^LN-BEG} # Author: Xavier Devlamynck / Daniel Black # # General log format - main/logger.c:ast_log # Address format - ast_sockaddr_stringify # # First regex: channels/chan_sip.c # # main/logger.c:ast_log_vsyslog - "in {functionname}:" only occurs in syslog journalmatch = _SYSTEMD_UNIT=asterisk.service [lt_journal] # asterisk can log timestamp if logs into systemd-journal (optional part matching this timestamp, gh-2383): __extra_timestamp = (?:\[[^\]]+\]\s+)? __prefix_line = %(known/__prefix_line)s%(__extra_timestamp)s