CentOS 7
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Cacti : Add Monitoring Host
2015/06/16
 
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
localhost
Serverworld

com2sec mynetwork
10.0.0.0/24
Serverworld
# line 78,79: uncomment and change

group MyRWGroup
v2c
    local

group MyROGroup
v2c
    mynetwork
# line 85: uncomment

view all    included  .1                               80

# line 93,94: uncomment and change

access MyROGroup ""
v2c
  noauth  
exact
  all   none   none

access MyRWGroup ""
v2c
  noauth  
exact
  all   all      all
# line 323: uncomment

disk / 10000
[root@node01 ~]#
systemctl start snmpd

[root@node01 ~]#
systemctl enable snmpd
# validation (replace "Serverworld" to the comunity name you set)

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

SNMPv2-MIB::sysDescr.0 = STRING: Linux node01.srv.world 3.10.0-229.4.2.el7.x86_64 #1 SMP Wed May 13.....
SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (3367) 0:00:33.67
SNMPv2-MIB::sysContact.0 = STRING: Root <root@localhost> (configure /etc/snmp/snmp.local.conf)
...
...
SNMPv2-MIB::sysORUpTime.9 = Timeticks: (4) 0:00:00.04
SNMPv2-MIB::sysORUpTime.10 = 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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