Cacti
From ArchWiki
This article describes how to set up Cacti on an Arch Linux system. Cacti is a web-based system monitoring and graphing solution.
Contents |
Server Setup
This article assumes that you already have a working LAMP (Linux, Apache, MySQL, PHP) server. If you don't have a web-server set up already, you can follow these instructions to do so.
Cacti Setup
The following should all be performed as root.
- Install the necessary programs
# pacman -S cacti php-snmp
- Edit /etc/php/php.ini
- Uncomment the following lines:
;extension=mysql.so ;extension=sockets.so ;extension=snmp.so
- Comment the following line:
open_basedir=...
- Start mysqld and snmpd if they're not already running:
# /etc/rc.d/mysqld start # /etc/rc.d/snmpd start
- Add mysqld and snmdp to the DAEMONS array in /etc/rc.conf to ensure that they're running at bootup
- Edit /etc/http/conf/httpd.conf
- Inside the <Directory "/srv/http"> block, ensure that you have the following line:
AllowOverride All
- MySQL setup
- Create the cacti database, load the tables, and set the user. You will be asked for the MySQL root password for each of these commands.
# mysqladmin -u root -p create cacti # mysql -u root -p cacti < /srv/http/cacti/cacti.sql # mysql -u root -p mysql> GRANT ALL ON cacti.* TO cacti@localhost IDENTIFIED BY 'some_password'; mysql> FLUSH PRIVILEGES; mysql> exit
- Edit /srv/http/cacti/include/config.php. The password was specified in the previous step.
$database_username = "cacti"; $database_password = "some_password";
- Clean up cacti directory
# chown -R http:http /srv/http/cacti/{rra,log} # rm /srv/http/cacti/.htaccess # chmod +x /srv/http/cacti/{cmd,poller}.php /srv/http/cacti/lib/ping.php
- (Optional) Install spine, a faster poller for cacti, from AUR. Use the same password as in previous steps.
# yaourt -S cacti-spine
- Edit /etc/spine.conf
DB_User cacti DB_Pass some_password
- Set up cron job to run poller every 5 minutes
# crontab -e
- Add the following to the end of the list
*/5 * * * * /usr/bin/sudo -u http /usr/bin/php /srv/http/cacti/poller.php > /dev/null 2>&1
- Restart cron and apache
# /etc/rc.d/crond restart # /etc/rc.d/httpd restart
Web Configuration
Open up a browser and go to http://your_ip/cacti. You should be welcomed with the cacti installer.
- Click Next
- Select New Install and click Next
- Ensure that all paths are ok. For RRDTool Utility Version, select RRDTool 1.3.x. Click Finish.
- If any paths are invalid, you'll need to figure out why. Check the apache error logs for hints.
- Login with username "admin" and password "admin".
- Change the password as requested, click Save.
- (Optional) If you chose to install spine, follow these instructions to set it up.
- Click on Settings, on the left panel of the Console tab.
- Select the Poller tab.
- Change Poller Type to spine.
- Adjust any other settings on the page as desired, then click Save.
- Select the Paths tab.
- Set Spine Poller File Path to /usr/bin/spine and click Save.
See Also
- LAMP - Set up a LAMP server