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Server Maintenance Mode

by duckinator

Server Maintenance Mode lets a server owner close the server to everyone except operators with a single command, and reopen it later.

NeoForgeServer-side onlyMIT LicenseOpen source1.21.1

What it does

When maintenance mode is enabled, players who are not operators cannot join the server, while operators can still connect. The state is switched with the maintenance command, which takes on, off or status as its argument. Environment: server-side only, so players join without installing anything. Released under the MIT License, and the source code and issue tracker are public. Files exist for NeoForge 1.21.1 only.

Key features

  1. Join blocking

    With maintenance enabled, connections from players without operator status are refused until it is turned off.

  2. Operator access

    Operators keep the ability to join while the server is in maintenance, so staff can still reach it for repairs.

  3. On, off and status command

    A maintenance command switches the mode on or off, and its status argument reports the current state.

Compatibility

Latest build for each game version and loader.

1.21.11.7
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

How it compares

Full comparison

Minecraft-Discord Protect is also server-side only and open source under the MIT License, for NeoForge 1.21.1, but it is aimed at Discord linking rather than closing the server. DisableCommand is server-side only for NeoForge 1.21.1 – 1.21.11 and is not open source.

ModLoadersGame versionsEnvironmentUpdated
Server Maintenance ModeNeoForge1.21.1Server-side only2026-04-29
Minecraft-Discord ProtectNeoForge1.21.1Server-side only2026-07-16
DisableCommandNeoForge1.21.1 – 1.21.11Server-side only2026-07-18

Questions

Does Server Maintenance Mode need to be installed on clients?

No. The mod is server-side only, so players join without installing it.

Can operators still join while maintenance mode is on?

Yes. Operators are allowed to join the server while maintenance mode is enabled.

In the catalog

Server Maintenance Mode is one of 8,016 Management mods on ModsFinder, and one of 2,689 Management mods for NeoForge. 32,366 mods support Minecraft 1.21.1.

Management mods8,016NeoForge modsMods for 1.21.132,366

More from duckinator

All projects
DEdeathwatch1.21.1

Similar mods

Cherished Worlds1.12.2 – 26.3Default Options1.18 – 26.3Resourcify1.8.9 – 26.3Rebind Narrator1.16.1 – 26.1.2Paxi1.19.2 – 26.1.2Starter Kit1.16.5 – 26.3

What the author says

Server Maintenance Mode provides a /maintenance [on|off|status] command, to toggle a "maintenance mode". When maintenance mode is enabled, it'll prevent anyone who is not an op from joining the server.
duckinator, on the Modrinth page

Official listing

Owner
duckinator
Published
2026-04-29
Updated on Modrinth
2026-04-29
Facts verified
2026-10-15

Tags

ManagementUtility
Open on ModrinthCompare