Glossary

The words these docs use.

Client : The app you sit in front of. Draws the screen, sends your mouse and keys.

Host : The computer being shared. Grabs the screen and applies your input.

Coordinator : The service holding accounts and the computer list. It introduces two computers and carries no session content.

Relay : A server that passes session packets when the two computers cannot reach each other. It cannot read them.

Direct connection : A session with nothing in the middle. Faster, and always tried first.

Code check (SAS) : An optional 6-digit check, off by default. Both ends work the digits out from the session key, so different digits mean somebody is in the middle. See trust.

Trusted viewer : An app a shared computer has already admitted, remembered so later connections are silent.

Claim code : A one-time code from the dashboard that links a computer to your account.

Token : The per-computer key an app holds after signing in. Cancelled by removing the device.

Screen grab : Reading the far screen. It needs a real display to read.

Encoder : The chip that squeezes frames. NVENC on NVIDIA, Quick Sync on Intel, VideoToolbox on Apple, VA-API on Linux.

Chroma : How much colour detail survives. 4:2:0 drops some and softens coloured text. 4:4:4 keeps it.

Keyframe : A full frame that does not lean on earlier ones. Big, and used to recover.

Ceiling : The top rate a quality preset allows. The real rate stays underneath it.

Send pacing : Spreading packets over time instead of firing them in a burst.

Delay (MS) : How long it takes for something you do to reach the far computer and come back.

Loss : The share of packets that never arrived. Over 2% is a network problem.

Keyboard grab : Sending your keys to the far computer, including shortcuts your own system would eat.

Headless : A computer with no monitor. It needs a screen, real or virtual, before it can send anything but black.