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Join Date: Nov 2001
Posts: 52
#1 (permalink)  
Old 01-11-2008, 05:04 PM
Default How to flush/reset DNS proxy cache?

I have installed a couple of split horizon dns servers on my network among caching standard internet address lookups it also provides name service (fwd & rev) for an internal 10. network.

I have these two dns server listed as forwarding name servers (positions 1 & 2) in the DNS proxy setup page on my ASL v6 box.

If I point a dns lookup of an internal 10. host to the ASL dns proxy the ASL dns proxy is unable to provide a successful lookup response. It should, shouldn't it?

The dns servers existed in the ASL dns proxy list prior to my adding the internal network address tables and enabling resolution of the 10. network. Is it possible that the ASL's cache still thinks there is no address information for a 10. network because there wasn't yesterday?

If so, how do I flush the dns cache tables? Can it be done without a reboot? Is there a method to login to the command line environment via ssh and enter a command that will flush or expire the currently cached DNS information and make it start fresh lookups, where it will hopefully complete successful lookups of the 10. information?

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