Ein Skript, das tcpdump verwendet:

 #!/usr/bin/perl
$LIMIT= shift || 50;
$|=1;
open(STDIN,"/usr/sbin/tcpdump -lnx -s 1024 dst port 80 |");
while (<>){
        if(/^\S/){
                last unless $LIMIT--;
                while($packet=~/(GET|POST|WWW-Authenticate|Authorization).+/gx){
                        print "$client -> $host\t$&\n";
                }
                undef $client;
                undef $host;
                undef $packet;
                ($client,$host)=/(\d+\.\d+\.\d+\.\d+).+ > (\d+\.\d+\.\d+\.\d+)/x if /P \d+:\d+\((\d+)\)/ && $1 > 0;
        }
        next unless $client && $host;
        s/\s+//;
        s/([0-9a-f]{2})\s?/chr(hex($1))/eg;
        tr/\x1F-\x7E\r\n//cd;
        $packet .=$_;
}