[AG-TECH] more certificate issues

[Thomas D. Uram]

Richard:

Can you describe the problem in detail?

Have you looked at the logfiles as I suggested?  If you don't see 
anything wrong there, I'd be happy to take a look to help you out.

The cert request is transferred over http.  If you're using Windows, and 
have multiple protocol-specific proxy servers defined, submission of the 
cert request will fail; you can fix this by specifying only an http 
proxy (temporarily removing the other proxy server specs).

Tom


Christoph Willing wrote:
> 
> On 22/08/2005, at 9:07 AM, Richard Caladine wrote:
> 
>> Dear All,
>>
>> I am still having problems obtaining a certificate and am starting to 
>> think laterally about where the problem may be.
>> Could it be that the proxy server and/or the border firewall at my 
>> institution are blocking the communication?
> 
> 
> Yes it could. A quick test of this is to run an ordinary browser and try 
> reaching some well known web sites e.g.
>     www.uow.edu.au
>     www.usyd.edu.au
>     www.ap-accessgrid.org
>     www.accessgrid.org
> If you're asked for a password to browse beyond uow.edu.au, then it 
> looks very much like a proxy issue.
> 
> 
> A second possibility is the MTU. Are you using Linux? If so, then I've 
> recently found that changing the MTU from 1500 to 1476 cured a problem 
> that looked a bit like a proxy and/or firewall problem. In that case, 
> the browser would reach www.usyd.edu.au, but could not reach 
> www.ap-accessgrid.org (which is "nearby").
> 
> 
>> What protocol does the certificate wizard use to communicate the 
>> request to the AG developers?
> 
> 
> I believe its https (hence simple browser tests, as above, can give some 
> help in this case).
> 
> 
> chris
> 
> 
> Christoph Willing                        Ph: +61 7 3365 8350
> QPSF Access Grid Manager
> University of Queensland
> 
>