App_Offline.htm, taking site down for maintenance

Posted by Vipin on Geeks with Blogs See other posts from Geeks with Blogs or by Vipin
Published on Wed, 28 Mar 2012 14:25:36 GMT Indexed on 2012/04/02 11:31 UTC
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There is much simpler and graceful way to shut down a site while doing upgrade to avoid the problem of people accessing site in the middle of a content update.

Basically, if you place file with name 'app_offline.htm' with below contents in the root of a web application directory, ASP.NET will shut-down the application, and stop processing any new incoming requests for that application.

ASP.NET will also then respond to all requests for dynamic pages in the application by sending back the content of the app_offline.htm file (for example: you might want to have a “site under construction” or “down for maintenance” message).

Then after upgrade, just rename/delete app_offline.htm file…and the site would be back to normal.

Just remember that the size of the file should be greater than 512 bytes, doesn't matter even if you add some comments to it to push the byte size as long as it's of the size greater than 512 - it'll work fine.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html http://www.w3.org/1999/xhtml">http://www.w3.org/1999/xhtml" >
<head>
    <title>Maintenance Mode - Outage Message</title>
</head>
<body>
    <h1>Maintenance Mode</h1>

    <p>We're currently undergoing scheduled maintenance. We will come back very shortly.</p>

    <p>Sorry for the inconvenience!</p>



</body>
</html>

Developer IT

App_Offline.htm, taking site down for maintenance - Developer IT

App_Offline.htm, taking site down for maintenance

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