Last Updated on 10 months by Sachin G
STEP 1: Install EPEL Repository
Click on the below link and install the Epel repository according to your operating system.
Setup EPEL YUM Repositories on CentOS RHEL Fedora Linux
STEP 2: Update Package Repositories:
Make sure your system’s package repositories are up to date by running the following commands:
Here we are creating a basic installation of the apache web server.
STEP 3: Install the Apache web server.
#yum -y install httpd
Start the apache web service.
#systemctl start httpd.service
Enable service on auto boot
#systemctl enable httpd.service
STEP 3 : Install MRTG through YUM
Below command is for mrtg and snmp installation utility and dependency .
# yum -y install net-snmp mrtg net-snmp-utils
STEP 4 : Configure SNMP
For monitor network interface and other resources like CPU , memory , we should configure snmpd “/etc/snmp/snmpd.conf” .
STEP 5 : Edit the configuration file.
# vim /etc/snmp/snmpd.conf
Now make change as i have describe below.
(a) comment the line with hash on line number 41 like below.
# com2sec notConfigUser default public
(b) uncomment the line number 74,75 ,remove NETWORK/24 and replace with your network.
Before changes #com2sec local localhost COMMUNITY #com2sec mynetwork NETWORK/24 COMMUNITY
After Changes com2sec local localhost techtransit com2sec mynetwork 172.24.0.0/24 techtransit
(c) un comment the line 78,79 . Replace techtransit from your any word.
group MyRWGroup v2c local group MyROGroup v2c mynetwork
(d) uncomment the line 85 .
view all included .1 80
(f) uncomment the line 93,94 . Replace techtransit from your name.
access MyROGroup "" v2c noauth 0 all none none access MyRWGroup "" v2c noauth 0 all all all
STEP 6 : Start the snmpd service and enable from autoboot .
#systemctl start snmpd.service #systemctl enable snmpd.service
STEP 7 :
[root@server ~]# snmpwalk -v2c -c techtransit localhost system
SNMPv2-MIB::sysDescr.0 = STRING: Linux server.techtransit.org 3.10.0-229.14.1.el7.x86_64 #1 SMP Tue Sep 15 15:05:51 UTC 2015 x86_64 SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (8004) 0:01:20.04 SNMPv2-MIB::sysContact.0 = STRING: Root <root@localhost> (configure /etc/snmp/snmp.local.conf) SNMPv2-MIB::sysName.0 = STRING: server.techtransit.org SNMPv2-MIB::sysLocation.0 = STRING: Unknown (edit /etc/snmp/snmpd.conf) SNMPv2-MIB::sysORLastChange.0 = Timeticks: (2) 0:00:00.02 SNMPv2-MIB::sysORID.1 = OID: SNMP-MPD-MIB::snmpMPDCompliance SNMPv2-MIB::sysORID.2 = OID: SNMP-USER-BASED-SM-MIB::usmMIBCompliance SNMPv2-MIB::sysORID.3 = OID: SNMP-FRAMEWORK-MIB::snmpFrameworkMIBCompliance SNMPv2-MIB::sysORID.4 = OID: SNMPv2-MIB::snmpMIB SNMPv2-MIB::sysORID.5 = OID: TCP-MIB::tcpMIB SNMPv2-MIB::sysORID.6 = OID: IP-MIB::ip SNMPv2-MIB::sysORID.7 = OID: UDP-MIB::udpMIB SNMPv2-MIB::sysORID.8 = OID: SNMP-VIEW-BASED-ACM-MIB::vacmBasicGroup SNMPv2-MIB::sysORID.9 = OID: SNMP-NOTIFICATION-MIB::snmpNotifyFullCompliance SNMPv2-MIB::sysORID.10 = OID: NOTIFICATION-LOG-MIB::notificationLogMIB SNMPv2-MIB::sysORDescr.1 = STRING: The MIB for Message Processing and Dispatching. SNMPv2-MIB::sysORDescr.2 = STRING: The management information definitions for the SNMP User-based Security