asp.net get debug stacktrace in browser

Question

I have a debug=true enabled deployment of my website on a server somewhere. When I open it in a browser on the server, I get a stacktrace for my errors. When I navigate to that page from another machine, I get squat. How do I enable the stacktraciness for remote machines?

EDIT

stacktrace:

squat (as in diddly squat):

TO RECREATE

Create a vanilla Single Page App in Visual Studio and migrate everything to your database, web deploy that to Windows Server server somewhere with debug=true, attempt to debug connection string woes, fail as browsing the site from localhost on the server gives different behavior than browsing the site from an external machine.

As in "diddly squat", I think. urbandictionary.com/define.php?term=diddly%20squat — ADyson
– ADyson, Commented Feb 17, 2017 at 16:48

ADyson · Accepted Answer · 2017-02-17 16:53:21Z

3

This feature is by design, so that the internals of your program don't get displayed to users - who might be frightened by them and think they have broken the internet - and malicious individuals who might use the information to try and hack at your data (e.g. if it exposes info about the database). It enables you instead to display a user-friendly error message of your choice.

However, if you want to override this feature in your non-live environments to make testing easier, modify your web config as follows, to set "customErrors" to "Off":

<system.web>
...
  <customErrors mode="Off"/>
...
</system.web>

More info is here: https://msdn.microsoft.com/en-gb/library/h0hfz6fc(v=vs.100).aspx

I would strongly advise you never to do this in a live environment. Instead, handle exceptions and log them to your server's event log, so you can trace any issues.

answered Feb 17, 2017 at 16:53

ADyson

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3 Comments

Him Over a year ago

I have two websites running on the server, one is available publicly, one is available on the internal network. I am using the internal network one for debugging, but I'd rather not have to RDP into the server to debug it. This is just what I needed, thanks much. Bonus points if there is an option to wrap this into my deployment process without having to add and delete lines every time...

ADyson Over a year ago

use config transforms in Visual Studio. msdn.microsoft.com/en-us/library/dd465318(v=vs.100).aspx

Him Over a year ago

Awesome. You get free (gratis) beer if you're ever in Atlanta.

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