Troubleshooting Domain Name Resolution Configuration - H3C S9500 Series Operation Manual

Operation Manual – DNS
H3C S9500 Series Routing Switches
# Configure the IP address of the domain name server to 172.16.1.1.
[H3C] dns server 172.16.1.1
# Configure the domain name suffix as com.
[H3C] dns domain com
# Ping a host with the specified domain name.
[H3C] ping ftp
Trying DNS server (172.16.1.1)
PING ftp.com (200.200.200.200): 56
Reply from 200.200.200.200: bytes=56 Sequence=1 ttl=128 time=2 ms
Reply from 200.200.200.200: bytes=56 Sequence=2 ttl=128 time=2 ms
Reply from 200.200.200.200: bytes=56 Sequence=3 ttl=128 time=2 ms
Reply from 200.200.200.200: bytes=56 Sequence=4 ttl=128 time=2 ms
Reply from 200.200.200.200: bytes=56 Sequence=5 ttl=128 time=2 ms
--- ftp.com ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 2/2/2 ms
The routing configuration between the switch and the domain name server is omitted
here, and refer to the related chapter for the configuration.

1.5 Troubleshooting Domain Name Resolution Configuration

Fault: Domain name resolution fails.
Troubleshoot: Perform the following procedures:
Check whether the domain name resolution function is enabled.
Check whether the IP address of the domain name server is correctly configured.
Check whether there is a correct route between the domain name server and the
switch.
Check whether there is network connection failure, such as network cable break,
loose connection, and so on.
data bytes, press CTRL_C to break
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Chapter 1 DNS Configuration