I have a client who has a XenApp 6.5 system hosted out of the data centre in the UAE. Its the clients own hardware. The system consists of :
Citrix Access Gateway 2010 (physical unit)
HP DL380 G7 X 2 (one DC & Exchange + one XenApp 6.5)
The CAG failed and as it is no longer supported by Citrix or the data centre, my client is faced with replacing with a Citrix NetScaler MPX 5550 Standard Edition. This is the suggestion from the data centre.
Now, to get the system back on-line (as getting the Citrix NetScaler MPX 5550 in place is taking weeks), as a work around, I had the data centre run up a virtual server (they did so free of charge) and I installed Citrix Secure Gateway (CSG) on there. I configured the CSG to match the CAG. I have the SSL Cert reissued for the CSG so everything is the same. Same URL, same ports etc. The virtual server is sitting in the same DMZ space as the CAG and as far as I'm concerned its secure.
Now, the proposal from the data centre has come in for the implementation of the Citrix NetScaler MPX 5550 Standard Edition and the costs involved are insane. They are looking at a one off USD$1,555 and then a monthly USD$1,930. The current contract is in place for another 18 months so that's a total cost of USD$36,295. The client was not expecting that and their feeling (and i agree) is that the data centre provider is literally holding them to ransom. We are liaising with a in country supplier (client in UK) about replacing the active CAG they have in their UK office (for accessing their UK based apps - NOT connected in anyway to the XenApp system in the UAE) to see what they are looking at in terms of cost.
My question here is: Why replace the Citrix Secure Gateway with the Citrix NetScaler MPX 5550?
Since I put the workaround in place with the CSG, all users of that system (55 in total, spread globally) have reported a much smoother log in experience as well as perceived application speed.
Does my client really need to replace or can they continue to use the Citrix Secure Gateway in place of the failed CAG?