Here is a an NRPE script which will monitor your Citrix Licence server. The script is based on article CTX112594 which is quite old now (Oct. 2007).
If someone have a newer reference file, please post a comment and I’ll try to update my script.
I use “lmstat -a” command and then parse the result. Normaly, this command should work on your server. When you try it on your server and if you receive an error please check this post: