H3C S7500 Series Ethernet Switches Command Manual

Table Of Contents
Command Manual – DNS
H3C S7500 Series Ethernet Switches Chapter 1 DNS Configuration Commands
1-2
Parameters
None
Description
Use the display dns dynamic-host command to display information about the
dynamic DNS cache.
The DNS client saves a successful DNS resolution result to the DNS cache. When
receiving a name query, the DNS Client first looks up the DNS cache for a match. If a
match is found, it returns the corresponding IP address to the user program. If not, it
sends a query to the DNS server.
Examples
# Display the information in the dynamic DNS cache.
<H3C> display dns dynamic-host
No. Domain-name IpAddress TTL Alias
0 www.baidu.com 202.108.249.134 63000
1 www.yahoo.akadns.net 66.94.230.39 24
2 www.hotmail.com 207.68.172.239 3585
3 www.eyou.com 61.136.62.70 3591
Table 1-2 Description on the field of the display dns dynamic-host command
Field Description
No Sequence number
Domain-name Domain name
IpAddress IP address corresponding to the domain name
TTL Time for the entry to be stored in the cache (in seconds)
Alias Alias name for the domain name, up to 4
1.1.3 display dns server
Syntax
display dns server [ dynamic ]
View
Any view
Parameters
Dynamic: Specifies to display the DNS server information dynamically obtained by
DHCP or other protocols.