Here is an example how you write a perl script that moves itself into the background (might not work on windows...):
!/usr/bin/perl
use strict;
use warnings;
my $ret_val = fork();
if (! defined $ret_val){
die "Can't fork(): $!";
} elsif ($ret_val == 0){
# do your daemon tasks here
sleep 5;
print "Exiting\n";
} else {
exit 0;
}
As for the server you should check the Net::Server module.
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