LOGIN TO FTP
So you have run an Nmap scan and you have open port 21 that has been identified as being ftp. What next?
Run the NMap scan using the -A flag. This will tell you if the ftp allows anonymous login.
The very simplest command you can enter at the prompt is:
ftp 172.16.195.202
Replace the IP address above with the IP address of the target machine.
If a successful connection has been made you will now be prompted to enter the username. If the NMap scan indicates that anonymous login is permitted simply type:
anonymous
If you know the ftp username enter the following:
ftp username@172.16.195.202