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__________ Linux base tools (snmp base) (created by me) __________ Windows base tools (snmp base) (created by me) __________ MRTG and rrdtool installation (over linux) __________
MRTG and rrdtoold installation (over windows) __________ Nagios Network Monitoring (best of the best tool to monitor 10000... thousands of nodes / services) __________ Command tools (Linux base) __________ Command tools (Windows base) __________ __________
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this configuration is working fine on my live servers. INSTALLING MRTG: - (Fedora Core2 / Redhat 8)
Download MRTG latest RPM
Use
MRTG's cfgmaker
command to create a configuration file named mrtg.cfg (or any name you want, be sure its extension should
be .cfg ) for the your machine (server)
using a Read Only SNMP community string of myserver.
Place all data files in the directory /var/www/mrtg. (or any directory where you have your web) [root@mainserver
tmp]# cfgmaker --output=/etc/mrtg/mrtg.cfg --global "workdir:/var/www/mrtg"
-fref=ip \ --global
'options[_]: growright,bits' myserver@localhost
... ... --base:
Walking ifAdminStatus Note:
Using
the -ifref=ip
cfgmaker
command option instructs MRTG to use the interface's IP address as the
title for each graph. Unfortunately, this causes errors when Fedora Core
1 polls another Fedora Core 1 server; the errors prevent the graphs from
being created correctly. You can avoid this problem by removing the
option to get graph titles using the much less recognizable MAC address
of the interface. Troubleshooting
Tip:
As explained in the SNMP section, there are different versions of SNMP.
If your query doesn't work, check to make sure you are using the
required version and then check other SNMP configuration parameters on
the target device. You can specify MRTG's SNMP query version with the --snmp-options cfgmaker option.
Here is an example of cfgmaker using an SNMP version 2 query of a router with an IP address of
192.168.1.3. The --snmp-options option's five colons before the 2 are important. [root@mainserver
tmp]# cfgmaker --output=/etc/mrtg/192.168.1.3.cfg -ifref=ip --global
"workdir: var/www/mrtg" \ --snmp-options=:::::2
craz33guy@192.168.1.3 2.
Edit /etc/mrtg/mrtg.cfg,
and remove the sections related to interfaces you don't need to monitor.
A certain candidate would be the virtual loopback interface Lo:
(with the IP address of 127.0.0.1), which doesn't pass any network
traffic at all. 3.
Run MRTG
using /etc/mrtg/mrtg.cfg
as your argument three times. You'll get an error the two times as MRTG
tries to move old data files, and naturally, the first time it is run,
MRTG has no data files to move. [root@mainserver
tmp]# env LANG=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg 4.
Use
MRTG's indexmaker
command to create a Web index page using your new mrtg.cfg file as a guide. The MRTG Web GUI expects to find
the index file in the default MRTG Web directory of /var/www/mrtg/,
so the format of the command would be. [root@mainserver
tmp]# indexmaker --output=/var/www/mrtg/index.html \ /etc/mrtg/mrtg.cfg 5.
MRTG is
run every five minutes by default, and the file that governs this is /etc/cron.d/mrtg.
For MRTG to work correctly, edit this file, replacing all occurrences of
/usr/bin/mrtg
with env
LANG=C
/usr/bin/mrtg.
The explanation for changing the language character set for MRTG is
given in the "Troubleshooting MRTG" section. This
isn't all, you need to view the graphs too. This will be covered later,
but first I'll show you how to poll multiple devices. How change MRTG Graph page background colors and Graph colors: -
To change MRTG graph page color and its page background color,
you just have to do these small steps. To change MRTG main index.html page color. $ pico /your/mrtg/index/page/location/index.html (change “bgcolor” here from 000000 to any color
you want) To change MRTG graph color, your have to find
MRTG_lib.pm file in your system. To find MRTG_lib.pm file use this command. $ locate MRTG_lib.pm (here it shows the location of this file) (if your
system didn’t show its location and come again on root prompt then you
have to update your system file database, to do this use this command) $ updatedb (this command will take little or more time to manage
your system database, after this again find MRTG_lib.pm file location) now open MRTG_lib.pm file in your favorite text
editor. eg. $ pico /usr/lib/mrtg2/MRTG_lib.pm In this file you can change MRTG graph color and its
page background color. Find these lines and change color what ever you want.
("GREEN","#FF6600",
"BLUE","#447700",
"DARK GREEN","#005599",
"MAGENTA","#ff00ff",
"AMBER","#ef9f4f"); AND
("GREEN","#FF6600",
"BLUE","#447700",
"DARK GREEN","#005599",
"MAGENTA","#ff0044"); INSTALLATION
OF RRD TOOL
cd
/usr/local/src wget
http://people.ee.ethz.ch/~oetiker/webtools/rrdtool/pub/rrdtool-1.0.45.tar.gz tar
zxvf rrdtool-1.0.45.tar.gz cd
rrdtool-1.0.45 sh
configure make make
install make site-perl-install
mkdir /var/lib/rrd
mkdir /var/www/html/rrdtool
Changing CGFMAKER:- Changing cfgmaker to get Target: names we set in our routers and Switches.
[root@myserver]# cp /usr/bin/cfgmaker /usr/bin/cfgmakertest
Now do a little change in your newly created "cfgmakertest" file.
Open your newly created "cfgmakertest" file with your favorite text editor.
find below mention this line .
my $default_setenv_directive = "SetEnv[$target_name]: MRTG_INT_IP=\"$if_ip\" MRTG_INT_DESCR=\"$if_snmp_descr\"";
Now do a little change in this line. Just change word a red mark word with $if_name, $if_snmp_alias Now your line looks like this.
my $default_setenv_directive = "SetEnv[$target_name]: MRTG_INT_IP=\"$if_ip\" MRTG_INT_DESCR=\"$if_name,$if_snmp_alias\"";
Now create a cfg file of your Router or Switch for "routers2.cgi" and you will see a change in its Target List. Hip Hip Hurrrrrryyy, Your TARGETS field have interface name and their description which you add in your Router/ Switch configuration. |
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