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Put the website in Maintenance Mode (Under Construction)

, 25 Dec 2011 CPOL
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This Tip/Trick shows how to make the website available only for the local clients
First, you need to add a key/value to your web.config file, so you can turn the maintenance mode ON or OFF.

<add key="MaintenanceMode" value="false"/> <!-- true/false -->

Then put this code block in the Application_BeginRequest of the Global.asax

void Application_BeginRequest(object sender, EventArgs e)
          if (ConfigurationManager.AppSettings["MaintenanceMode"] == "true")
              if (!Request.IsLocal)
Now if you set the "MaintenanceMode" key in the config to true, all the requests from the remote clients will be redirected to the maintenance.aspx page, but the requests from local client will be served normally.

Also if you want to make the application available for certain IPs (to test the application from different machines or restrict the usage to them only), you may include their IPs in the web config and add this to your code:

 if (!Request.IsLocal && !allowedIPs.Contains(Request.UserHostAddress))


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Bahram Ettehadieh
Web Developer
Iran (Islamic Republic Of) Iran (Islamic Republic Of)
I hold a BS degree in software engineering and am a Microsoft Certified Solution Developer(MCSD).
I have more than 8 years of experience in .NET developement, mostly web develop using C# and ASP.NET.

Comments and Discussions

Question5 out of 5... Nice trick Pinmemberrohit kakria15-Jun-12 0:16 
QuestionHow to overide login.aspx? Pinmembertoy4fun14-May-12 21:45 
GeneralHttpContext.Current.RewritePath("maintenance.aspx"); gives f... PinmemberMukund Thakker23-Feb-12 1:17 
GeneralIt might be better to redirect to a html page instead of .as... PinmemberTomz_KV3-Jan-12 10:05 
GeneralReason for my vote of 5 Thanks for this nice Configuration. PinmemberMember 43208443-Jan-12 8:39 
GeneralReason for my vote of 5 its very simple Pinmembermanojbdhobale28-Dec-11 20:05 
GeneralReason for my vote of 5 nice tip PinmemberMonjurul Habib28-Dec-11 9:17 
GeneralReason for my vote of 5 Simple to understand. Basic concept ... PinmemberSunil Mane 00718-Dec-11 19:17 
GeneralReason for my vote of 3 works, just not elegant PinmemberReiss29-Nov-11 5:49 
GeneralReason for my vote of 5 Thanks for sharing. Pinmemberlinuxjr5-Jul-11 6:11 
GeneralReason for my vote of 5 Nice tips/Tricks.. Very simple in u... Pinmemberjawed.ace5-Jul-11 2:55 
GeneralThanks for the comment, fixed it PinmemberBahram Ettehadieh5-Jul-11 1:15 
GeneralI think a typo my have crept into the spelling of maintenanc... PinmemberGeorge Swan4-Jul-11 20:54 
GeneralReason for my vote of 5 Excellent tip; very simple and pract... PinmemberDrABELL4-Jul-11 10:42 
Reason for my vote of 5
Excellent tip; very simple and practical solution to the common problem! 5*

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