Dns Proxy Configuration Example - 3Com 4210G Series Configuration Manual

DNS Proxy Configuration Example

Network requirements
Specify Switch A as the DNS server of Switch B (the DNS client).
Switch A acts as a DNS proxy. The IP address of the real DNS server is 4.1.1.1.
Switch B implements domain name resolution through Switch A.
Figure 10-8 Network diagram for DNS proxy
Configuration procedure
Before performing the following configuration, assume that Switch A, the DNS server, and the host are
reachable to each other and the IP addresses of the interfaces are configured as shown in
1) Configure the DNS server
This configuration may vary with different DNS servers. When a Windows server 2000 acts as the DNS
server, refer to
information.
2) Configure the DNS proxy
# Specify the DNS server 4.1.1.1.
<SwitchA> system-view
[SwitchA] dns server 4.1.1.1
# Enable DNS proxy.
[SwitchA] dns proxy enable
3) Configure the DNS client
# Enable the domain name resolution function.
<SwitchB> system-view
[SwitchB] dns resolve
Dynamic Domain Name Resolution Configuration Example
10-9
Figure 10-8.
for related configuration