nmap IP block and autogenerate comprehensive Nagios service checks

nmap -sS -O -oX /tmp/nmap.xml 10.1.1.0/24 -v -v && perl nmap2nagios.pl -v -r /tmp/10net.xml -o /etc/nagios/10net.cfg

6
By: scubacuda
2009-02-19 18:42:37

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  • the command for the impatient sysadmin: simply checks every five secs, if a host or a specific service running on it is up. ideal for hosts that are configured not to respond on pings. Show Sample Output


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    flokra · 2009-08-14 20:19:59 0
  • use w/ check_freshness. passes the last line of output and exit code to nagios via nsca


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    CMD="${1}"; LOG="${2}"; N_HOST="${3}"; N_SERVICE="${4}"; ${CMD} >${LOG} 2>&1; EXITSTAT=${?}; OUTPUT="$(tail -1 ${LOG})";echo "${HOSTNAME}:${N_SERVICE}:${EXITSTAT}:${OUTPUT}" | send_nsca -H ${N_HOST} -d : -c /etc/nagios/send_nsca.cfg >/dev/null 2>&1
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    grep current_state= /var/log/nagios/status.dat|sort|uniq -c|sed -e "s/[\t ]*\([0-9]*\).*current_state=\([0-9]*\)/\2:\1/"|tr "\n" " "
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  • nmap for windows and other platforms is available on developer's site: http://nmap.org/download.html nmap is robust tool with many options and has various output modes - is the best (imho) tool out there.. from nmap 5.21 man page: -oN/-oX/-oS/-oG : Output scan in normal, XML, s| Show Sample Output


    6
    nmap -v -sP 192.168.0.0/16 10.0.0.0/8
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What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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