MathWorks Installation Help

Inside the Network License File
The network license file is a specially formatted ASCII text file that contains encrypted product
passcodes for each product you are licensed to run. Each product passcode identifies the number of
keys available for that product. The network license manager grants or denies access to a product
depending on the availability of the license keys associated with each product.
• Each INCREMENT line identifies a product, the number of keys available for the product, and other
information. (The INCREMENT lines in your license file might not include every element shown in
the example.)
• The backslash (\) character indicates that the line continues onto the next line.
• The lines that begin with a pound sign (#) are comments. The MathWorks installer uses the
information in these comment lines such as license server host ID or Internet address when it
processes the license file during installation.
# BEGIN-------cut here-------CUT HERE-------BEGIN
# MATLAB license passcode file.
# LicenseNo: 12345 HostID: INTERNET=144.212.101.43
INCREMENT TMW_Archive MLM 18 01-sep-2015 0 \
BC9DE773A77D15AF8 VENDOR_STRING=83 HOSTID=DEMO SN=12345
INCREMENT MATLAB MLM 18 01-sep-2015 1 \
4C9D3348561BE9E3B USER_BASED DUP_GROUP=U SN=12345
INCREMENT SIMULINK MLM 18 01-sep-2015 1 \
1CD148466EF58DF8B USER_BASED DUP_GROUP=U SN=12345
INCREMENT Signal_Toolbox MLM 18 01-sep-2015 1 \
6CF74B458BA143DC3 USER_BASED DUP_GROUP=U SN=12345
# END---------cut here-------CUT HERE-------END
License Processing During MATLAB Installation
When you install MATLAB software, the installer processes the network license file:
On the server, the installer:
2
Install Products on a Network License
2-6

---

• Makes a copy of the network license file named license.dat, and puts this copy in the /etc
folder of the MATLAB installation folder.
• Adds a SERVER line and a DAEMON line to the file. The SERVER line identifies the server host and
port number. The DAEMON line identifies the name of the network license manager daemon.
• Stores the processed license file in matlabroot/etc, where matlabroot is the MATLAB
installation folder.
• When it creates an options file during installation, it also adds the Options= syntax to the
DAEMON line in your license file. This syntax specifies the path name of the options file.
For example, if your server is named thunderball and its IP address is 144.212.111.103, the
SERVER and DAEMON lines in your license file would look like this:
SERVER thunderball INTERNET=144.212.111.103 27000
DAEMON MLM "C:\Program Files\MATLAB\R2021a\etc\win64\MLM.exe" \
options="C:\Program Files\MATLAB\R2021a\etc\mlm.opt"
On the client computer, the installer:
• Creates a copy of the license file you specify named network.lic, and puts the file in the
\licenses folder in the MATLAB client installation folder.
• Deletes all the INCREMENT lines and the DAEMON line in the license file, leaving the SERVER line. It
also adds the statement USE_SERVER to the file. This line points the client to the network license
file on the server, which contains all the passcodes for the products.