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CGI programs. Users may be allowed or denied access to CGI
programs by selecting the user and clicking the arrows to deny or
allow access.
Web Caching
Server
Enable
– check the box to enable the Web Caching Server.
Note:
The Web Caching Server Web option enables the ISA-4000 to
keeps copies of the most-recently requested Web pages in memory or
on disk in order to speed up retrieval.
Restriction Policy
– Machines that may access the web caching
server can be specified in one of three ways: those permitted, those
restricted, or all machines may access the caching server.
Hosts/Domains/IP Addresses
– Type the domains or IP addresses
that the access policy applies to.
3. Click
Save
.
5.3.6 DHCP (Dynamic Host Configuration Protocol)
The Dynamic Host Configuration Protocol is a protocol that allows clients to obtain IP addresses
automatically from the DHCP server. It is a very convenient way to obtain IP addresses in a TCP/IP
network.
5 . 3 . 6 . 1 D H C P
S E T T I N G S
1. Click
Network Services
.
2. Click
DHCP
. The DHCP Screen appears:
Figure 5-20: DHCP settings
The field definitions are as follows:
Enable DHCP
Server
Enable
– check the box to enable the ISA-4000 to act as a DHCP
Server.
Note:
A DHCP server is server in the network or a service within a
server that assigns IP addresses.
DHCP Client
Settings
Domain Name Server Addresses
– the IP address or addresses of
your local domain name servers that the clients will be automatically
configured to use.
Subnet Mask
– the subnet mask that the ISA-4000 will assign to
DHCP clients.
Gateway
– the router address that the ISA-4000 will assign to DHCP
clients.
Maximum Lease Time
– The networking information that is assigned
to these clients by the DHCP server is "leased,” "or rented out,” and