Model. SNMPv2-MIB::sysORDescr.3 = STRING: The SNMP Management Architecture MIB. SNMPv2-MIB::sysORDescr.4 = STRING: The MIB module for SNMPv2 entities SNMPv2-MIB::sysORDescr.5 = STRING: The MIB module for managing TCP implementations SNMPv2-MIB::sysORDescr.6 = STRING: The MIB module for managing IP and ICMP implementations SNMPv2-MIB::sysORDescr.7 = STRING: The MIB module for managing UDP implementations SNMPv2-MIB::sysORDescr.8 = STRING: View-based Access Control Model for SNMP. SNMPv2-MIB::sysORDescr.9 = STRING: The MIB modules for managing SNMP Notification, plus filtering. SNMPv2-MIB::sysORDescr.10 = STRING: The MIB module for logging SNMP Notifications. SNMPv2-MIB::sysORUpTime.1 = Timeticks: (2) 0:00:00.02 SNMPv2-MIB::sysORUpTime.2 = Timeticks: (2) 0:00:00.02 SNMPv2-MIB::sysORUpTime.3 = Timeticks: (2) 0:00:00.02 SNMPv2-MIB::sysORUpTime.4 = Timeticks: (2) 0:00:00.02 SNMPv2-MIB::sysORUpTime.5 = Timeticks: (2) 0:00:00.02 SNMPv2-MIB::sysORUpTime.6 = Timeticks: (2) 0:00:00.02 SNMPv2-MIB::sysORUpTime.7 = Timeticks: (2) 0:00:00.02 SNMPv2-MIB::sysORUpTime.8 = Timeticks: (2) 0:00:00.02 SNMPv2-MIB::sysORUpTime.9 = Timeticks: (2) 0:00:00.02 SNMPv2-MIB::sysORUpTime.10 = Timeticks: (2) 0:00:00.02
Creating MRTG Configuration :
Now we will create a configuration file for mrtg data storage, run the command below and output will redirect in the mrtg configuration file.Replace your community name and ip of your server.You can also change WorkDir .
[root@server ~]#cfgmaker --snmp-options=:::::2 --ifref=descr --ifdesc=descr --global 'WorkDir: /var/www/html/mymrtg' [email protected] > /etc/mrtg/mrtg.cfg
If you want the graph data in bits instead of bytes , uncomment the below lines from /etc/mrtg/mrtg.cfg configuration file.
#vim /etc/mrtg/mrtg.cfg Options[_]: growright, bits
Uncomment the below line , which should on line 75 and save and exit from the configuraiton file.
Target[172.24.0.69_eth0]: \eth0:[email protected]:::::2 noHC[172.24.0.69_eth0]: yes SetEnv[172.24.0.69_eth0]: MRTG_INT_IP="172.24.0.69" MRTG_INT_DESCR="eth0" MaxBytes[172.24.0.69_eth0]: 250000000 Title[172.24.0.69_eth0]: eth0 -- server.techtransit.org PageTop[172.24.0.69_eth0]: <h1>eth0 -- server.techtransit.org</h1>
indexmaker --columns=1 /etc/mrtg/mrtg.cfg > /var/www/html/mymrtg/index.html
Now MRTG Configure on apache configuration file.
Edit the mrtg apache configuration file.
#vim /etc/httpd/conf.d/mrtg.conf
Edit the file like below , change the ip with your ip .
Alias /mrtg /var/www/html/mymrtg <Location /var/www/html/mymrtg> Require local Require ip 172.24.0.69 # Require host example.org </Location>
Start Apache :
#systemctl start httpd.service
Now configuration of mrtg has been done and access URL for MRTG Graph will be like below.
http://server-hostname or IP Address/mymrtg
Thank you 🙂
I am a professional freelance contributor and the founder of Tech Transit. I hold certifications in Linux, Ansible, and OpenShift from Red Hat, as well as CPanel and ITIL certifications. With a passion for education, culture, and community, I love writing and sharing knowledge. Since 2009, I’ve been actively using, setting up, supporting, and maintaining Linux systems. Linux truly rocks!