Defining Forwarders
You can specify a domain for which forwarding should occur. The forwarder definition is by a list of names of servers or a list of IP addresses with an optional port number, or both.
Note |
You can specify IPv4 and/or IPv6 addresses and for the changes to take effect, you must reload the CDNS server. |
Tip |
To force a caching DNS server to only talk to a forwarder, define a forwarder for the DNS root (.). |
Local Basic or Advanced Web UI
To define a forwarder:
Procedure
Step 1 |
From the Design menu, choose Forwarders under the Cache DNS submenu . This opens the List/Add Forwarders page. |
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Step 2 |
Click the Add Forwarders icon in theForwarders pane to open the Add DnsForwarder dialog box. |
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Step 3 |
Enter the name of the zone to be forwarded as the name and click Add DnsForwarder .
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Step 4 |
In the Edit Forwarders page, enter the hostname, and click Add Host and enter the IP address for the forwarder then click Add Address. |
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Step 5 |
Click Save. |
CLI Commands
Use the following cdns commands to:
- Specify the address (or space-separated addresses) of nameservers to use as forwarders, use cdns addForwarder .
- List the current forwarders, use cdns listForwarders .
- Edit your forwarder list, you must remove any offending forwarder and reenter it.
- Remove a forwarder or list
of forwarders, use
cdns
removeForwarder .
Note
For any change to the forwarders to take effect, you should restart the CDNS server.