said:
Hi,
>> --My Question--: Is OS/2's NSLOOKUP pretty much the same
>> as *nix's HOST? Or am I missing something and the guy in the
>> article was doing something other than a simple DNS query?
>I would expect that the programs were originally from UNIX.
The OS/2 port is from a BSD implementation, which is what allows IBM to
keep the source closed.
>> I really don't want to worry about PolarBar going after me for
>> doing the following:
>I doubt that this would be considered hacking into their system.
True enough. A DNS lookup is rather different than a zone transfer.
Of course, the ruling itself means little until it wends its way through
the courts until both parties are no longer willing to purse the issue.
>> [G:\]host polarbar.com
>> polarbar.com = 62.70.53.205
>> [G:\]host 62.70.53.205
>> Can not resolve 62.70.53.205 to a name
>Normally one would expect the reverse DNS to resolve to something since
>this is a real web site.
It depends on the ISP. An explicit reverse DNS lookup gets the same
results
[j:\tmp]rdns 62.70.53.205
dig ptr 205.53.70.62.in-addr.arpa
; <<>> DiG 9.3.2 <<>> ptr 205.53.70.62.in-addr.arpa
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 47240
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;205.53.70.62.in-addr.arpa. IN PTR
;; AUTHORITY SECTION:
70.62.in-addr.arpa. 1793 IN SOA auth200.ns.uu.net.
hostmaster.s.uu.net. 2007111601 86400 7200 864000 28800
;; Query time: 56 msec
;; SERVER: 207.217.126.81#53(207.217.126.81)
;; WHEN: Mon Jan 21 09:16:12 2008
;; MSG SIZE rcvd: 110
The site is probably virtual hosted and the hosting site has not to set up
a PTR record to support reverse lookups.
>> [G:\]host polarbar.net
>> polarbar.net = 66.6.73.189
>> [G:\]host 66.6.73.189
>> 66.6.73.189 = 66-6-73-189.cttel.net
>Probably hosted on someone's DSL connection.
Could be, although the effect is not just because it's a DSL connection.
You can get the same kind of response for any IP. It depends on the PTR
record. This used to be the case for scoug.com when the server was at
Jerry's house. The IP was static, but we never got around to getting the
default PTR record updated.
>It is normal for the forward and reverse to not match for domains hosted
>at home or by hosting companies on shared or virtual systems.
So true.
Steven
--
----------------------------------------------------------------------
"Steven Levine" MR2/ICE 3.00 beta 10pre #10183 eCS/Warp/DIY/14.103a_W4 etc.
www.scoug.com irc.ca.webbnet.info #scoug (Wed 7pm PST)
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