- 21 - FTP
- 22 - SSH
- 25 - SMTP
- 53 - DNS
- 80/443 - HTTP(s)
- 111 - NFS
- 135 - RPC
- 139/445 - NetBIOS/SMB
- 161 (UDP) - SNMP
- Wordpress
- Finger (Solaris)
- Active Directory
- Public exploits
- Web application attacks
- Password attacks
- Buffer overflows
- Active Directory
- Metasploit