How to configure SNMP on a Linux system

Configure SNMP on Debian or Ubuntu

To install the SNMP agent (SNMPD) on a Debian based system, run the following command:

The code is as follows:

root@server:~# Apt-get Install SNMPD

Then, edit the configuration file as follows.

The code is as follows:

root@server:~# vim/etc/snmp/snmpd.conf

# Make SNMPD listen and all the interfaces

Agentaddress udp:161

# define a read-only community ' mycommunity ' and the source network

Rocommunity mycommunity 172.17.1.0/24

Syslocation Earth

Syscontact Email@domain.tld

After editing the configuration file, restart the snmpd.

The code is as follows:

root@server:~# Service SNMPD Restart

Configuring SNMP on CentOS or Rhel

To install the SNMP tools and libraries, run the following command.

The code is as follows:

root@server:~# sudo yum install Net-snmp

Then, edit the SNMP configuration file as follows.

The code is as follows:

root@server:~# vim/etc/snmp/snmpd.conf

# define a user ' myuser ' that uses the Community ' mycommunity ' and the source network 172.17.1.0/24

Com2sec myuser 172.17.1.0/24 mycommunity

# Add MyUser to ' MyGroup ' group, define group permissions

Group MyGroup v1 MyUser

Group MyGroup v2c MyUser

View all included 1

Access MyGroup "" Any noauth exact all none

root@server:~# Service SNMPD Restart

root@server:~# Chkconfig snmpd on

Restart the SNMPD service and add it to the Startup services list.

Testing SNMP

SNMP can be tested by running the Snmpwalk command. If SNMP has been configured successfully, this command generates a large amount of output.

The code is as follows:

root@server:~# snmpwalk-c mycommunity 172.17.1.44-v1

iso.3.6.1.2.1.1.1.0 = STRING: "Linux mrtg 3.5.0-17-generic #28-ubuntu SMP Tue Oct 9 19:31:23 UTC \ x86_64"

iso.3.6.1.2.1.1.2.0 = oid:iso.3.6.1.4.1.8072.3.2.10

iso.3.6.1.2.1.1.3.0 = timeticks: (2097) 0:00:20.97

~ ~ Output Truncated ~ ~

iso.3.6.1.2.1.92.1.1.2.0 = gauge32:1440

iso.3.6.1.2.1.92.1.2.1.0 = Counter32:1

iso.3.6.1.2.1.92.1.2.2.0 = counter32:0

iso.3.6.1.2.1.92.1.3.1.1.2.7.100.101.102.97.117.108.116.1 = timeticks: (1) 0:00:00.01

iso.3.6.1.2.1.92.1.3.1.1.3.7.100.101.102.97.117.108.116.1 = hex-string:07 DD 0B 2B 06 00