I've been trying to get a script to post to another script for some time now but to no avail! Sending the LWP POST request to the receiving script and printing out the request/results, I get the following:

POST http://llc.compsys.org/up.cgi Content-Length: 177 Content-Type:
multipart/form-data; boundary=xYzZY --xYzZY Content-Disposition: form-
+data;
name="upload"; filename="success.txt" Content-Length: 36 Content-Type:
text/plain IT WORKED!!! 5th May 2004 11:24am --xYzZY--

It didn't work. 501 (Not Implemented) syntax error Content-Type: text/
+plain
Client-Date: Wed, 05 May 2004 03:37:10 GMT Client-Warning: Internal re
+sponse
501 syntax error

501 syntax error
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Both sending and receiving scripts can be on the same server or 2 separate servers, and will generate the same error. I'm a relative newbie to Perl so I desperately need help on this! Any URLs or FAQs I can refer to to get more info on my troubles? Is it a Perl problem or a webserver one? Much appreciated in advance! Below is my POSTer code:

#!/usr/bin/perl
use CGI::Carp qw(fatalsToBrowser);
use CGI qw(:standard);
use lib 'modules';
use LWP::UserAgent 2.031;
use HTTP::Request::Common 1.22 qw/POST/;
my $ua= LWP::UserAgent->new();
my $url = "http://llc.compsys.org/up.cgi";
my $fullpath_filename = param("upload");
my $filename = lc($fullpath_filename);
$filename =~ s/.*[\/\\](.*)/$1/;

print (header());
print (start_html( -title => 'Upload' ));

if (!$filename) {
   print ("No file specified.<br>\n");
   print qq~
   <form action="upload.cgi" method="post" enctype="multipart/form-dat
+a">
   File upload:
   <input type="file" name="upload" size="60"><br>
   <br>
   <input type="submit" name="Submit" value="Upload">
   </form>
   </body></html>
   ~;
}
else {
   open UPLOADFILE, ">$filename";
   binmode(UPLOADFILE);
   while ( <$fullpath_filename> ){ print UPLOADFILE; }
   close UPLOADFILE;

   print "$filename uploaded!<br>";
   my $fullpath = $ENV{'DOCUMENT_ROOT'}."/cgi-bin/$filename";
   print "FULLPATH = $fullpath<br>";
   print "Above file exists!<br><br>" if -e $fullpath;
   print "Above file does not exist!<br><br>" if !-e $fullpath;

   my $request=POST $url , Content_Type=>'form-data',
   Content => [upload=>[$filename]];
   print $request->as_string; print "<br><br>";

   my $results=$ua->request($request);
   if($results->is_success){
      print "It's good!\n";
      print $results->as_string; print "<br><br>";
   } else {
      print "It didn't work.\n";
      print $results->as_string; print "<br><br>";
      print $results->status_line();
   }
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This is my receiving code:

#!/usr/bin/perl

use CGI qw(:standard);

$filename = param("upload");
$filename =~ s/.*[\/\\](.*)/$1/;
$upload_filehandle = param("upload");

print (header());
print (start_html( -title => 'Upload' ));

if (!$filename) {
   print ("No file specified.<br>\n");
}
else {
   $filename = lc($filename);
   open UPLOADFILE, ">$filename";
   binmode(UPLOADFILE);
   while ( <$upload_filehandle> ){ print UPLOADFILE; }
   close UPLOADFILE;
   print ("<b>$filename</b> upload successful!<br>\n");
}
print ("</BODY>\n</HTML>");
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