Beefy Boxes and Bandwidth Generously Provided by pair Networks
Pathologically Eclectic Rubbish Lister

How can I get a remote user's IP using Perl?

( #23449=categorized question: print w/ replies, xml ) Need Help??
Contributed by Anonymous Monk on Jul 20, 2000 at 22:09 UTC
Q&A  > CGI programming

Answer: How can I get user's IP using Perl?
contributed by cwest

For that matter, you could use remote_host() from

Also, try this:

#!/usr/bin/perl -w use strict; $|++; use CGI; my $cgi = CGI->new; print $cgi->header, $cgi->start_html, $cgi->pre( ( map { "$_\t$ENV{$_}\n" } keys %ENV ) ), $cgi->end_html;
That was untested, but I'm pretty sure it's right :-)
Answer: How can I get a remote user's IP using Perl?
contributed by infoninja

The remote user's IP address is in $ENV{'REMOTE_ADDR'}, although it's pretty forge-able.

Answer: How can I get a remote user's IP using Perl?
contributed by sinan

Check Environmental Variables for a snippet that prints out all the environmental variables.


Please (register and) log in if you wish to add an answer

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others taking refuge in the Monastery: (3)
    As of 2016-08-27 06:06 GMT
    Find Nodes?
      Voting Booth?
      The best thing I ever won in a lottery was:

      Results (378 votes). Check out past polls.