Found this SNMP guide for installing on Ubuntu.  Last install for me was from my System76 box.

This guide describe howto install and configure SNMP on Ubuntu.


root@ibsen:~# sudo apt-get install snmpd Reading package lists… Done Building dependency tree       Reading state information… Done The following packages were automatically installed and are no longer required:   libmpich1.0gf libdc1394-22 genisoimage linux-headers-2.6.27-7 libgfortran2 dvd+rw-tools linux-headers-2.6.27-7-generic libcarp-clan-perl libxml-xql-perl libparse-yapp-perl   rdate python-xml localechooser-data gcc-4.2-base libimage-size-perl libdebconfclient0 libvisual-0.4-0 libmyth-python perlmagick libvisual-0.4-plugins libavdevice52 Use ‘apt-get autoremove’ to remove them. The following extra packages will be installed:   libperl5.10 libsensors3 libsnmp-base libsnmp15 Suggested packages:   lm-sensors The following NEW packages will be installed:   libperl5.10 libsensors3 libsnmp-base libsnmp15 snmpd 0 upgraded, 5 newly installed, 0 to remove and 3 not upgraded. Need to get 2463kB of archives. After this operation, 7987kB of additional disk space will be used. Do you want to continue [Y/n]?

answer y

2. Configuration

Move existing /etc/snmp/snmpd.conf configuration file to /etc/snmp/

mv /etc/snmp/snmpd.conf /etc/snmp/

Create a new /etc/snmp/snmpd.conf file:

rocommunity  public (change this for your use) syslocation  “Corporate Data Center” syscontact

Make snmpd use the newly created file and make it listen to all interfaces:

Edit /etc/default/snmpd

Change from:

# snmpd options (use syslog, close stdin/out/err). SNMPDOPTS=’-Lsd -Lf /dev/null -u snmp -I -smux -p /var/run/′


# snmpd options (use syslog, close stdin/out/err). #SNMPDOPTS=’-Lsd -Lf /dev/null -u snmp -I -smux -p /var/run/′ SNMPDOPTS=’-Lsd -Lf /dev/null -u snmp -I -smux -p /var/run/ -c /etc/snmp/snmpd.conf’

and restart snmpd

/etc/init.d/snmpd restart

3. Test

Do a snmpwalk from another host against your newly configured host.

[root@op5 ~]# snmpwalk -v 1 -c public -O e ibsen SNMPv2-MIB::sysDescr.0 = STRING: Linux ibsen 2.6.27-9-generic #1 SMP Thu Nov 20 21:57:00 UTC 2008 i686 SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (68869) 0:11:28.69 SNMPv2-MIB::sysContact.0 = STRING: SNMPv2-MIB::sysName.0 = STRING: ibsen SNMPv2-MIB::sysLocation.0 = STRING: “PDC, Peters DataCenter” SNMPv2-MIB::sysORLastChange.0 = Timeticks: (1) 0:00:00.01 SNMPv2-MIB::sysORID.1 = OID: SNMP-FRAMEWORK-MIB::snmpFrameworkMIBCompliance SNMPv2-MIB::sysORID.2 = OID: SNMP-MPD-MIB::snmpMPDCompliance SNMPv2-MIB::sysORID.3 = OID: SNMP-USER-BASED-SM-MIB::usmMIBCompliance SNMPv2-MIB::sysORID.4 = OID: SNMPv2-MIB::snmpMIB SNMPv2-MIB::sysORID.5 = OID: TCP-MIB::tcpMIB SNMPv2-MIB::sysORID.6 = OID: IP-MIB::ip

Yes it works!!

4. Monitor example

Below is an example of how it looks using Cacti.

Michael Coburn Cacti graph
Cacti Graph from Michael Coburn








5. Useful links

  • Net-SNMP, an open source implementation of SNMP

  • Cacti, an open source graph tool

  • Nagios, the number 1 monitor tool

SNMP on Ubuntu