Configure the Client to Use the Fully Qualified wpad
Alias
The Web Proxy and Firewall client need to be able to resolve the name wpad. The Web Proxy
and Firewall client configurations are not aware of the domain containing the wpad alias. The
Web Proxy and Firewall client operating system must be able to provide this information to
the Web Proxy and Firewall client.
DNS queries must be fully qualified before sending the query to the DNS server. A fully
qualified request contains a host name and a domain name. The Web Proxy and Firewall
client only know the host name portion. The Web Proxy and Firewall client operating system
must be able to provide the correct domain name, which it appends to the wpad host name,
before it can send a DNS query to the DNS server.
There are a number of methods you can use to insure that a proper domain name is
appended to wpad before the query is sent to the DNS server. Two popular methods for doing
this include:
• Using DHCP to assign a primary domain name
• Configuring a primary domain name in the client operating system’s network identification
dialog box.
We already configured a primary DNS name to assign DHCP clients when we configured the
DHCP scope. The following steps demonstrate how to set the primary domain name to
append to unqualified DNS queries:
Note:
You do not need to perform these steps on the client machine on the Internal network in
our example network. The reason for this is that the client is a member of the Active
Directory domain on the Internet network. However, you should go through the following
steps to see how the primary domain name is configured on non-domain member
computers.
•
1. Right click My Computer on the desktop and click Properties.
2. In the System Properties dialog box, click the Network Identification tab. Click the
Properties button.
3. In the Identification Changes dialog box, click the More button.
ISA Server 2004 Configuration Guide 49
