On Aug 11, 2009, at 11:05 AM, Dominic DePasquale wrote:

>> On Tue, Aug 11, 2009 at 10:49 AM, Andrew Mortensen <[email protected] 
>> > wrote:
>
>>> On Aug 11, 2009, at 9:32 AM, Dominic DePasquale wrote:
>>>
>>> Hello,
>>>
>>> Has anyone been successful getting the apache fiter working with  
>>> WebSphere's IHS? I've followed the instructions that IBM provided  
>>> for building modules into IHS 
>>> http://publib.boulder.ibm.com/httpserv/ihsdiag/othermodules.html 
>>>  with no luck.
>>>
>>> The error:
>>> /opt/IBM/HTTPServer1/conf/httpd.conf: Cannot load /opt/IBM/ 
>>> HTTPServer1/modules/mod_cosign.so into server: /opt/IBM/ 
>>> HTTPServer1/modules/mod_cosign.so: undefined symbol: SSL_set_fd
>>>
>>> I suspect the problem is that IHS uses mod_ibm_ssl.so instead of  
>>> an openSSL module.
>
>> Are you using IBM's httpd?
>
> IBM HTTP Server is the full product name. I'm not sure if IBM's  
> httpd and IHS are synonymous. I believe they are.

IBM's httpd is a modified form of Apache 2.0 which is built with the  
threaded ("worker") MPM. Check the output from httpd -V to be sure.

The Apache2 mod_cosign is not thread-safe. It requires the prefork  
MPM. Unfortunately, you can't get a prefork version of IBM's httpd,  
since IBM doesn't provide the source, so you're out of luck unless you  
can switch to a prefork version of Apache's httpd.

Making mod_cosign thread-safe is possible, but would take quite a bit  
of work. Someone from the cosign development team might take on that  
work with the right motivation. Good patches are also welcome.

andrew

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