Created
November 14, 2014 21:05
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PFSense 2.1 logstash config
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input { | |
tcp { | |
type => syslog | |
port => 514 | |
} | |
udp { | |
type => syslog | |
port => 514 | |
} | |
} | |
filter { | |
if [host] =~ /10\.0\.50\.1/ { | |
mutate { | |
add_tag => ["PFSense", "Ready"] | |
} | |
grok { | |
add_tag => [ "firewall" ] | |
match => [ "message", "<(?<evtid>.*)>(?<datetime>(?:Jan(?:uary)?|Feb(?:ruary)?|Mar(?:ch)?|Apr(?:il)?|May|Jun(?:e)?|Jul(?:y)?|Aug(?:ust)?|Sep(?:tember)?|Oct(?:ober)?|Nov(?:ember)?|Dec(?:ember)?)\s+(?:(?:0[1-9])|(?:[12][0-9])|(?:3[01])|[1-9]) (?:2[0123]|[01]?[0-9]):(?:[0-5][0-9]):(?:[0-5][0-9])) (?<prog>.*?): (?<msg>.*)" ] | |
} | |
mutate { | |
gsub => ["datetime"," "," "] | |
} | |
date { | |
match => [ "datetime", "MMM dd HH:mm:ss" ] | |
timezone => "Europe/London" | |
} | |
mutate { | |
replace => [ "message", "%{msg}" ] | |
} | |
mutate { | |
remove_field => [ "msg", "datetime" ] | |
} | |
} | |
if [prog] =~ /^pf$/ { | |
mutate { | |
add_tag => [ "packetfilter" ] | |
} | |
multiline { | |
pattern => "^\s+|^\t\s+" | |
what => "previous" | |
} | |
mutate { | |
remove_field => [ "msg", "datetime" ] | |
remove_tag => [ "multiline" ] | |
} | |
grok { | |
match => [ "message", "rule (?<rule>.*)\(.*\): (?<action>pass|block) (?<direction>in|out).* on (?<iface>.*): .* proto (?<proto>TCP|UDP|IGMP|ICMP) .*\n\s*(?<src_ip>(\d+\.\d+\.\d+\.\d+))\.?(?<src_port>(\d*)) [<|>] (?<dest_ip>(\d+\.\d+\.\d+\.\d+))\.?(?<dest_port>(\d*)):" ] | |
} | |
if [prog] =~ /^dhcpd$/ { | |
if [message] =~ /^DHCPACK|^DHCPREQUEST|^DHCPOFFER/ { | |
grok { | |
match => [ "message", "(?<action>.*) (on|for|to) (?<src_ip>[0-2]?[0-9]?[0-9]\.[0-2]?[0-9]?[0-9]\.[0-2]?[0-9]?[0-9]\.[0-2]?[0-9]?[0-9]) .*(?<mac_address>[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]).* via (?<iface>.*)" ] | |
} | |
} | |
if [message] =~ /^DHCPDISCOVER/ { | |
grok { | |
match => [ "message", "(?<action>.*) from (?<mac_address>[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]).* via (?<iface>.*)" ] | |
} | |
} | |
if [message] =~ /^DHCPINFORM/ { | |
grok { | |
match => [ "message", "(?<action>.*) from (?<src_ip>.*).* via (?<iface>.*)" ] | |
} | |
} | |
} | |
} | |
geoip { | |
database => "/opt/logstash/vendor/geoip/GeoLiteCity.dat" | |
add_tag => [ "GeoIP" ] | |
source => "src_ip" | |
} | |
} | |
output { | |
elasticsearch { host => localhost } | |
stdout { codec => rubydebug } | |
} |
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