What is hostid? How to find hostid? How to change hostid?

When a license file is generated for a specific computer, it is locked
to a number that is unique to that machine. For some UNIX machines, the
32-bit hostid is used. For Linux, Mac, and Windows machines, as well as
other types of Unix machines, the ethernet (MAC) address is used.
Optionally, on Windows computers, the IP Address can also be used.

How to find your hostid or ethernet(MAC)address:

Platform How to get your HostID
--------------------- ---------------------------------------------------
MS Windows In a Command Prompt window, run ipconfig /all
Take the Physical Address of the first Ethernet
adapter listed. Remove the dashes (-).

Solaris hostid

HPUX echo `uname -i` 16op | dc
or HP700 Note: (`) is a back-tick, not a single quote

Linux /sbin/ifconfig eth0
Take the string to the right of HWaddr.
Remove the colons (:).

MAC OS X Open the Apple System Profiler application
in /Applications/Utilities. Look in the Network
overview of the System Profile to find your
Mac's Ethernet Address. For example, 8.0.2b.e6.87.59

You can also use the command netstat -I en0

For information on how to determine the HostID of your machine, see the
Installation guide. These manuals are also available on our website at
the following URL:


For information on how to change a host id or transfer your license from one workstation to another, see the link below:


For information about system requirements for a specific release, see the link below:



From: http://www.mathworks.com/support/solutions/data/1-171PI.html?solution=1-171PI

Reference: http://www.squirrel.com/squirrel/sun-nvram-hostid.faq.html


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