Install SNMP and SNMP Utilities

Installing SNMP and some optional SNMP utilities is as simple as running one command:

yum -y install net-snmp net-snmp-utils

Now, let’s take the default SNMP configuration file, /etc/snmp/snmpd.conf and move it to an alternate location, /etc/snmp/snmpd.conf.orig.

cp /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.orig

And now we’ll create a new /etc/snmp/snmpd.conf:

vi /etc/snmp/snmpd.conf

##### First, map the community name "public" into a "security name"#       sec.name  source          community#com2sec notConfigUser  default      publiccom2sec notConfigUser  192.168.74.0/24      publiccom2sec notConfigUser  192.168.74.0/24      w4ch1dc0nf1gCOmmunity##### Second, map the security name into a group name:#       groupName      securityModel securityNamegroup   notConfigGroup v1           notConfigUsergroup   notConfigGroup v2c           notConfigUser
##### Third, create a view for us to let the group have rights to:
# Make at least  snmpwalk -v 1 localhost -c public system fast again.#       name           incl/excl     subtree         mask(optional)view    systemview    included   .1.3.6.1.2.1.1view    systemview    included   .1.3.6.1.2.1.25.1.1##### Finally, grant the group read-only access to the systemview view.#       group          context sec.model sec.level prefix read   write  notifaccess  notConfigGroup ""      any       noauth    exact  systemview none none# -----------------------------------------------------------------------------

the end