bind 9 secure?

Brad Knowles brad.knowles at
Wed Mar 7 10:24:15 UTC 2001

At 8:44 AM +0100 3/7/01, Ralf Hildebrandt wrote:

>  dnswalk comes in handy for checking the zones.

	Unfortunately, dnswalk can only check zones after they have been 
loaded.  I believe that the current version of nslint has the same 
problem, although I think it can more easily be modified to pull in 
the contents of a file and check that instead.

	Even doc requires that the zone already be loaded, although 
unlike most other DNS debugging tools (e.g., dnswalk, nslint, etc...) 
it does not require the ability to perform a zone transfer in order 
to get a copy of the data to be inspected.

	The only DNS debugging tool I know of that is designed to check 
zones before they are loaded is the program "named-checkzone" that 
comes with BINDv9, and actually uses all the same standard libraries 
and routines that BIND uses, so you can be pretty well assured that 
if named-checkzone says the zone looks okay then BINDv9 won't refuse 
to load it.

Brad Knowles, <brad.knowles at>

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