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Netra Proxy Cache Array Configuration Guide

Proxy Cache Service Configuration

Use your entries in the following tables to respond to prompts in the administrative web pages. In these pages, configuration is broken down as follows:

The tables correspond to pages you find in the administrative web pages.

Use the values you enter in Table 1-4 and Table 1-5 to configure the proxy cache service.

Table 1-4 Data for Basic Proxy Cache Configuration

Parameter Name 

Description 

Enter Value Here: 

HTTP port  

Port number used by the Netra Proxy Cache Server for receiving web requests. Most users can accept the default of 8080. Example: 8080 

 

Inside firewall? 

In a corporate setting, most proxy cache servers are inside a firewall. 

 

Domains inside firewall 

For domains not on this list, if the server cannot find a requested object in its local cache, it always tries to fetch the URL from a parent or sibling. 

 

 

 

 

Parent proxies 

If you are inside a firewall, you probably have a parent proxy. You can have multiple parents. See following table. 

 

 

 

The Netra Proxy Cache Server supports multiple parent and sibling proxies. For each parent of your server, find out the following information:

(Netscape and Netscape Navigator are trademarks of Netscape Communications Corporation. Microsoft and Internet Explorer are trademarks of Microsoft Corporation.)

If your parent is a Netra Proxy Cache Server, keep in mind that the server uses default port numbers of 8080 and 3130, for HTTP and ICP, respectively. Also the Netra Proxy Cache Server supports SSL tunneling and persistent connections.

If your Netra Proxy Cache Server is part of an array, sibling configuration is automatic: there is no need to specify other machines in the array as your siblings. You can specify machines not in the array as siblings.

If your parent is not a Netra Proxy Cache Server, consult the documentation for that server to determine whether it supports ICP, SSL tunneling, and persistent connections.

Table 1-5 Parent Proxies (Enter Names and Values)

Parent Name 

HTTP Port 

ICP Port (Enter 0 if ICP not supported) 

Support SSL tunneling? (y/n) 

Support persistent connections (y/n) 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use the values in Table 1-6 to complete basic array configuration.

Table 1-6 Data for Basic Array Configuration

Parameter Name 

Description 

Enter Value Here: 

control network 

Subnet number of the control network, expressed as, for example, x.x.x.0 for a Class C netmask. It is recommended that you use 10.0.0.0 or 192.168.0.0. Example: 192.168.89.0

 

control network netmask 

You can probably accept the default of 255.255.255.0. Example: 255.255.255.0 

 

service network 

Subnet number of the service network, expressed as, for example, x.x.x.0 for a Class C netmask. This value must be different from the subnet number used for the control network. Example: 129.144.118.0 (Note that this is the subnet portion of the host IP address and of the proxy cache and DNS service addresses)

 

service network netmask 

The default is 255.255.255.0. Example: 255.255.255.0 

 

Proxy cache domain name 

Name of the DNS domain formed by the hosts in the array. Example: cache.acme.com

 

Array DNS service address 

An IP address associated with the DNS on the array DNS server. As a service address, this address is subject to moving to a different host upon host failure. Example: 129.144.118.200 

 

Array DNS host name 

Host name of the host within the array that will act as the DNS server for the domain formed by the array. You can choose any machine in the array. It is strongly recommended that you use your administrative host. Example: host1

 

Use the data in Table 1-7 to complete basic array member configuration.

Table 1-7 Data for Basic Array Member Configuration

Parameter Name 

Description 

Enter Value Here: 

For each host in the array:

host name 

Just as you entered it during initial configuration. See Table 1-1. Example: host1

 

host address 

IP address associated with hme0 interface. This is the address you specified as the IP address of the Netra Proxy Cache Server during initial configuration. See Table 1-1. Unlike a service address, this address is not subject to moving to a different host. This address must have the same subnet number that you specified for the service network. Example: 129.144.118.2

 

control address 

IP address associated with the hme1 interface, used to connect to the control network. This address must have the same subnet number that you specified for control network. See Table 1-5. Example: 192.168.89.1

 

service address 

An IP address associated with the proxy cache service on a host. As a service address, this address is subject to moving to a different host upon host failure. This address must have the same subnet number as the host address, above. This is also the same subnet number you specified for the service network. See Table 1-5.

Example: 129.144.118.100