open-consul/website/pages/docs/commands/maint.mdx

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---
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layout: docs
page_title: 'Commands: Maint'
sidebar_title: maint
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description: |
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The `maint` command provides control of both service and node maintenance mode
---
# Consul Maint
Command: `consul maint`
The `maint` command provides control of service maintenance mode.
Using the command, it is possible to mark a service provided by a node or all the services on the
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node as a whole as "under maintenance". In this mode of operation, the service
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will not appear in DNS query results, or API results. This effectively
takes the service out of the pool of available "healthy" nodes of a service.
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Under the hood, maintenance mode is activated by registering a health check in
critical status against a service, and deactivated by deregistering the
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health check.
## Usage
Usage: `consul maint [options]`
#### API Options
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@include 'http_api_options_client.mdx'
#### Command Options
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- `-enable` - Enable maintenance mode on all services on a node. If
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combined with the `-service` flag, we operate on a specific service ID.
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- `-disable` - Disable maintenance mode on all services on a node. If
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combined with the `-service` flag, we operate on a specific service ID.
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- `-reason` - An optional reason for placing the service into
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maintenance mode. If provided, this reason will be visible in the newly-
registered critical check's "Notes" field.
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- `-service` - An optional service ID to control maintenance mode for a given service. By
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providing this flag, the `-enable` and `-disable` flags functionality is
modified to operate on the given service ID.
## List mode
If neither `-enable` nor `-disable` are passed, the `maint` command will
switch to "list mode", displaying any current maintenances. This may return
blank if nothing is currently under maintenance. The output will look like:
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```shell
$ consul maint
Node:
Name: node1.local
Reason: This node is broken.
Service:
ID: redis
Reason: Redis is currently offline.
```