1. Download RPMForge Package. Check your system with uname -a command to get the suitable package. Below is the current one I got :
32-bit system
wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el5.rf.i386.rpm
64-bit system
wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el5.rf.x86_64.rpm
If you want to check for the latest one, check it from -> http://packages.sw.be/
My instruction will base on x86_64 package.
2. Install GPG Key for DAG
rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt
3. Verify the package
rpm -K rpmforge-release-0.5.2-2.el5.rf.x86_64.rpm
4. After verification, install RPMForge package.
rpm -i rpmforge-release-0.5.2-2.el5.rf.x86_64.rpm
5. Run command below : Basically, it will install Munin, set it to run at startup, start munin, create folder for munin to access through the web. (You can just copy and paste into your SSH)
yum install munin munin-node chkconfig –levels 235 munin-node on /etc/init.d/munin-node start chown -R munin:munin /var/www/munin ln -s /var/www/munin /var/www/html/munin service httpd restart && service crond restart
That's it. You may also want to protect your munin directory so that no one without password will not be able to access. What you have to do is
6. Create .htaccess file in munin Directory
nano /var/www/html/munin/.htaccess
In that file, put the text below :
AuthType Basic AuthName "Members Only" AuthUserFile /var/www/munin/.htpasswd <limit GET PUT POST> require valid-user </limit>
Then, save it.
7. Create .htpasswd file contains username and password to allow to access your munin (Here munin-admin is a username)
htpasswd -c /var/www/munin/.htpasswd munin-admin
Then enter your password and that's it. Alternatively, if you don't have htpasswd program on your server, you can just create .htpasswd file and put username and password in it. The password has to be encoded in MD5 format. (You can google and find any htpasswd generator. The format will be :
username:password
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Troubleshoot : If there is no graph and you see /var/log/munin/munin-html.log like below
Jul 24 11:50:10 - processing domain: localhost Jul 24 11:50:10 - processing node: localhost Jul 24 11:50:10 - processing service: apache_accesses Jul 24 11:55:11 - Starting munin-html, checking lock Jul 24 11:55:11 - could not copy style.css into htmldir Jul 24 11:55:11 - could not copy logo.png into htmldir Jul 24 11:55:11 - could not copy definitions.html into htmldir Jul 24 11:55:11 - processing domain: localhost Jul 24 11:55:11 - processing node: localhost Jul 24 11:55:11 - processing service: apache_accesses
or error in /var/log/munin/munin-graph.log
Jul 24 11:55:11 - Unable to graph /var/lib/munin/localhost/localhost-ntp_clock_nectec_or_th-jitter-g.rrd: Could not save png to '/var/www/munin/localhost/localhost-ntp_clock_nectec_or_th-year.png' Jul 24 11:55:11 - Graphed service : ntp_clock_nectec_or_th (0.08 sec * 4) Jul 24 11:55:11 - Unable to graph /var/lib/munin/localhost/localhost-vmstat-sleep-g.rrd: Could not save png to '/var/www/munin/localhost/localhost-vmstat-month.png' Jul 24 11:55:11 - Unable to graph /var/lib/munin/localhost/localhost-vmstat-sleep-g.rrd: Could not save png to '/var/www/munin/localhost/localhost-vmstat-week.png' Jul 24 11:55:11 - Unable to graph /var/lib/munin/localhost/localhost-vmstat-sleep-g.rrd: Could not save png to '/var/www/munin/localhost/localhost-vmstat-day.png' Jul 24 11:55:11 - Unable to graph /var/lib/munin/localhost/localhost-vmstat-sleep-g.rrd: Could not save png to '/var/www/munin/localhost/localhost-vmstat-year.png' Jul 24 11:55:11 - Graphed service : vmstat (0.07 sec * 4) Jul 24 11:55:11 - Processed node: localhost (2.94 sec) Jul 24 11:55:11 - Processed domain: localhost (2.94 sec) Jul 24 11:55:11 - Munin-graph finished (2.95 sec)
Then, check ownership of your munin file and directory. I got the problem with a directory (www) above munin directory. Original is :
dr-xr-x--- 10 webapps apache 4096 Jul 25 13:54 www
I, then, have to chmod 755 /var/www to make it work. After I chmod it, below is what it will look like :
drwxr-xr-x 10 webapps apache 4096 Jul 25 13:54 www
Update : 2012.12.20 : For Security reason, chmod 551 /var/www to make it work. After I chmod it, below is what it will look like :
dr-xr-x--x 9 webapps apache 4096 Jun 10 2011 www
Tested with :
1. CentOS 5.6 - 64 bits
2. DirectAdmin 1.39.1 - With Custombuild 1.2
3. PHP 5.3.6
Update : 2011.08.08
You may want to use EPEL repository instead which will give you a newer version of Munin (1.4.5 vs 1.2.x). If you do, then, do the following :
1. Download EPEL repository
wget http://download.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm
2. Install it
rpm -Uvh epel-release-5-4.noarch.rpm
Then, continue with step 5 above.