Difference between revisions of "Host SNMP Configuration"
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| + | <p> | ||
First install Net-SNMP : | First install Net-SNMP : | ||
| + | </p> | ||
| − | root@ubuntu:~# apt-get install snmpd | + | <p> |
| − | + | <i> root@ubuntu:~# apt-get install snmpd </i> <br> | |
| − | + | <b>Ubuntu: make sure the SNMPDOPTS line in /etc/default/snmpd looks like this</b> | |
| − | + | </p> | |
| − | Ubuntu: make sure the SNMPDOPTS line in /etc/default/snmpd looks like this | ||
| − | |||
| − | |||
| − | |||
| + | <p> | ||
| + | <i>SNMPDOPTS='-Lsd -Lf /dev/null -u snmp -p /var/run/snmpd.pid'</i> | ||
| + | </p> | ||
| − | + | <p> | |
| − | + | <b>This also disables logging and as such gets rid of annoying "features" like</b><br> | |
| − | |||
| − | |||
| − | This also disables logging and as such gets rid of annoying "features" like | ||
| − | |||
snmpd[4990]: Connection from UDP: 1.2.3.4 | snmpd[4990]: Connection from UDP: 1.2.3.4 | ||
| + | </p> | ||
| − | Replace the default /etc/snmp/snmpd.conf file with something like this, changing the community, location and contact fields | + | <p> |
| + | <b>Replace the default /etc/snmp/snmpd.conf file with something like this, changing the community, location and contact fields</b> | ||
| + | </p> | ||
| − | com2sec readonly default < | + | <p> |
| − | group MyROGroup v1 readonly | + | <i>com2sec readonly default techinc</i><br> |
| − | group MyROGroup v2c readonly | + | <i>group MyROGroup v1 readonly</i><br> |
| − | group MyROGroup usm readonly | + | <i>group MyROGroup v2c readonly</i><br> |
| − | view all included .1 80 | + | <i>group MyROGroup usm readonly</i><br> |
| − | access MyROGroup "" any noauth exact all none none | + | <i>view all included .1 80</i><br> |
| − | syslocation < | + | <i>access MyROGroup "" any noauth exact all none none</i><br> |
| − | syscontact < | + | <i>syslocation Louwesweg 1 </i><br> |
| − | #This line allows Observium to detect the host OS if the distro script is installed | + | <i>syscontact Network Team</i><br> |
| − | extend .1.3.6.1.4.1.2021.7890.1 distro /usr/bin/distro | + | <i>#This line allows Observium to detect the host OS if the distro script is installed</i><br> |
| + | <i>extend .1.3.6.1.4.1.2021.7890.1 distro /usr/bin/distro</i> | ||
| + | </p> | ||
| − | Get the observium 'distro' script to identify your distribution via SNMP | + | <p> |
| + | <b>Get the observium 'distro' script to identify your distribution via SNMP</b> | ||
| + | </p> | ||
| − | wget http://www.observium.org/svn/observer/trunk/scripts/distro | + | <p> |
| − | mv distro /usr/bin/distro | + | <i>wget http://www.observium.org/svn/observer/trunk/scripts/distro/<br></i> |
| − | chmod 755 /usr/bin/distro | + | <i>mv distro /usr/bin/distro</i><br> |
| + | <i>chmod 755 /usr/bin/distro</i> | ||
| + | </p> | ||
| − | You should then be able to restart snmpd | + | <p> |
| + | <b>You should then be able to restart snmpd</b> | ||
| + | </p> | ||
| + | <p> | ||
root@server:~# /etc/init.d/snmpd restart | root@server:~# /etc/init.d/snmpd restart | ||
| + | </p> | ||
| + | |||
| + | <p> | ||
| + | <b>And then add the device to your Observium installation!</b> | ||
| + | </p> | ||
| − | + | <p> | |
On devices with a large routing table | On devices with a large routing table | ||
| + | </p> | ||
| + | <p> | ||
You may encounter sloppy SNMP responsiveness and high host load with too many routes installed in combination with netsnmp. Also see this Debian bugreport of a few years back. The last post seems to fix this issue, so if you are running full table, add these lines to snmpd.conf as well: | You may encounter sloppy SNMP responsiveness and high host load with too many routes installed in combination with netsnmp. Also see this Debian bugreport of a few years back. The last post seems to fix this issue, so if you are running full table, add these lines to snmpd.conf as well: | ||
| + | </p> | ||
| − | view all included .1 80 | + | <p> |
| − | view all excluded .1.3.6.1.2.1.4.21 | + | view all included .1 80<br> |
| − | view all excluded .1.3.6.1.2.1.4.24 | + | view all excluded .1.3.6.1.2.1.4.21<br> |
| + | view all excluded .1.3.6.1.2.1.4.24<br> | ||
view system included .iso.org.dod.internet.mgmt.mib-2.system | view system included .iso.org.dod.internet.mgmt.mib-2.system | ||
| + | </p> | ||
Latest revision as of 20:14, 3 December 2014
First install Net-SNMP :
root@ubuntu:~# apt-get install snmpd
Ubuntu: make sure the SNMPDOPTS line in /etc/default/snmpd looks like this
SNMPDOPTS='-Lsd -Lf /dev/null -u snmp -p /var/run/snmpd.pid'
This also disables logging and as such gets rid of annoying "features" like
snmpd[4990]: Connection from UDP: 1.2.3.4
Replace the default /etc/snmp/snmpd.conf file with something like this, changing the community, location and contact fields
com2sec readonly default techinc
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 Louwesweg 1
syscontact Network Team
#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
Get the observium 'distro' script to identify your distribution via SNMP
wget http://www.observium.org/svn/observer/trunk/scripts/distro/
mv distro /usr/bin/distro
chmod 755 /usr/bin/distro
You should then be able to restart snmpd
root@server:~# /etc/init.d/snmpd restart
And then add the device to your Observium installation!
On devices with a large routing table
You may encounter sloppy SNMP responsiveness and high host load with too many routes installed in combination with netsnmp. Also see this Debian bugreport of a few years back. The last post seems to fix this issue, so if you are running full table, add these lines to snmpd.conf as well:
view all included .1 80
view all excluded .1.3.6.1.2.1.4.21
view all excluded .1.3.6.1.2.1.4.24
view system included .iso.org.dod.internet.mgmt.mib-2.system
