tcp 20-21 - FTP/File Transfer Protocol, tcp 22 - SSH/Secure Shell Protocol, tcp 23 - Telnet Protocol, tcp 25 - SMTP/Simple Mail Transfer Protocol, udp 53 - DNS/Domain Name System, udp 67/68 - DHCP/Dynamic Host Configuration Protocol, tcp 80 - HTTP/Hypertext Transfer Protocol, tcp 110 - POP3/Post Office Protocol, udp 137/139 - NET BIOS/NET BT/Network Basic Input/Output System , tcp 143 - IMAP/Internet Message Access Protocol, udp 161/162 - SNMP/Simple Network Management Protocol, tcp 389 - LDAP/Lightweight Directory Access Protocol, tcp 443 - HTTPS/Hypertext Transfer Protocol Secure, tcp 445 - SMB/CIFS/Server Message Block Protocol/Common Internet File System, tcp 3389 - RDP/Remote Desktop Protocol,

NETWORK PORTS AND PROTOCOLS

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