FlexLM is a License Server that runs on a dedicated machine. If your license is Networked, then permitted users can access a license from this license server over the network.
This is the control file. It is placed in the LDRA installation directory on the client (user) machines. Commonly referred to as the CTL File.
This is the FlexLM license file. It is placed in the directory containing the FlexLM server utilities. For Networked licenses, this is only installed on the server.
This is a combined license file containing both the above files. It is only used for standalone licenses. Double-clicking this license, or drag/dropping the license onto the License Configuration Dialog will automatically place the license.dat and CTL File in the appropriate directories and start the server.
The CTL file is named differently dependent on the LDRA product, for example, for the mtool suite the CTL file is named Toolsuite.ctl for LDRAcover the CTL file is named LDRAcover.ctl. These troubleshooting tips refers to the CTL file as toolsuite.ctl. Use the CTL file appropriate for the LDRA product you are using.
Flexlm License Servers can issue licenses for versions before the version stated in the license file. If you are still using older versions of LDRA, an update to the latest version will
not prevent you from using these versions.
LDRA installations and CTL files are version-specific, so to use an older version, you will need to have that version installed and use a CTL that matches that version.
If your license is for v10.4.0 and you have a user using v10.4.0 and another using v10.1.0. Both users can obtain a license from a license server running a 10.4.0 license, as long as they have licensed the client machine with a CTL file matching the locally installed version. Both users will consume 1 license count each.
Users of earlier versions will see no effect of the License Server update and can continue as normal. Users upgrading to the latest version should install the latest version and use the latest CTL file.
Supported versions include Windows 7/8/10/11 and Windows Server 2008/2012/2016/2019/2022
Supported versions include Ubuntu and RHEL
For LDRA versions v9.9.0+ and v10.1.0+ and later versions, 11.19.2.0 or later of the FlexLM utilities are required.
If your license server uses an older version of FlexLM, it will need to be updated before you can access a license for the latest versions of LDRA. You can download the latest FlexLM utilities from: http://www.ldraftp.com/licensing/Download.htm
Flexera removed support for Windows XP and Server 2003. Therefore, these latest Versions of the FlexLM utilities will not function on these operating systems.
It is recommended that if your chosen license server is Windows XP or Server 2003, and you need to use the latest version of LDRA that you change your license server machine to a supported OS.
The latest releases of the LDRA tools incorporates an updated version of FlexNet Publisher and as such, require users to update the FlexNet Publisher utilities used to host and serve licenses. FlexNet Publisher has changed the criteria it uses to determine a valid hostid (for securityreasons) and therefore you may encounter an “invalid hostid” error, even after receiving a license from LDRA. If you encounter such an error, contact technical support,providing your log file and a newly generated .info file.