Disabling Site Temporarily Using NukeSentinel
There are times during the course of maintaining / operating a *nuke site where one would like to disable user access to the site while still allowing an admin user to access the site and perform whatever they need to do. With the 2.6.xx line of NukeSentinel™ and above this is as easy as setting the Site Enabled "switch" to Site Disabled. Then, once you are finished, you may simply change it back to Site Enabled again. Here is what the NukeSentinel™ switch looks like (to the right).
Now the site will display a "Site is down for maintenance" type message when either anonymous or a registered/logged in user hits the site until this switch setting is reversed. A previously logged in admin will still see a fully operational site with just a "Site Disabled" message at the very top as a reminder that he/she will need to re-enable the site once they are done with their maintenance activity.
