Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:

Fewer Letters	More Letters
AP	WiFi Access Point
IMAP	Internet Message Access Protocol for email
LXC	Linux Containers
NAS	Network-Attached Storage
Plex	Brand of media server package
PoE	Power over Ethernet
SMTP	Simple Mail Transfer Protocol
SSH	Secure Shell for remote terminal access
TLS	Transport Layer Security, supersedes SSL
VPN	Virtual Private Network
nginx	Popular HTTP server

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