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[dns-wg] looking for a tool
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Stephane D'Alu
Stephane.DAlu at nic.fr
Thu Jul 24 15:51:21 CEST 2003
On Thu, Jul 24, 2003 at 09:22:34AM -0400, Edward Lewis wrote: > Although I don't have my requirements completely mapped out yet, I > want to see if there's a tool available to do what I think I want. > > I want to give a DNS zone name and an network address to the tool and > have the tool tell me if what's at port 53 of that address returns an > authoritative answer for the SOA RR. > > By "network address" I mean IP, v4 now and later, v6 now *and/or* later. > By "give" - the format is negotiable, but I will be starting from a list > that associates not only my notion of the authoritative > servers > and a registration record I have. > By "authoritative answer" I expect to see the RCODE=0, AA flag=1, and > in the answer section (one SOA, no CNAME please) > > I want the tool to make a decent effort at UDP congestion handling, > i.e., a few retries if there is no answer. > > I want to be able to call the tool repeatedly and possibly in parallel. > > I want the tool to return the result in a way I can easily parse with > something as stupid as a computer. ;) I mention this because I want > a simplified result for use in my testing, as opposed to the next > request. > > I want the tool to return me all header fields and answer section so > I can feed this to a diagnosis tool and a stat collector - returned > in a way I can send to a different analysis procedure. > > There are a lot of things I don't want the tool to do. > I don't care about the contents of the SOA record's RDATA. > no responsible party testing, timing parameters > no serial number test > I don't care about any other record type. > no NS consistency test > I don't care about any other aspect of network operations > no smtp probing > Well, I care, but they are beyond my current mission scope. > I think so far 'dig' IS THE TOOL you want you will just need to use a very simple shell script too ensure that in case of timeout (detected by the dig exit code) you will retry the request once or twice. On the other side perhaps you could describe the tests that you are planning to perform, so they can be included in a more sophisticated too like ZoneCheck (http://www.zonecheck.fr/) for example. Sincerly -- Stephane D'Alu ZoneCheck: the zone checking tool http://www.zonecheck.fr/
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