I rarely use this information in my program for serious purposes so I just stuff with REMOTE_HOST || REMOTE_ADDR, which will give me at least the IP address. If the request came by proxy than I would get that proxy IP address instead. I know there exists HTTP headers to distinguish these proxies in between, but I'll always have to lookup the references over the Internet to recall again about HTTP_VIA and HTTP_X_FORWARDED_FOR.

Here's a page discussing various proxy types and how they fill in those related HTTP headers. It would tell you right away your IP address, whether you're coming by a proxy, and if so, the proxy's IP address as well. You seem to have really consider it if you need accurate remote host or IP address information.


Open source softwares? Share and enjoy. Make profit from them if you can. Yet, share and enjoy!


In reply to Re: Retrieving the REMOTE HOST by naikonta
in thread Retrieving the REMOTE HOST by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • 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, details, 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, summary, 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.