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#!/usr/bin/perl use IO::Socket; # ******************************************************************** # pscanner : portscan hosts using a tcp connection through # IO::Socket module and prepackaged port-numbers RFC list # # Fri Oct 4 10:50:44 EDT 2002 # ******************************************************************** print "Enter the name of the server you would like to scan\n"; chomp( my $server = <STDIN> ); print "What port would you like to start at\? \(1-65000\)\n"; chomp( my $start = <STDIN> ); ## Store portlist in @portlist open( PORTLIST, "./port-numbers" ) or die "Unable to open portlist: $! +"; my @portlist = <PORTLIST>; close(PORTLIST); chomp(@portlist); foreach (@portlist) { next if $_ =~ /^\#/; @whatever = ( split ( /\s+/, ( split (/\//) )[0] ) ); ( $service, $portnumber ) = ( @whatever[0], @whatever[1] ); $servicelist{"$portnumber"} = "$service"; } for ( $portnumber = $start ; $portnumber <= 65000 ; $portnumber++ ) { $sock = IO::Socket::INET->new( PeerAddr => $server, PeerPort => $portnumber, Proto => 'tcp' ); if ($sock) { print "Connected on port $portnumber $servicelist{$portnumber} +\n"; } else { # print "$port failed\n"; } } # End for =head1 NAME pscanner - Scans host on TCP ports and pulls service type from RFC por +t-numbers list =head1 DESCRIPTION Determines which TCP ports and services a host may be using by opening a TCP socket connection. Used for determining what services are runni +ng on a specific host. =head1 PREREQUISITE IO::Socket module Pre-packaged RFC port numbers list =head1 COREQUISITE None =head1 README Determines which TCP ports and services a host may be using by opening a TCP socket connection. Used for determining what services are runni +ng on a specific host. =pod OSNAMES Unix, Linux, Win32 =pod SCRIPT CATEGORIES Networking =cut

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