I am trying to open a series of sockets (10) to receive some data. As soon as a new one is opened the previous one is closed with FIN / Fin ACK etc. Please tell me if this approach should work or what is wrong with it. Do I HAVE to Fork or thread etc.? This is my 1st. perl prog.

This is the code. 

#!/usr/bin/perl -w

$IP_Addr = "ss6";
#$TCP_port = (1025);

print "Enter start TSG port: "; chomp ($TCP_port = <stdin>);
print "Enter last TSG port: "; chomp ($last_TSG = <stdin>);

use IO::Socket;

while ($TCP_port <= $last_TSG) {
        open_TSG ($IP_Addr, $TCP_port);
        $TCP_port +=1 ;
                             }



sub open_TSG {
#       use IO::Socket;
        $remote = IO::Socket::INET->new(
                        Proto => "tcp",
                        PeerAddr => $IP_Addr,
                        PeerPort => $TCP_port,

                )
        or die "Cannot conect to port $TCP_port at $IP_Addr";
        $response = <$remote>;
        print "$TCP_port active\n";
        print $remote "g\n";

             }



 while ( <$remote> ) {print  </dev/null> }

[download]

In reply to IO socket closed when new one is opened. by XComms

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.