Enumeration by Port Number

FTP port 21 open

    Fingerprint server
        telnet ip_address 21 (Banner grab)
        Run command ftp ip_address
        ftp@example.com
        Check for anonymous access
            ftp ip_addressUsername: anonymous OR anonPassword: any@email.com
    Password guessing
        Hydra brute force
        medusa
        Brutus
    Examine configuration files
        ftpusers
        ftp.conf
        proftpd.conf
    MiTM
        pasvagg.pl

SSH port 22 open

Telnet port 23 open

Sendmail Port 25 open

DNS port 53 open

TFTP port 69 open

Finger Port 79 open

Web Ports 80, 8080 etc. open

Portmapper port 111 open

NTP Port 123 open

NetBIOS Ports 135-139,445 open

SNMP port 161 open

LDAP Port 389 Open

PPTP/L2TP/VPN port 500/1723 open

Modbus port 502 open

rlogin port 513 open

rsh port 514 open

SQL Server Port 1433 1434 open

Citrix port 1494 open

Oracle Port 1521 Open

NFS Port 2049 open

Compaq/HP Insight Manager Port 2301,2381open

MySQL port 3306 open

RDesktop port 3389 open

Sybase Port 5000+ open

SIP Port 5060 open

VNC port 5900^ open

X11 port 6000^ open

Tor Port 9001, 9030 open

Jet Direct 9100 open

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