HP XC System Software Installation Guide Version 3.2.1

Table 3-3 Information Required by the cluster_config Utility (continued)
Description and User ActionItem
You are prompted to enable web access to the Nagios monitoring application.
HP recommends that you enable web access because it is the only mechanism
with which you can view the data collected by Nagios.
You will have to supply a password for the Nagios administration user. This
password does not have to match any other password you previously provided.
If you assigned the management_server role to the nodes in an availability
set, you are prompted to specify how you want to handle improved availability
for the Nagios master service. You can choose between no improved availability
or enabling improved availability through an availability tool.
Nagios configuration
If you assigned the external role to the nodes in an availability set, you are
prompted to specify how you want to handle improved availability for the nat
service. You can choose between no improved availability or enabling improved
availability through an availability tool.
You are also prompted to enter an additional external IP address to use as an
external alias.
NAT configuration
You are prompted to configure the snmptrapd service if the hardware
configuration includes HP server blade enclosures or if you have defined an
mcs.ini file to configure MCS devices.
Configuring the snmptrapd service enables Nagios to generate alerts for critical
SNMP traps sent from either an enclosure or an MCS device.
snmptrapd service
configuration
If you installed SVA or optional remote graphics software,
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you are prompted
to supply the following information:
• Whether the visualization nodes (the workstations) have a KVM attached
• The host names for display nodes, that is, the nodes that have monitors
connected to them
• Remote graphics software configuration information:
— The host names of the remote graphics nodes. You must configure external
connections on these nodes.
— Whether you want to use RGS sender on the head node. Doing so enables
the head node to display remote nodes (for HP RGS only).
— Whether you want to use RGS Receiver Version 3.0 to connect the system
(for HP RGS only).
Answering yes means that multiple ports are opened on the firewall.
Answering no opens a single port on the firewall.
The current version of HP RGS is Version 4.n. Version 4.n receivers require
a single port opened in the firewall. If you choose to continue using
previously installed HP RGS Version 3.0 receivers, multiple ports are
opened in the firewall. You can use only Version 4.n receivers or a mix of
Version 4.n and Version 3.0 receivers.
For more information about HP RGS and its use of firewalls, see the SVA
System Administration Guide .
SVA and remote graphics
software configuration
You are prompted to configure a self-signed certificate for the Apache server so
that all HP XC systems do not have the same credentials. If you do not configure
a self-signed certificate, the certificate that is shipped with the Linux base
operating system is used instead, which prevents some web browsers from being
able to connect to more than one HP XC system during the same session.
Apache self-signed certificate
If you modified the default role assignments and assigned a nis_server role
to configure one or more nodes as a NIS slave server, you are prompted to enter
the name of the NIS master server or its IP address as well as the NIS domain
name.
NIS configuration
3.2 Task 1: Prepare for the System Configuration 59