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56 COMMANDCENTER NOC ADMINISTRATOR GUIDE
External Proxy Host Requirements
For best results, it is recommended to use Windows XP Professional, Service Pack 2 (or later)
with auto updates enabled to facilitate communications between CC-NOC and the managed
systems.
The external proxy needs to meet these requirements:
• 1000 MHz CPU or higher
• 512 MB of RAM or higher
• Windows XP Professional with Service Pack 2 or higher
• Non-mission-critical role on your network
Overview
To configure a CC-NOC so it collects WMI data, you need to:
1. Configure an external system within the environment to act as a Proxy for gathering WMI
data, unless you are using a CC-NOC 2500M’s internal proxy, by downloading and running a
provided configuration tool.
2. Configure the CC-NOC with the proper permissions, for example, domain or individual
system permissions, to interact with both the Proxy and the target systems.
Note: It is recommended to configure one proxy per subnet unless you have configured a WINS
server in your environment. You can also specify LMHOST file entries on a CC-NOC 2500M for
name resolution – see
Configure WINS later in this chapter for details.
The next few sections explain how to perform the above tasks. Please follow the steps below to
ensure optimal performance on your Windows external proxies as they collect management
information.
Download and Run ProxyInstaller
Configuring a system as a proxy is accomplished in two steps. The first step is to remove the
legacy proxy settings on the external system if you are using a 5.0 version or earlier and
download the newest proxy configuration program. The second step is to run ProxyInstaller.
ProxyInstaller only edits registry settings; additional software is not installed.
Note: If you have a CC-NOC 5.0 or earlier and are experiencing problems with your current
external proxy, it is recommended to upgrade to CC-NOC 5.4 proxy.
You must repeat these steps on all Windows machines that are acting as an external proxy for
CC-NOC 100, 250, or 2500M. CC-NOC 2500M acts on its own as a Windows management
proxy; no action is required to migrate it to a new configuration and all updates to CC-NOC 2500
are automatic.
To configure an external proxy:
1. Ensure you have Administrator privileges on the external proxy.
2. If you have a CC-NOC 5.0 or earlier:
a) Download the installed legacy program (cfgproxy.exe) on CC-NOC 100, CC-NOC
250, or CC-NOC 2500N from the following URL:
http://<Your_CommandCenter_NOC_IP>/public/cfgproxy.exe
b) Remove legacy proxy settings, run the cfgproxy.exe program with the “uninstall”
option:
c:\> cfgproxy.exe -u
3. Download the newest proxy configuration program,
ProxyInstaller, from this location:
http://<address_of_noc>/public/ProxyInstaller.zip