Similar to ハンドルシステム

Remote Shell

Link-local address

Localhost

Forward-confirmed reverse DNS

Request for Comments

April Fools' Day Request for Comments

Internet Engineering Task Force

Character Generator Protocol

Daytime Protocol

Discard Protocol

Echo Protocol

User Datagram Protocol

Trivial File Transfer Protocol

Internet Protocol

Internet Control Message Protocol

Transmission Control Protocol

WHOIS

Internet abuse

Email address

Address Resolution Protocol

Telnet

Domain Name System

Reverse Address Resolution Protocol