CentOS 6
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Cacti : Add Monitoring Target Host2015/03/05

Add Monitoring Target Host on the network.
[1] Install SNMP on the target host you'd like to monitor.
[root@node01 ~]#
yum -y install net-snmp net-snmp-utils
[root@node01 ~]#
vi /etc/snmp/snmpd.conf
# line 41: comment out

com2sec notConfigUser   default       public
# line 74,75: uncomment and change

# change "mynetwork" to your own network

# change comunity name to anyone except public, private (for security reason)

com2sec local

com2sec mynetwork
# 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

# line 323: uncomment

disk / 10000
[root@node01 ~]#
/etc/rc.d/init.d/snmpd start

Starting snmpd: [ OK ]
[root@node01 ~]#
chkconfig snmpd on
# validation (replace "Serverworld" to the comunity name you set)

[root@node01 ~]#
snmpwalk -v2c -c Serverworld localhost system

SNMPv2-MIB::sysDescr.0 = STRING: Linux dlp.srv.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
[2] Login to Cacti admin site and click "Devices" on the left menu.
[3] Click "Add" in the right pane.
[4] Input items like follows and click "Create" button.
Description ⇒ simply description
Hostname ⇒ target's hostname or IP address
Host Template ⇒ ucd/net SNMP Host
SNMP Comunity ⇒ the comunity name you set in [1]
[5] After saving settings, click "Graph Trees" on the left menu and click "Default Tree" in the right pane.
[6] Click "Add" in the right pane.
[7] Select "Host" in "Tree Item Type" field and select target Host in "Host" field and then click "Create" button.
[8] Click "Save" button.
[9] Click "New Graphs" on the left menu and select graphs you'd like to add in the right pane and then click "Create" button.
[10] After few minutes later, move to the "graphs" tab to view the system status to select the new target host on the left menu like follows.
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