Users Guide

Table Of Contents

6. To enable SNMP configuration changes, restart the SNMP agent by typing: /etc/init.d/snmpd restart.

Changing The SNMP Community Name

Configuring the SNMP community name determines which management stations are able to manage your system through

SNMP. The SNMP community name used by management applications must match the SNMP community name configured

on the system running Server Administrator,, so the management applications can retrieve the management information from

Server Administrator.

To change the default SNMP community name used for retrieving management information from a system running Server

Administrator:

1. Open the SNMP agent configuration file, /etc/snmp/snmpd.conf.

2. Find the line that reads: rocommunity public 127.0.0.1.

3. Edit this line by replacing public with the new SNMP community name. When edited, the new line should read:

rocommunity community_name 127.0.0.1.

4. To enable SNMP configuration changes, restart the SNMP agent by typing: /etc/init.d/snmpd restart.

Configuring The SNMP Agent On Systems Running Supported VMware ESX

4.X Operating Systems To Proxy VMware MIBs

The ESX 4.X server can be managed through a single default port 162 using the SNMP protocol. To do this, snmpd is configured

to use the default port 162 and vmwarehostd is configured to use a different (unused) port, for example, 167. Any SNMP

request on the VMware MIB branch is rerouted to the vmware-hostd using the proxy feature of the snmpd daemon.

The VMWware SNMP configuration file can be modified manually on the ESX server or by running the VMware Remote

Command-Line Interface (RCLI) command, vicfg-snmp, from a remote system (Windows or Linux). The RCLI tools can be

downloaded from the VMware website at vmware.com/download/vi/drivers_tools.html.

To configure the SNMP agent:

1. Edit the VMware SNMP configuration file, /etc/vmware/snmp.xml, either manually or run the following vicfg-snmp

commands to modify the SNMP configuration settings. This includes the SNMP listening port, community string, and the

trap target ipaddress/port, and trap community name and then enable the VMware SNMP service.

a. vicfg-snmp.pl --server <ESX_IP_addr> --username root --password <password> -c

Where represents an unused port. To find an unused port, check the /etc/services file for the port assignment

for defined system services. Also, to make sure that the port selected is not currently being used by any application or

service, run the following command on the ESX server: netstat –a command

NOTE: Multiple IP addresses can be entered using a comma-separated list.

To enable VMWare SNMP service, run the following command:

b. vicfg-snmp.pl --server <ESX_IP_addr> --username root --password <password> - E

To view the configuration settings, run the following command:

c. vicfg-snmp.pl --server <ESX_IP_addr> --username root --password <password> -s

The following is an example of the configuration file, after modification:

<?xml version="1.0">

<communities> public </communities>

<targets> 143.166.152.248@162/public </targets>

</snmpSettings>

</config>

Setup And Administration