http://www.server-world.info/en/note?os=CentOS_6&p=mrtg
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Install MRTG (Multi Router Traffic Grapher) to see network traffic data on the web.
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| [1] | |
| [2] | Install MRTG, SNMP. |
| [root@dlp ~]#
yum -y install net-snmp net-snmp-utils mrtg
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| [3] | Configure SNMP (Simple Network Management Protocol). |
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[root@dlp ~]#
vi /etc/snmp/snmpd.conf
# line 41: comment out
#
com2sec notConfigUser default public # line 74,75: uncomment and change
# change to your local network for “mynetwork” section
# change comunity name except public or private
com2sec local localhost
Serverworld
com2sec mynetwork 10.0.0.0/24
Serverworld
# line 78,79: uncomment
group MyRWGroup any local group MyROGroup any mynetwork # line 85: uncomment
view all included .1 80 # line 93,94: uncomment
access MyROGroup "" any noauth 0 all none none access MyRWGroup "" any noauth 0 all all all # show status (replace the “Serverworld” to your comunity name)
[root@dlp ~]# snmpwalk -v2c -c Serverworld localhost system
SNMPv2-MIB::sysDescr.0 = STRING: Linux dlp.server.world 2.6.32-504.3.3.el6.x86_64 #1 SMP Wed Dec 17 01:55:02 UTC 2014 x86_64 SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (168142) 0:28:01.42 ... ... SNMPv2-MIB::sysORUpTime.7 = Timeticks: (4) 0:00:00.04 SNMPv2-MIB::sysORUpTime.8 = Timeticks: (4) 0:00:00.04 |
| [4] | Configure MRTG. |
| [root@dlp ~]#
cfgmaker –ifref=descr –ifdesc=descr Serverworld@10.0.0.30 > /etc/mrtg/mrtg.cfg
[root@dlp ~]#
vi /etc/mrtg/mrtg.cfg
# line 9: add
WorkDir: /var/www/mrtg # line 16: uncomment
Options[_]: growright, bits # near line 73: make sure lines like follows are uncommented
Target[10.0.0.30_eth0]: eth0:Serverworld@10.0.0.30: # execute mrtg 3 times (display warnings until 3 times)
[root@dlp ~]# for (( i=1 ; i <= 3 ; i++ )); do env LANG=C mrtg /etc/mrtg/mrtg.cfg; done
2015-01-25 21:33:23, Rateup WARNING: /usr/bin/rateup could not read the primary log file for 10.0.0.30_eth0 # generate index file
[root@dlp ~]# indexmaker –columns=1 /etc/mrtg/mrtg.cfg > /var/www/mrtg/index.html
# updating is done automatically by cron
[root@dlp ~]# cat /etc/cron.d/mrtg
*/5 * * * * root LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg –lock-file /var/lock/mrtg/mrtg_l –confcache-file /var/lib/mrtg/mrtg.ok |
| [5] | Configure httpd to access MRTG. |
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[root@dlp ~]#
vi /etc/httpd/conf.d/mrtg.conf
# line 11: add IP address you allow to access
Allow from 127.0.0.1 10.0.0.0/24
[root@dlp ~]# /etc/rc.d/init.d/httpd restart
Stopping httpd: [ OK ] Starting httpd: [ OK ] |
| [6] | Access to the “http://(MRTG hostname or IP address)/mrtg/” from a client with HTTP, then it’s possible to see MRTG site. |
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