Difference between revisions of "Nagios"
From Briki
(Created page with '== Change default start page == Edit ''/usr/share/nagios3/htdocs/index.html'' and change: <pre> <FRAME SRC="main.html" NAME="main"> </pre> to <pre> <FRAME SRC="/cgi-bin/nagios3/s…') |
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<FRAME SRC="/cgi-bin/nagios3/status.cgi?host=all" NAME="main"> | <FRAME SRC="/cgi-bin/nagios3/status.cgi?host=all" NAME="main"> | ||
</pre> | </pre> | ||
| + | |||
| + | == Enabling external commands == | ||
| + | From ''/usr/share/doc/nagios3-common/README.Debian'': | ||
| + | <pre> | ||
| + | Nagios 3 is not configured to look for external commands in the | ||
| + | default configuration as a security feature. To enable external | ||
| + | commands, you need to allow the web server write access to the | ||
| + | nagios command pipe. the simplest way of doing this is to | ||
| + | set check_external_commands=1 in your nagios configuration, | ||
| + | and then change the permissions in a way which will be maintained | ||
| + | across package upgrades (otherwise dpkg will overwrite your | ||
| + | permission changes). The following is the recommended approach: | ||
| + | |||
| + | - activate external command checks in the nagios configuration. this | ||
| + | can be done by setting check_external_commands=1 in the file | ||
| + | /etc/nagios3/nagios.cfg. | ||
| + | |||
| + | - perform the following commands to change directory permissions and | ||
| + | to make the changes permanent: | ||
| + | |||
| + | /etc/init.d/nagios3 stop | ||
| + | dpkg-statoverride --update --add nagios www-data 2710 /var/lib/nagios3/rw | ||
| + | dpkg-statoverride --update --add nagios nagios 751 /var/lib/nagios3 | ||
| + | /etc/init.d/nagios3 start | ||
| + | </pre> | ||
| + | |||
| + | == Creating a MySQL user for monitoring == | ||
| + | Locally: | ||
| + | <pre> | ||
| + | GRANT USAGE ON *.* TO 'nagios'@'localhost' | ||
| + | </pre> | ||
| + | Remotely: | ||
| + | <pre> | ||
| + | GRANT USAGE ON *.* TO 'nagios'@'%' | ||
| + | </pre> | ||
| + | |||
| + | == NagiosGrapher == | ||
| + | === Initial setup === | ||
| + | * Ensure that ''/etc/nagiosgrapher/ngraph.ncfg'':'''step''' matches the ''normal_check_interval'' for your services in nagios (otherwise you'll get blank graphs since nagios isn't supplying data often enough) | ||
| + | |||
| + | === Changing default refresh interval === | ||
| + | * Edit ''/usr/share/perl5/NagiosGrapher/HTML.pm'' and change the refresh value in DEFAULTS (there may be a better way to do this via config, but I haven't found it). | ||
Latest revision as of 18:05, 1 February 2010
Contents
Change default start page
Edit /usr/share/nagios3/htdocs/index.html and change:
<FRAME SRC="main.html" NAME="main">
to
<FRAME SRC="/cgi-bin/nagios3/status.cgi?host=all" NAME="main">
Enabling external commands
From /usr/share/doc/nagios3-common/README.Debian:
Nagios 3 is not configured to look for external commands in the default configuration as a security feature. To enable external commands, you need to allow the web server write access to the nagios command pipe. the simplest way of doing this is to set check_external_commands=1 in your nagios configuration, and then change the permissions in a way which will be maintained across package upgrades (otherwise dpkg will overwrite your permission changes). The following is the recommended approach: - activate external command checks in the nagios configuration. this can be done by setting check_external_commands=1 in the file /etc/nagios3/nagios.cfg. - perform the following commands to change directory permissions and to make the changes permanent: /etc/init.d/nagios3 stop dpkg-statoverride --update --add nagios www-data 2710 /var/lib/nagios3/rw dpkg-statoverride --update --add nagios nagios 751 /var/lib/nagios3 /etc/init.d/nagios3 start
Creating a MySQL user for monitoring
Locally:
GRANT USAGE ON *.* TO 'nagios'@'localhost'
Remotely:
GRANT USAGE ON *.* TO 'nagios'@'%'
NagiosGrapher
Initial setup
- Ensure that /etc/nagiosgrapher/ngraph.ncfg:step matches the normal_check_interval for your services in nagios (otherwise you'll get blank graphs since nagios isn't supplying data often enough)
Changing default refresh interval
- Edit /usr/share/perl5/NagiosGrapher/HTML.pm and change the refresh value in DEFAULTS (there may be a better way to do this via config, but I haven't found it).
