So you’ve learnt how to get an IP address and now it is time to learn how to find out what that persons using. Everything that someone does over the internet is done over a port. There are different ports for common services. Ie:
Port 80 is the port for Http (web sites).
Port 21 is for Telnet
Port 23 is for FTP
port 139 is the netbios port ;) (ie. the file sharing port)
What does this mean? It means that you can check what internet services are being used on one machine or you can scan a whole range of IP addresses for one individual service which you can use to hack into the machine. Say you wanted to scan a huge range of machines to see if they have BO installed. You just type in an IP address (use a wildcard at the end (ie . Eg 122.54.0.*)) Then you type the port in (31337 for BO) and scan. If u You don’t find anything, check the next range of ports. In fact, many port scanners allow you to specify a range, which makes it easy. The port scanner in BO is the best example I can think of that people will know. If you were serious about hacking however you would use a good port scanner like nmap.
Nmap supports stealthing abilities which makes it possible to evade firewalls and stuff and reduce detection, available from www.nmap.org, however, at present, u need to compile it yourself
Port 21 is for Telnet
Port 23 is for FTP
port 139 is the netbios port ;) (ie. the file sharing port)
What does this mean? It means that you can check what internet services are being used on one machine or you can scan a whole range of IP addresses for one individual service which you can use to hack into the machine. Say you wanted to scan a huge range of machines to see if they have BO installed. You just type in an IP address (use a wildcard at the end (ie . Eg 122.54.0.*)) Then you type the port in (31337 for BO) and scan. If u You don’t find anything, check the next range of ports. In fact, many port scanners allow you to specify a range, which makes it easy. The port scanner in BO is the best example I can think of that people will know. If you were serious about hacking however you would use a good port scanner like nmap.
Nmap supports stealthing abilities which makes it possible to evade firewalls and stuff and reduce detection, available from www.nmap.org, however, at present, u need to compile it yourself
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