Question

I'm getting this error with my local install of FogBugz and I'm using a Threat Management Gateway, what do I need to change or configure to get this working?

'Error Code: 500 Internal Server Error. The request was rejected by the HTTP filter. Contact the server administrator. (12217) '

Answer 1

Threat Management Gateways, such as Forefront, or a Internet Security & Acceleration server (ISA) offer great control over a network but can sometimes interfere with the HTTP/HTTPS traffic of FogBugz causing erratic behavior.

For example, you may get an error like this:

'Error Code: 500 Internal Server Error. The request was rejected by the HTTP filter. Contact the server administrator. (12217) '

While we don't claim to be experts of TMG or ISA software, we have been able to identify what settings seem to work for most customers. When the FogBugz web server is published via a Threat Management Gateway (TMG) or Internet Security & Acceleration server (ISA) web publishing rule there a few settings that must change which include:

NOTE: These settings can vary based on the data within your FogBugz system and how you have FogBugz configured.

1. Increasing the Maximum URL Length (default is 10240), suggested value: 20480
2. Increasing the Maximum Query Length (default is 10240), suggested value: 20480
3. Increasing the Maximum Headers Length (default is 32768), suggested value: 65536

For more information about ISAs: http://www.isaserver.org/tutorials/configuring-isa-server-2006-http-filter.html

If you have any questions, please don't hesitate to contact us.