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[HowTo] Get some nice Server graphs with Munin - Printable Version

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[HowTo] Get some nice Server graphs with Munin - BeNe - 03-28-2007 11:16 PM

Hello everybody,

with Omega you have a perfect tool to manage your Resellers and Customers on your Server.
It is easy and good to handle.
Sometimes it is also good to know, what your Machine does.
I mean CPU Load, Memory usage, Traffic, Mailtraffic, MySQL Stats and so on.

On Linux system is it very easy to make some nice Graphs about these.
And every Sysadmin love Graphs Wink

1.) Installation

First at all we need a Debian System, like Sarge or Etch.
We install munin with apt-get:

Code:
#apt-get install munin munin-node

2.) Configuration

After installation we must configure munin.

Code:
#vi /etc/munin/munin-node.conf
change host * to host 127.0.0.1

3.) Restart munin to bring the effect.
Code:
/etc/init.d/munin-node restart

4.) Bring munin and apache together

Munin is automatic creating a Directory under "/var/www/munin"
and set a cronjob that every 5min generate new graphs.
The only thing that we have to do, is to set this path in the Apache config. Here we need to create a new file under "/etc/apache2/sites-enabled/munin.conf"

Code:
#vi /etc/apache2/sites-enabled/munin.conf

Put this code in here:
Code:
Alias /munin "/var/www/munin"

<Directory /usr/lib/cgi-bin/awstats>
   AllowOverride AuthConfig
  Options FollowSymLinks ExecCGI
</Directory>

Restart Apache to bring the effect:

Code:
/etc/init.d/apache2 restart

6.) Check it

Now open a new Browser-Tab and check Munin:
Code:
http://www.your-domain.tld/munin

You should see something like this:
[Image: muninoverviewjt9.th.png]
[Image: muninethtrafficra5.th.png][Image: muninmemdayqn9.th.png]

7.) .htaccess

To make it more secure, you can put a .htaccess in the directory.
Code:
#vi /var/www/munin/.htpasswd

Contents :
Code:
USERNAME:iqhCaA/JBcng.
(Password can generated here under "Kennwort")

Create a .htaccess
Code:
#vi /var/www/munin/.htaccess

Contents:
Code:
AuthType Basic
AuthName "Munin Graphs"
AuthUserFile /var/www/munin/.htpasswd
require user USERNAME

8.) Put it in your VHCS Menu

Log in as Admin -> Settings -> Custom Menus

Button name : munin
Button link : http://www.your-domain.tld/munin
Button target: http://www.your-domain.tld/munin
Show in: Administrator Level (or change it if you want)
Save.

Dont forget to wait 5min for the first Graphs Wink

Here are some Munin directories:
--------------------------------------------------------
# The Munin-Directory for Data
dbdir /var/lib/munin

# Munin -Directory for generated Websites
htmldir /var/www/munin

# The Munin logfiles
logdir /var/log/munin

# Temporary run files (pid file etc)
rundir /var/run/munin

# HTML Templates for the Munin Layout
tmpldir /etc/munin/templates

#Munin Plugin Direcotry
/usr/share/munin/plugins
-----------------------------------------------------------

Greez BeNe

RE: [HowTo] Get some nice Server graphs with Munin - BioALIEN - 03-29-2007 02:10 AM

Great HowTo. This is the exact reason why I want you to run the FAQ section Smile
You can also install phpsysinfo (PHP) open source project to get a good overview and stats.

Thanks and I look forward to seeing more HowTos in the future.

RE: [HowTo] Get some nice Server graphs with Munin - soringo - 03-29-2007 07:07 PM

Amazing....that's so ..... great !!!

I've used CACTI for a long time but this is so easy...you dont need any special skills.

RE: [HowTo] Get some nice Server graphs with Munin - BeNe - 05-30-2007 06:23 PM

I added this to the Wiki --> http://www.isp-control.net/ispcp/wiki/howto_munin

RE: [HowTo] Get some nice Server graphs with Munin - MrLight - 05-30-2007 07:30 PM

Great Work.

Maybe to ad this feacher in 1.1.0?

Mr Light :-)

RE: [HowTo] Get some nice Server graphs with Munin - BeNe - 05-30-2007 07:38 PM

We have allready discuss about it.
There are also some other good Programms on the web with much more
functions than only display graphs. We will see.

RE: [HowTo] Get some nice Server graphs with Munin - Janko - 06-13-2007 03:20 PM

hi all,

how can i add more server to one overview ?

thanks for your answer Wink

greeds
sebastian

RE: [HowTo] Get some nice Server graphs with Munin - BeNe - 06-13-2007 03:39 PM

You can Munin only use on the localhost.
For your needs check 'cacti'

RE: [HowTo] Get some nice Server graphs with Munin - BarthezZ - 06-14-2007 07:08 AM

For some strange reason i'm not getting any graphs... just empty docs and some menu structure :x
debian sarge

RE: [HowTo] Get some nice Server graphs with Munin - ephigenie - 06-14-2007 05:41 PM

however in fact you can munin run on more than one node and send the results to one central host.