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I'm running x64 Ubuntu 12.04. I did a simple apt-get install dokuwiki to install DokuWiki. And I'm trying to follow the directions located here: http://www.dokuwiki.org/auth:radius to get Radius authentication working. Things seemed to install OK. Under Configuration Manager I selected Authentication backend to be "Radius" and filled in the Radius details at the bottom.

Now, however, whenever I try to log into the Wiki, my browser gives me the following error:

No data received

I checked /var/log/apache2/error.log and see this:

[Tue Jul 10 22:22:14 2012] [notice] child pid 5270 exit signal Segmentation fault (11)

I'm fairly sure the Radius server is setup correctly as it correctly authenticates with my squid proxy and other stuff on the network.

But this is about the extent of my Linux troubleshooting skills. Can anyone suggest steps for me to follow to help track down what's causing apache2 to segfault short of attaching with gdb and issuing a set follow-fork-mode? I'm also open to just hearing suggestions for similar Wiki software that just authenticates radius out of the box.

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I fear gdb would be your best shot here. PHP isn't exactly debugging friendly. –  Creshal Jul 11 '12 at 10:01
    
I'd prefer to stay away from that. Is there any other wiki software that just authenticates with Radius right out of the box? –  mrduclaw Jul 11 '12 at 18:02

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