Configuring dynamic domain name resolution, Displaying and maintaining dns – H3C Technologies H3C S3100 Series Switches User Manual

Page 942

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1-3

z

The IP address you assign to a host name last time will overwrite the previous one if there is any.

z

You may create up to 50 static mappings between domain names and IP addresses.

Configuring Dynamic Domain Name Resolution

Table 1-2 Configure dynamic domain name resolution

Operation

Command

Remarks

Enter the system view

system-view

Enable dynamic domain name
resolution

dns resolve

Required

Disabled by default

Configure an IP address for the
DNS server

dns server ip-address

Required

No IP address is configured for
the DNS server by default.

Configure DNS suffixes

dns domain domain-name

Optional

No DNS suffix is configured by
default

You may configure up to six DNS servers and ten DNS suffixes.

Displaying and Maintaining DNS

After the above configuration, you can execute the display command and the nslookup type

command in any view to display the DNS configuration information and the DNS resolution result to

verify the configuration effect. You can execute the reset command in user view to clear the information

stored in the dynamic domain name resolution cache.

Table 1-3 Display and maintain DNS

Operation

Command…

Remarks

Display static DNS database

display ip host

Display the DNS server
information

display dns server [ dynamic ]

Display the DNS suffixes

display dns domain [ dynamic ]

Display the information in the
dynamic domain name cache

display dns dynamic-host

Available in any
view

Display the DNS resolution result

nslookup type { ptr ip-address | a
domain-name }

Available in any
view

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