Step By Step Installation of SNMP Service on CentOS 6.5

# yum install net-snmp net-snmp-utils

# mv /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.orig

# vim /etc/snmp/snmpd.conf


com2sec readonly  default         firstcry
group MyROGroup v1         readonly
group MyROGroup v2c        readonly
group MyROGroup usm        readonly
view all    included  .1                               80
access MyROGroup ""      any       noauth    exact  all    none   none
syslocation PUNE, INDIA
syscontact mail@example.com
#This line allows Observium to detect the host OS if the distro script is installed
extend .1.3.6.1.4.1.2021.7890.1 distro /usr/bin/distro

:wq


###  cat /usr/bin/distro   ####

vim  /usr/bin/distro



#!/bin/sh
# Detects which OS and if it is Linux then it will detect which Linux Distribution.

OS=`uname -s`
REV=`uname -r`
MACH=`uname -m`

if [ "${OS}" = "SunOS" ] ; then
  OS=Solaris
  ARCH=`uname -p`
  OSSTR="${OS} ${REV}(${ARCH} `uname -v`)"
elif [ "${OS}" = "AIX" ] ; then
  OSSTR="${OS} `oslevel` (`oslevel -r`)"
elif [ "${OS}" = "Linux" ] ; then
  KERNEL=`uname -r`
  if [ -f /etc/redhat-release ] ; then
    DIST=$(cat /etc/redhat-release | awk '{print $1}')
    if [ "${DIST}" = "CentOS" ]; then
      DIST="CentOS"
    elif [ "${DIST}" = "Mandriva" ]; then
      DIST="Mandriva"
      PSEUDONAME=`cat /etc/mandriva-release | sed s/.*\(// | sed s/\)//`
      REV=`cat /etc/mandriva-release | sed s/.*release\ // | sed s/\ .*//`
    elif [ "${DIST}" = "Fedora" ]; then
      DIST="Fedora"
    else
      DIST="RedHat"
    fi

    PSEUDONAME=`cat /etc/redhat-release | sed s/.*\(// | sed s/\)//`
    REV=`cat /etc/redhat-release | sed s/.*release\ // | sed s/\ .*//`
  elif [ -f /etc/SuSE-release ] ; then
    DIST=`cat /etc/SuSE-release | tr "\n" ' '| sed s/VERSION.*//`
    REV=`cat /etc/SuSE-release | tr "\n" ' ' | sed s/.*=\ //`
  elif [ -f /etc/mandrake-release ] ; then
    DIST='Mandrake'
    PSEUDONAME=`cat /etc/mandrake-release | sed s/.*\(// | sed s/\)//`
    REV=`cat /etc/mandrake-release | sed s/.*release\ // | sed s/\ .*//`
  elif [ -f /etc/debian_version ] ; then
    if [ -f /etc/mailcleaner/etc/mailcleaner/version.def ] ; then
      DIST="MailCleaner"
      REV=`cat /etc/mailcleaner/etc/mailcleaner/version.def`
    else
      DIST="Debian `cat /etc/debian_version`"
      REV=""
    fi
  fi

  if [ -f /etc/UnitedLinux-release ] ; then
    DIST="${DIST}[`cat /etc/UnitedLinux-release | tr "\n" ' ' | sed s/VERSION.*//`]"
  fi

  if [ -f /etc/lsb-release ] ; then
    LSB_DIST="`cat /etc/lsb-release | grep DISTRIB_ID | cut -d "=" -f2`"
    LSB_REV="`cat /etc/lsb-release | grep DISTRIB_RELEASE | cut -d "=" -f2`"
    if [ "$LSB_DIST" != "" ] ; then
      DIST=$LSB_DIST
      REV=$LSB_REV
    fi
  fi

#  OSSTR="${OS} ${DIST} ${REV}(${PSEUDONAME} ${KERNEL} ${MACH})"
  OSSTR="${DIST} ${REV}"
elif [ "${OS}" = "Darwin" ] ; then
  if [ -f /usr/bin/sw_vers ] ; then
    OSSTR=`/usr/bin/sw_vers|grep -v Build|sed 's/^.*:.//'| tr "\n" ' '`
  fi
fi

echo ${OSSTR}




:wq



cd /usr/bin/

chmod +x distro

cd


/etc/init.d/snmpd status

systemctl enable snmpd.service
systemctl start snmpd.service
systemctl status snmpd.service

/etc/init.d/snmpd start

chkconfig snmpd on



###  To check snmp working or not

# From Local Server

snmpwalk -v 2c -c public -O e localhost

# From Remote Server

snmpwalk -v 2c -c public -O e <remote snmp enabled server ip>

For Example:

snmpwalk -v 2c -c public -O e 192.168.0.100