74 lines
2.3 KiB
Bash
Executable File
74 lines
2.3 KiB
Bash
Executable File
#!/bin/sh
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#
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# Plugin to monitor auth.log for sshd server events.
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#
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# Require read permitions for $LOG
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# (set in /etc/munin/plugin-conf.d/munin-node on debian)
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# On busy servers you can change value type to COUNTER and set min to 0 to avoid minus peaks at logrotate
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#
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# $Log$
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# Revision 1.2 2010/03/19 15:03:00 pmoranga
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# Revision 1.1 2009/04/26 23:28:00 ckujau
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# Revision 1.0 2009/04/22 22:00:00 zlati
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# Initial revision
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#
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# Parameters:
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#
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# config (required)
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# autoconf (optional - used by munin-config)
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#
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# Magick markers (optional):
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#%# family=auto
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#%# capabilities=autoconf
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# config example for /etc/munin/plugin-conf.d/munin-node
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#[sshd_log]
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#user root
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#group root
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#env.logfile /var/log/messages
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#env.category users
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#
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LOG=${logfile:-/var/log/secure}
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CATEGORY=${category:-system}
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if [ "$1" = "autoconf" ]; then
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if [ -r "$LOG" ]; then
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echo yes
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exit 0
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else
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echo no
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exit 1
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fi
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fi
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if [ "$1" = "config" ]; then
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echo 'graph_title SSHD login stats from' $LOG
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echo 'graph_args --base 1000 -l 0'
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echo 'graph_vlabel logins'
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echo 'graph_category' $CATEGORY
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echo 'LogPass.label Successful password logins'
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echo 'LogPassPAM.label Successful login via PAM'
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echo 'LogKey.label Successful PublicKey logins'
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echo 'NoID.label No identification from user'
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echo 'rootAttempt.label Root login attempts'
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echo 'InvUsr.label Invalid user login attepmts'
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echo 'NoRDNS.label No reverse DNS for peer'
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echo 'Breakin.label Potential Breakin Attempts'
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exit 0
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fi
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awk 'BEGIN{c["LogPass"]=0;c["LogKey"]=0;c["NoID"]=0;c["rootAttempt"]=0;c["InvUsr"]=0;c["LogPassPAM"]=0;c["Breakin"]=0;c["NoRDNS"]=0; }
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/sshd\[.*Accepted password for/{c["LogPass"]++}
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/sshd\[.*Accepted publickey for/{c["LogKey"]++}
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/sshd\[.*Did not receive identification string/{c["NoID"]++}
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/sshd\[.*Failed password for root/{c["rootAttempt"]++}
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/sshd\[.*Invalid user/{c["InvUsr"]++}
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/sshd\[.*POSSIBLE BREAK-IN ATTEMPT!/{c["Breakin"]++}
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/sshd\[.*keyboard-interactive\/pam/{c["LogPassPAM"]++}
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/sshd\[.*reverse mapping checking getaddrinfo/{c["NoRDNS"]++}a
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END{for(i in c){print i".value " c[i]} }' < $LOG
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