If you have license files from different vendors that use the same FlexLM license server, you can combine these files. You must read all of the compatible license files into one file, then edit out the duplicate SERVER lines until only one remains. Each vendor daemon needs its own VENDOR line. Write this combined data to the license.dat file.
If this file is written to the default location, you will not need to set the ESRI_LICENSE_FILE or LM_LICENSE_FILE environment variable. If written elsewhere, or if you were not able to combine all of your license files, then you will need to set either of these variables (or use whichever method your application requires to find the license.dat file).
Refer to the Environment Variables section before attempting this.
If you run ArcGIS, ArcSDE, and other optional ArcGIS extensions on multiple nodes, you must make your license.dat file available on all the machines. You can do this either of two ways:
Place the license.dat file in a partition that is available via NFSŪ to all nodes on the network that need the file.
Copy the license.dat file to all of the necessary sysgen directories.
Since the ESRI daemon keeps track of license usage, and since the license.dat file contains encrypted data to protect it against modification, you can copy and move the license file as much as you want.
If you are running redundant servers, you should have one copy of the license.dat file (as well as copies of the lmgrd, the ESRI daemon, and other application daemons) on each server node.
When you combine license files for two different FLEXlm licensed software programs from different vendors, these programs might not use the same version of FLEXlm. FLEXlm can handle this situation.
Remember:
A newer lmgrd can be used with an older application daemon, but a newer application daemon might not work with an older lmgrd.
Therefore: Always use the newest version of lmgrd and the newest version of each application daemon.
If you have FLEXlm v7.0d or higher, use it. Otherwise, use the newest version of the utility (such as lmutil); it can be downloaded from www.globetrotter.com.