2.7 Preparing the Network

After you complete the initial proxy server installation and activation, review this section to ensure that all your network components are properly configured.

2.7.1 Basic Network Configuration Setup

Figure 2-4 provides a visual map for the information in this section.

NOTE:The letters in Figure 2-4 are referenced in the tables that follow. The addresses shown are for illustration purposes only. You need to substitute actual addresses for your network.

Figure 2-4 Basic Network Configuration Setup

2.7.2 Configuring the Client Workstation

In most cases, client workstations on the network are already configured with IP address information to use the network. If that is the case with your client workstations, you can skip this section.

The workstation of each browser that will use the iChain Proxy Server must be configured with the IP address information listed in the following table.

IP Address Information

Must Be on the Same Subnet (Y/N)

A numeric IP address on the subnet

Y

The subnet mask

Y

The numeric IP address of the default gateway for the subnet

Y

The numeric IP address of the DNS server the browser will use to resolve DNS names

N

The domain name for the DNS server the client will use (optional)

N

Configuration procedures vary for each platform. Refer to the workstation documentation for specific instructions.

Configuration Requirements

Do This

Notes

A numeric IP address on the subnet

The subnet mask

The numeric IP address of the default gateway for the subnet

The numeric IP address of the DNS server the browser uses to resolve DNS names

The domain name for the DNS server the client will use (optional)

Refer to the setup instructions for the system.

The procedure is different for each platform. On a Windows NT workstation, for example, right-click the Network Neighborhood icon on the desktop.

See A in Figure 2-4.

The IP address, subnet mask, and gateway address must all be on the same subnet.

2.7.3 Configuring the iChain Proxy Server

IMPORTANT:When possible, connect the network cable to the network card on the iChain Proxy Server before assigning an IP address to the card. If this is not possible, you might need to restart the server after the cable is attached for the IP address assignment to take effect.

Configure the iChain Proxy Server with the following information:

To Configure

Do This

Notes

IP addresses and subnet masks for the network connections (eth0, eth1, etc.) that handle proxy services

  1. In the browser-based tool, click Network > IP Addresses > Add Address.

  2. Enter the addresses in the appropriate fields, click the Assign to Adapter drop-down list, then select the appropriate adapter.

  3. Click Apply.

See B and C in Figure 2-4.

The proxy server need not be on the same subnet as the browser. If not, its IP address reflects a different subnet.

Eth0, eth1, etc., can be on different subnets.

At least one DNS server IP address

  1. In the browser-based tool, click Network > DNS.

  2. Enter the addresses in the appropriate fields.

  3. Click Apply.

 

The numeric IP address for a gateway (router) on the same subnet as the proxy server

  1. In the browser-based tool, click Network > Gateway/Firewall.

  2. Specify the address in the Default Gateway IP Address field.

  3. Click Apply.

See B in Figure 2-4.

If the iChain Proxy Server is on the same subnet as the client workstation, the proxy server and the workstation have the same gateway address.

If the proxy server is on a different subnet than the browser, its gateway address is the IP address of the router on the other subnet. See C in Figure 2-4.

Passwords for Config and View users

  1. In the browser-based tool, click System > Actions > Password.

  2. Click the User drop-down list, then select Config.

  3. Enter the password information, then click Change.

  4. Repeat Step 2 and Step 3 for the View user.

  5. Click Apply.

NOTE:Telnet is not secure unless a password is set.

We strongly recommend you set system passwords as part of the initialization process.

One or more proxy services

See the sections that follow.

 

IMPORTANT:If you are reinitializing the system, you should remove the CD, shut down iChain Proxy Server, turn the proxy server off, and restart it again.