Cacti : Add Monitoring Host2016/06/08

	Add Monitoring Target Host on the network.
[1]	Install SNMP on the target host you'd like to monitor.

root@node01:~#

apt-get -y install snmp snmpd snmp-mibs-downloader

root@node01:~#

vi /etc/snmp/snmp.conf

# line 4: comment out

mibs :

root@node01:~#

vi /etc/snmp/snmpd.conf

# line 15: comment out

agentAddress udp:127.0.0.1:161

# line 17: uncomment

agentAddress udp:161,udp6:[::1]:161

# line 49: uncomment and change to any comunity name you like

rocommunity

Serverworld

localhost

# line 51: comment out

rocommunity public default -V systemonly

# line 59: uncomment and change to any comunity name & change access permission

rocommunity

Serverworld 10.0.0.0/24

root@node01:~#

systemctl restart snmpd

# validation (replace "Serverworld" to the comunity name you set)

root@node01:~#

snmpwalk -v 2c -c Serverworld localhost system

SNMPv2-MIB::sysDescr.0 = STRING: Linux node01.srv.world 4.4.0-22-generic 
    #40-Ubuntu SMP Thu May 12 22:03:46 UTC 2016 x86_64
SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (2213) 0:00:22.13
.....
.....
SNMPv2-MIB::sysORUpTime.9 = Timeticks: (1) 0:00:00.01
SNMPv2-MIB::sysORUpTime.10 = Timeticks: (1) 0:00:00.01

[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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