Configure Apache Monitoring With Zabbix
Steps
Enable Status Module
Ensure that the status module is enabled
sudo a2enmod status
Site Configuration
We need to configure Apache to respond with status on the /server-status path, but only when connected to from localhost, rather than our normal website(s).
Thus use the following command to create a site configuration:
sudo editor /etc/apache2/sites-available/localhost.conf
Fill it with the following content:
<VirtualHost 127.0.0.1:80>
ServerName localhost
ServerAdmin webmaster@localhost
<Location /server-status>
SetHandler server-status
Require local
Require ip 127.0.0.1
</Location>
ErrorLog ${APACHE_LOG_DIR}/localhost-status-error.log
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
LogLevel warn
CustomLog ${APACHE_LOG_DIR}/localhost-status-access.log combined
</VirtualHost>
After having done that, enable the site by running:
sudo a2ensite localhost
Config Test
Perform a configuration test to check Apache is okay with everything:
sudo apache2ctl configtest
Restart Apache Service
Run the following command to restart Apache and start using the new config. It shouldn't interfere with your other configs, because it is specific to 127.0.0.1 and requires the connection to be coming from 127.0.0.1.
sudo systemctl reload apache2
Test
Run the following command from the shell on the server to check you can get the status:
wget http://127.0.0.1/server-status
This should result in the creation of a file called server-status with content similar to below (just the first few lines):
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<html><head>
<title>Apache Status</title>
</head><body>
<h1>Apache Server Status for 127.0.0.1 (via 127.0.0.1)</h1>
<dl><dt>Server Version: Apache/2.4.57 (Debian)</dt>
Configure Zabbix Server
We have finished setting up the host, now we need to configure our Zabbix server to try and pull this information using the agent. Simply click on the Host and go to the templates and add Apache by Zabbix agent.
That's it!
References
First published: 13th July 2023
