On Oct 29, 2007, at 7:30 PM, Mel Wade wrote:

> <clip>
> No, it's not possible, as all the traffic is, indeed, coming from  
> one box:
> the ltsp server itself.
> </clip>
>
> Well, It's obviously possible because Citrix found a way to do it.   
> How
> difficult it may be would be another question.  They obviously  
> found a way
> to associate each session with an IP address from a pool.  Here's a
> troubleshooting doc that may give some insight into the process:
> http://support.citrix.com/article/CTX111898&searchID=-1
>
> Mel

2 things come immediately to mind...
   Local app
   IP tunneling

Local app is obvious (my entire ENV is local app)(just because I  
can). It gives me the best of both worlds and meets my needs. YMMV in  
making this a viable solution for other sites.

IP tunneling would be a bit more unique... I would think some type of  
socket connection is assigned that would go back to the diskless. A  
quick way might be setting http_proxy_server in the user env to be  
the actual diskless client running a simple tcp redirection back to  
the real proxy. A combination of bash and perl should get the job  
done, but IP tables on the diskless might be lighter weight for those  
of you who are cpu constrained. You would need to set the IP address  
of the diskless in the xserver (can LDM set env variables for the  
user to inherit like KDM?).

A third, heavy, and very bad alternative in my opinion, would be to  
utilize some manner of virt interface that is auto-configed on user  
login. then bind all outgoing requests to that IP. Much more  
difficult and best implemented in kernel space. AKA beyond my ability.

FWIW I have been lurking here for about a year now. I have seen  
requests like this worked out and included in the actual LTSP. If I  
remember correctly LDM in C is just one example. If we make it work  
we ALL win.

Climbing off the soap box...

I have finally managed to roll out my first "commercial" LTSP ENV. I  
have migrated 15 full systems running M$ to 4 heavy LTSP running  
local apps. Estimated $ savings in software (lic and support) is  
estimated at $15K/y. Labor costs > $45k/y (avoided hiring full time  
support). Everyone wins except M$ (i was the $45K and just kept my  
current position ;-)

All that to say "thank you for LTSP 5."

Jaysen O'Dell.

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