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Posted by Malcolm Dew-Jones on 10/27/94 11:33
Michael (INERFAZE@aol.com) wrote:
: "Malcolm Dew-Jones" <yf110@vtn1.victoria.tc.ca> wrote in message
: news:438d4452$1@news.victoria.tc.ca...
: > Michael (INERFAZE@aol.com) wrote:
: >
: > : "Shane" <shane@weasel.is-a-geek.net> wrote in message
: > : news:pan.2005.11.30.02.31.11.424715@weasel.is-a-geek.net...
: > : > On Wed, 30 Nov 2005 01:38:05 +0000, Michael wrote:
: > : >
: > : >> "Carl" <_Nospam_@_DO_NOT_.USE> wrote in message
: > : >> news:7d7jf.20683$BZ5.9444@newssvr13.news.prodigy.com...
: > : >>> Michael wrote:
: > : >>>> Does someone have a reliable routine to get the domain name of the
: > : >>>> current user of a web page? Something like NSLookup. I have no
: > : >>>> problem
: > : >>>> getting their IP address, but I also want the domaine name.
: > : >>>> Thanks,
: > : >>>> -Michael
: > : >>>
: > : >>> how about:
: > : >>> http://www.php.net/manual/en/function.gethostbyaddr.php
: > : >>>
: > : >>> Carl.
: > : >>
: > : >> It may be just me, but that is the first think I tried and it gave me
: > an
: > : >> IP
: > : >> address not a domain name.
: > : >> Maybe it's the... "or a string containing the unmodified ip_address
: > on
: > : >> failure"... that is getting me.
: > : >> -Michael
: > : >
: > : > er you want to do a reverse dns lookup?
: > : > Thats fraught with issues.
: > : >
: > : > --
: > : > Hardware, n.: The parts of a computer system that can be kicked
: > : >
: > : > The best way to get the right answer on usenet is to post the wrong
: > one.
: > : >
: >
: > : I'm not sure what you mean, when I type "NSLookup 70.98.111.52"
: > : at the command prompt I get back "Name: box52.bluehost.com"
: > : It works instantally and it works every time (that I have tried.)
: > : I want to get that same answer via PHP.
: >
: > Try some other ips.
: >
: > An ip does not need a name, (and can have many).
: >
: > Even if it has a name, it does not need reverse lookup data.
: >
: > Even when that data is available, the name you get from the reverse lookup
: > is not necessarily the same name that anyone uses to access the host by
: > name. Indeed if you then lookup the name (i.e. you name you just got from
: > the reverse lookup) then you may find it does not even resolve to the same
: > ip you originally looked up.
: >
: > As for the gethostbyaddr function, it appears to return the original
: > (input) address if it can't find a better name to go with it.
: >
: I am happy with the answer I get from NSlookup. But I am not familar with
: getting results from system().
: Can I use the system command to return the NSLookup result?
Lookup "backtick operator" or "exec". (Both are linked from the manual
page for "system").
However, nslookup has the identical issue, if you lookup an ip that does
not have reverse data available then you won't get a name back, and etc.
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