Glossary

Admin — the account that manages the server. The first account created is one; it also keeps ordinary files like anyone else.

App — an installable piece of Nextcloud: the Files app, the DAV app, and the store's extras share the word. Apps bring features and upgrade duties in equal measure.

App password — a separate, revocable credential for one program or device, accepted at the machine doors (WebDAV and friends) but never at the web login. The right key for anything that isn't you typing.

App store — the catalogue built into the admin pages; where the Calendar web app, Deck, Notes, and the rest come from.

Background jobs — the server's housekeeping (expiring, tidying, notifying), run in passes. Something must ring for them; cron is the dependable bell.

CalDAV — the calendar protocol: events as .ics text files, moved with WebDAV's verbs. Core machinery in Nextcloud; proven in transcript t05.

CardDAV — the same arrangement for contacts, as vCard files, at a sibling address.

Conflict copy — what a sync client keeps when a file changed in two places at once: both versions, one renamed, no silent winner.

Data folder (data directory) — the ordinary folder holding every user's files, versions, and trash. Half of the server; the half that survives.

Federation — server-to-server sharing between separate Nextclouds, addressed like email for people.

Index (file index) — the database's catalogue of what files exist and whose they are. Must agree with the disk; occ files:scan reconciles them.

Maintenance mode — the server's polite freeze: users see a notice, clients pause, and the admin works on a still target.

occ — the command-line tool in every Nextcloud folder; installer, stethoscope, and repair kit in one.

OCS API — the REST door the web page itself uses for sharing and much else; what scripts should call.

Origin header — the browser's statement of which site a form came from. The login checks it; scripts forget it (transcript t01).

Public link — a share addressed to a random token instead of a person. Whoever holds the link holds the file.

Request token — a one-page credential proving a form submission came from the page the server issued, not a replay.

Skeleton files — the starter documents and folders every new account is stocked with.

Trusted domain — a name or address the server agrees to answer to; anything else gets a warning page.

Version — a file's kept old self, taken when it is overwritten, listed under its Details and restorable in a click.

WebDAV — HTTP with extra verbs (PUT, PROPFIND, and friends) for files; the one door the desktop client, the phone apps, and this guide's curl all use.