How do I enable single-address DR NSP system access?

Purpose

Use this procedure to reduce the number of IP addresses a user requires for access to the NSP clusters in a DR NSP deployment.

The procedure describes implementing a reverse proxy that presents only one IP address for system access. The reverse proxy maps the IP address to the appropriate NSP cluster.

Note: The procedure describes using the mod_proxy Apache HTTP module. Using a different proxy agent or mod_proxy configuration is supported but not described. Also, mod_proxy installation is not described. Reverse proxy implementation is specific to a network; the network administrator must determine which implementation is best suited to the management network.

Steps
 

Log in as the root user on the station that is to host the reverse proxy.


Open a console window.


Open the httpd.conf file in the mod_proxy installation directory using a plain-text editor such as vi.


Edit the file to include the following:

<VirtualHost *:*>

    <Proxy nspOS://dr>

        BalancerMember http://NSP1

        BalancerMember http://NSP2

    </Proxy>

    ProxyPreserveHost Off

    ProxyPass / nspOS://dr/

    ProxyPassReverse / nspOS://dr/

</VirtualHost>

where

NSP1 and NSP2 are the advertised addresses of the NSP clusters


Close the console window.

End of steps