On 8 Jul 1997, Chris Brown wrote:
:
: I need to determine weather my ISP is actually being secondary
:to my primary DNS. After looking at my log files I found entries
:like this.
:
:Jul 7 23:24:06 oak named[451]: approved AXFR from [204.176.14.4].4231 for
"seitz.com"
:
:I gather that this says that 204.176.14.4 retrieved the records
:for "seitz.com". Is there any other means of determining weather
:their DNS is acting as secondary?
Sure. Use nslookup in interactive mode. First, do a 'set q=soa', and
then query for 'seitz.com'. The IP address of the secondary
(204.176.14.4) shpould be listed as one of the authoritative
nameservers.
Next, issue a 'server 204.176.14.4', which will make that server the
server to be queried. Then do an 'ls -t a seitz.com', which will list
every entry for seitz.com that the server knows about. If you try that
command on a server that's not authoritative for the domain, it'll chuck
a fit. You *should* end up with a listing that corresponds to all the
hosts in your domain. If you don't, the data isn't being transferred
for some reason ... probably a bad serial number.
--
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