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https://github.com/Ponce/slackbuilds
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130 lines
3.6 KiB
Text
130 lines
3.6 KiB
Text
README.Slackware
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================
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This file contains some basic instructions to get nagios installed and
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running on your computer.
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0) Before running the SlackBuild Script
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---------------------------------------
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0.1) Create nagios group & user
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Before even running the SlackBuild script, create the necessary 'nagios'
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user and group. The SlackBuild script will remind you if these do not exist.
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The suggested UID and GID is 213, but you can change this as needed:
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# groupadd -g 213 nagios
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# useradd -u 213 -d /var/nagios -s /bin/bash -g nagios nagios
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0.2) Add 'apache' to 'nagios' group
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For several nagios scripts to run without problems, you need to add the
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'apache' user to the 'nagios' group, so that it can write to the
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/var/nagios/rw directory:
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# usermod -G nagios apache
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0.3) Select DOCROOT
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The standard SlackBuild script puts the nagios files in /var/www/htdocs
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This is fine for a stock Slackware installation, but if your 'DOCROOT'
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lives in another directory, you can specify it when starting the SlackBuild
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script like this:
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# DOCROOT=/your/docroot/dir ./nagios.SlackBuild
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1) Post-installation
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--------------------
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After building & installing the nagios package, there are some additional
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steps to take.
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1.1) Check /etc/nagios/nagios.cfg & /etc/nagios/cgi.cfg
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These are the basic configuration files for the nagios server. Do read the
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documentation to understand what all the different settings mean.
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1.2) Edit /etc/httpd/extra/nagios.conf
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To be able to view the documentation, edit this file.
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After the "<Directory "/var/www/htdocs/nagios">" line, change:
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Options None
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to read:
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Options FollowSymLinks
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1.3) Edit /etc/httpd/httpd.conf
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Now you need to add the extra/nagios.conf file as an included file. To
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accomplish this, after the "DocumentRoot /srv/httpd/htdocs" line, add:
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Include /etc/httpd/extra/nagios.conf
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1.4) Create access file
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The /etc/httpd/extra/nagios.conf file defines /etc/nagios/htpasswd.users
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as the file with the authorized users.
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To create this file with a standard user called 'nagiosadmin', type:
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# htpasswd -c /etc/nagios/htpasswd.users nagiosadmin
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then type the password you choose twice.
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To add other users, delete users, etc., check the man page for htpasswd:
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# man htpasswd
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1.5) Restart httpd
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# /etc/rc.d/rc.httpd restart
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1.6) Put startup command in /etc/rc.d/rc.local:
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# Start nagios:
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if [ -x /etc/rc.d/rc.nagios ]; then
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echo "Starting nagios..."
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/etc/rc.d/rc.nagios start
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fi
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1.7) Put shutdown command in /etc/rc.d/rc.local_shutdown:
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# Stop nagios:
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if [ -x /etc/rc.d/rc.nagios ]; then
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echo "Stopping nagios..."
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/etc/rc.d/rc.nagios stop
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fi
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1.8) Make /etc/rc.d/rc.nagios executable:
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# chmod +x /etc/rc.d/rc.nagios
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1.9) Start nagios:
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# /etc/rc.d/rc.nagios start
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2) Adding hosts, routers, switches, etc.
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----------------------------------------
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Lot of documentation is included in this package and should be read to fully
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understand how to add hosts, routers, switches, etc.
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To add functionality, build & install the nagios-plugins on your server.
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To monitor external Linux hosts, install the nrpe package on them, together
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with the nagios-plugins.
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To monitor Windows hosts, install NSClient++ on them.
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Do check the http://wiki.nagios.org pages for some useful information.
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3) Growing log files
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--------------------
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If you are monitoring several items, your log files can grow considerably.
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Nagios keeps a history of all logs in /var/nagios/archives/.
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After a few months this can be quite a bit of information, so consider
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creating some kind of clean-up or compacting script (Left as an exercise to
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the reader :) )
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