This plugin is outdated and might not be supported anymore
Multisite Maintenance Mode

Multisite Maintenance Mode

Details
View on WordPress

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.

Details

Plugin code:
multisite-maintenance-mode
Plugin version:
0.2.2
Outdated:
Yes
WP version:
3.3.1 or higher
PHP version:
or higher
Test up to WP version:
4.2.38
Total installations:
10
Last updated:
2015-06-29
Rating:
Times rated:
1
login
maintenance
multisite