# No-protocol-handler-was-valid error

**URL:** <https://www.ruby-forum.com/t/no-protocol-handler-was-valid-error/113301>\
**Category:** Rails\
**Created:** [August 29, 2007, 5:45pm UTC](https://www.ruby-forum.com/t/no-protocol-handler-was-valid-error/113301 "2007-08-29T17:45:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![doug](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/dbc845/32.png) [@doug](https://www.ruby-forum.com/u/doug)\
**Post date:** [August 29, 2007, 5:45pm UTC](https://www.ruby-forum.com/t/no-protocol-handler-was-valid-error/113301/1 "2007-08-29T17:45:03Z")

</div>

I am running a Mongrel cluster with an Apache front-end. I am loading  
the following modules in the httpd.conf file:

LoadModule proxy\_module modules/mod\_proxy.so  
LoadModule proxy\_balancer\_module modules/mod\_proxy\_balancer.so  
LoadModule proxy\_ftp\_module modules/mod\_proxy\_ftp.so  
LoadModule proxy\_http\_module modules/mod\_proxy\_http.so  
LoadModule proxy\_connect\_module modules/mod\_proxy\_connect.so

Given those conditions, can anyone give me a reason why I would be  
getting the the following error message when I attempt to access the  
main/column page:

Forbidden  
You don’t have permission to access /main/column on this server.

The above error message is accompanied by the following entry in the  
Apache error log:

[Wed Aug 29 02:19:53 2007] [warn] proxy: No protocol handler was valid  
for the URL /main/column. If you are using a DSO version of mod\_proxy,  
make sure the proxy submodules are included in the configuration using  
LoadModule.

Thanks for any input.

```
   ... doug
```