How to run citrix license server and VirtualCenter license server on same box

[JuanValdez]

This is maddening. I'm trying to use an existing citrix license server (serving a functional citrix farm so I don't want to mess with it) and add a VirtualCenter license server to the same box. VMware wants to grab the citrix port (27000) when it comes up so there is a port conflict.

I've changed the vmware license file to point to 27001 and if I specify VirtualCenter to use host_ip:27001 it is okay but the hosts don't see the license server using hostname.domain and if I try to change the hosts license server to host_ip:27001 I get the error:

"Unable to change license state as the license server is not available"

Can anyone help?

[Dave_Mishchenko · Accepted solution]

Have you modified the ESX firewall to allow outbound traffic on port 27001?

esxcfg-firewall -o 27001,tcp,out,License_Service

The text "License_Service" is optional.

[FredPeterson]

Just a curiosity sake - wonder if you can simply let the Citrix license server handle the licenses?

They both are technically running the flexlm software (hence port 27000 conflict) just a variation on it. Makes me curious about trying to hack that...

[JuanValdez]

Good question. I originally tried putting the vmware license file in the citrix license directory. The doc states that it will read any license file in the specified directory when the daemon starts. That works as far as FlexLM is concerned but the VMware client doesn't seem to work. I did not try it the other way around but am just going to go with the kludgy port workaround and opening the correct outound port on the ESX hosts as the previous poster stated.

[TomHowarth]

You would be unlikely to get the Citrix LM to take notice or serve VMware license keys as it is a very cut down version of the Product, VMware has a richer version but even that is not the fully feature rich version, now If you had a AutoCAD FlexLM server then I beleive you would be able to have a single license server instance out of the box with out any jiggery-pokery with ports etc.

Tom Howarth

VMware Communities User Moderator