Chapter 6: DNS |
DNS Commands 249 |
|
|
|
|
show dns forwarding nameservers
Displays name servers being used for DNS forwarding.
Syntax
show dns forwarding nameservers
Command Mode
Operational mode.
Parameters
None
Usage Guidelines
Use this command to display the name servers that are currently being used for DNS forwarding as well as those that are available but are not being used for DNS forwarding.
Examples
Example 6-6 shows sample output of show dns forwarding nameservers.
Example 6 6 Displaying DNS forwarding name server information
vyatta@R1> show dns forwarding nameservers
Nameservers configured for DNS forwarding
10.0.0.30 available via 'system'
Nameservers NOT configured for DNS forwarding
10.0.0.31 available via 'dhcp eth3'
vyatta@R1>
Services |
R6.3 v01 |
Vyatta |
Chapter 6: DNS |
DNS Commands 250 |
|
|
|
|
show dns forwarding statistics
Displays counters related to DNS forwarding.
Syntax
show dns forwarding statistics
Command Mode
Operational mode.
Parameters
None
Usage Guidelines
Use this command to display statistics related to DNS forwarding. The statistics restart each time there is a change in name servers from any source (dhcp, system, or statically configured), a change in static host mapping (using the system static-host-mapping command), or a change made to the DNS forwarding configuration.
Examples
Example 6-7 shows sample output of show dns forwarding statistics.
Example 6 7 Displaying DNS forwarding statistics
vyatta@R1> show dns forwarding statistics
Cache statistics
Cache size: 150 Queries forwarded: 5
Queries answered locally: 2
Total DNS entries inserted into cache: 23
DNS entries removed from cache before expiry: 0
Nameserver statistics
Server: 10.0.0.30 Queries sent: 5
Services |
R6.3 v01 |
Vyatta |
Chapter 6: DNS |
DNS Commands 251 |
|
|
|
|
Queries retried or failed: 0
vyatta@R1>
Services |
R6.3 v01 |
Vyatta |
Chapter 6: DNS |
DNS Commands 252 |
|
|
|
|
update dns dynamic interface <interface>
Sends a forced update to a DDNS service provider on the specified interface.
Syntax
update dns dynamic interface text
Command Mode
Operational mode.
Parameters
interface The interface from which to send the forced update.
Usage Guidelines
Use this command to manually initiate a forced update to a dynamic DNS (DDNS) service provider. The forced update provides the DDNS service provider with the current status of the specified interface.
Note that this command should be used sparingly as frequent unnecessary updates could cause the host name to be blocked by the DDNS service provider.
Services |
R6.3 v01 |
Vyatta |