SMB
proxychains -q enum4linux -a -u "" -p "" 172.16.1.20
proxychains -q enum4linux -a -u "guest" -p "" 172.16.1.20
proxychains -q smbmap -u "" -p "" -P 445 -H 172.16.1.20
proxychains -q smbmap -u "guest" -p "" -P 445 -H 172.16.1.20
smbclient -U '%' -L //172.16.1.20
smbclient -U ‘guest' -L //172.16.1.20