Users Guide

32 Setup and Administration
Configuring Your System to Send Traps to a Management Station
Server Administrator generates SNMP traps in response to changes in the status of sensors and other
monitored parameters. One or more trap destinations must be configured on the system running Server
Administrator for SNMP traps to be sent to a management station.
To configure your system running Server Administrator to send traps to a management station, edit the
SNMP agent configuration file, /etc/snmpd.conf or /etc/snmp/snmpd.conf, and perform the following steps:
1
Add the following line to the file:
trapsink IP_address community_name
where IP_address is the IP address of the management station and community_name is the
SNMP community name.
2 To enable SNMP configuration changes, restart the SNMP agent by typing:
/etc/init.d/snmpd restart
Firewall Configuration on Systems Running Supported Red Hat
Enterprise Linux Operating Systems
If you enable firewall security while installing Red Hat Enterprise Linux, the SNMP port on all external network
interfaces is closed by default. To enable SNMP management applications such as IT Assistant to discover and
retrieve information from Server Administrator, the SNMP port on at least one external network interface
must be open. If Server Administrator detects that the SNMP port is not open in the firewall for any external
network interface, Server Administrator displays a warning message and logs a message to the system log.
You can open the SNMP port by disabling the firewall, opening an entire external network interface in
the firewall, or opening the SNMP port for at least one external network interface in the firewall. You can
perform this action before or after Server Administrator is started.
To open the SNMP port using one of the previously described methods, perform the following steps:
1
At the Red Hat Enterprise Linux command prompt, type setup and press <Enter> to start the
Text Mode Setup Utility.
NOTE: This command is available only if you have performed a default installation of the operating system.
The Choose a Tool menu appears.
2 Select Firewall Configuration using the down arrow and press <Enter>.
The
Firewall Configuration screen appears.