Multisite Maintenance Mode

Multisite Maintenance Mode solves the problem of site users making content/database changes while performing maintenance on large multisite networks. It works by directing every user (except network admins) to their homepage when they attempt to log in. A message is displayed in the admin bar to direct them on where to find more information. Anonymous users can still view the site normally.

• Unzip and upload to wp-content/plugins
• Network activate the plugin
• Go to Network Settings -> Multisite Maintenance Mode
• Turn on Multisite Maintenance Mode

1. 

   The MMM settings page.

0.2.2

• Added Español translation. Props to Andrew Kurtis of WebHostingHub

0.2.1

• Tested with WordPress 4.2.2

0.2.0

• Now ready for translation!
• Consolidated the PHP for easier maintenance.
• Added filter ‘mmm_allow_user_with_capability’ to allow lower-level users to access the WordPress admin.

0.1

• Initial code.