Proxying cas-application in a cluster

[Mikkel Refsgaard Bech]

> Yes, others do deal with the issue you are describing. In our 
> case, our portal (uPortal) is in a cluster (4 machines) and 
> required delivery of the PGT back to the specific server that 
> originated the CAS call.
> 
> We accomplished this by defining 4 PGT callback URIs. For example:
> 
> https://my.university.edu/portal/host1
> https://my.university.edu/portal/host2
> https://my.university.edu/portal/host3
> https://my.university.edu/portal/host4
> 
> The host information in the URI was then used to route the 
> PGT callback request to the correct server in the cluster.

This is simple and works great, thanks.

Mikkel