Starting the License Manager

You can start the license manager manually or it can run automatically at boot.

The installer can set up the license manager to start automatically; in case it did, you can skip the following section.

starting the license manager manually

To start the license manager manually, make the license/$arch directory the current directory and enter

./lmgrd -c ../license.dat -l /var/tmp/comsol52a.log

The server is now ready to distribute licenses over the network. It writes any debug information to the log file /var/tmp/comsol52a.log.

starting the license manager automatically at boot

In order for the license manager to start automatically at boot, you need to add Bourne shell commands to the appropriate boot script. You must be a superuser (root) to edit boot scripts. In some cases, however, the COMSOL Installer automatically installs and configures the license manager.

For security reasons, it is recommended that the daemons are not started as root. Instead, use a dedicated username to start the license manager.

For Linux distributions that use systemd, use the lmcomsol.service file, located in the comsol52a/license/glnxa64 directory, to start the license manager. To use lmcomsol.service, do the following steps:

1	Update the path to lmgrd, license.dat, and comsol.log in case you have different locations for these files.

2	Optionally, replace username with an actual username. Preferably do not use root; instead, use the account used to install COMSOL or another account with access to both the lmgrd executable and the log file location above.

3	Create a /usr/tmp directory if it does not exist and set its permissions to 1777 with the chmod 1777 /usr/tmp command.

4	Copy the lmcomsol.service file to /usr/lib/systemd/system/ and run the systemctl enable lmcomsol and systemctl start lmcomsol commands to activate the license manager.

For older Linux distributions, without systemd, the procedure for editing boot scripts on each supported Linux distribution appears in the following table:

Platform	Procedure
SuSe Linux	The following instructions should work for SuSE Linux distributions: In the comsol52a/multiphysics/license/glnxa64 directory, enter the commands cp rc.lm /etc/init.d/comsol52alm chmod 755 /etc/init.d/comsol52alm Edit /etc/init.d/comsol52alm, replacing dir with the full path to the glnxa64 directory, and replace username with an actual username. Now create the following link cd /etc/init.d/rc5.d ln -s ../comsol52alm S91comsol52alm
Debian Linux	The following instructions should work for Debian Linux distributions: Copy the file comsol52a/multiphysics/license/glnxa64/lm_comsol to /etc/init.d Edit /etc/init.d/lm_comsol. Update the FP and MYUSER variables as indicated in the file. Use the utility update-rc.d to automatically update the system's init script links: update-rc.d lm_comsol start 99 2 3 4 5 . stop 1 0 1 6 . This means that the COMSOL license manager is started by runlevels 2, 3, 4, and 5, and stopped by runlevels 0, 1, and 6. Enter man update-rc.d for more information on init scripts.
Linux, General	The following instructions should work for most Linux distributions: Copy the file comsol52a/multiphysics/license/glnxa64/rc.lm and paste it at the end of /etc/rc.d/rc.local. Replace dir in the code fragment with the full path to the glnxa64 platform directory, and replace username with an actual username.