Port 21 | FTP

Identity hosts running FTP

nmap -sV -p 21 --open <IP>

Manual banner grab

telnet <IP> 21
nc <IP> 21 

All Nmap scripts.

nmap --script ftp-* -p 21 <IP>

Anonymous check with Metasploit

use auxiliary/scanner/ftp/anonymous

Download all files from FTP

wget -m ftp://anonymous:anonymous@10.10.10.98
wget -m --no-passive ftp://anonymous:anonymous@10.10.10.98