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

Fewer Letters	More Letters
CF	CloudFlare
CGNAT	Carrier-Grade NAT
DNS	Domain Name Service/System
HTTP	Hypertext Transfer Protocol, the Web
HTTPS	HTTP over SSL
IP	Internet Protocol
LXC	Linux Containers
NAT	Network Address Translation
RPi	Raspberry Pi brand of SBC
SBC	Single-Board Computer
SSH	Secure Shell for remote terminal access
TLS	Transport Layer Security, supersedes SSL
VPN	Virtual Private Network
VPS	Virtual Private Server (opposed to shared hosting)
nginx	Popular HTTP server

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