Chapter 23
| Domain Name Service Commands
– 529 –
Example
This example clears all dynamic entries from the DNS table.
Console(config)#clear host *
Console(config)#
show dns
This command displays the configuration of the DNS service.
Command Mode
Privileged Exec
Example
Console#show dns
Domain Lookup Status:
DNS enabled
Default Domain Name:
sample.com
Domain Name List:
sample.com.jp
sample.com.uk
Name Server List:
192.168.1.55
10.1.0.55
Console#
show dns cache
This command displays entries in the DNS cache.
Command Mode
Privileged Exec
Example
Console#show dns cache
No. Flag Type IP Address TTL Domain
------- ------- ------- --------------- ------- --------
3 4 Host 209.131.36.158 115 www-real.wa1.b.yahoo.com
4 4 CNAME POINTER TO:3 115 www.yahoo.com
5 4 CNAME POINTER TO:3 115 www.wa1.b.yahoo.com
Console#
Table 113: show dns cache - display description
Field
Description
No.
The entry number for each resource record.
Flag
The flag is always “4” indicating a cache entry and therefore unreliable.
Type
This field includes “Host” which specifies the primary name for the owner, and
“CNAME” which specifies multiple domain names (or aliases) which are
mapped to the same IP address as an existing entry.
Summary of Contents for EX-3524
Page 2: ......
Page 28: ...Figures 28 ...
Page 34: ...Section I Getting Started 34 ...
Page 58: ...Chapter 1 Initial Switch Configuration Setting the System Clock 58 ...
Page 72: ...Chapter 2 Using the Command Line Interface CLI Command Groups 72 ...
Page 156: ...Chapter 5 SNMP Commands Notification Log Commands 156 ...
Page 164: ...Chapter 6 Remote Monitoring Commands 164 ...
Page 218: ...Chapter 7 Authentication Commands Management IP Filter 218 ...
Page 268: ...Chapter 8 General Security Measures Port based Traffic Segmentation 268 ...
Page 292: ...Chapter 9 Access Control Lists ACL Information 292 ...
Page 312: ...Chapter 10 Interface Commands Power Savings 312 ...
Page 324: ...Chapter 11 Link Aggregation Commands Trunk Status Display Commands 324 ...
Page 366: ...Chapter 15 Address Table Commands 366 ...
Page 428: ...Chapter 17 VLAN Commands Configuring Voice VLANs 428 ...
Page 572: ...Chapter 25 IP Interface Commands IPv6 Interface 572 ...
Page 578: ...Section I Appendices 578 ...