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The information on this page refers to LM-X v4.9 and newer, which added HostIDs for Google Compute Engine and Azure. If you are using an older version of LM-X, refer to documentation for earlier versions. 

The following table lists all HostID types that are supported by LM-X License Manager and indicates the level of security and flexibility of each type to help you decide which HostID type(s) work best for your needs. We recommend using a HostID that the end user will not change often during the valid period of the license.

Note: The values you enter as HostID(s) are case-insensitive (for example, "User" and "USER" are interpreted as the same entries).

HostID TypeSecurityFlexibilityNotes
HostnameLowHighEasy to move.
UsernameLowHighEasy to move.
IP addressLowHighEasy to move. This HostID is a good choice if the IP address is static and available.
Windows product IDLowHighEasy to move.
Harddisk
HighLowDifficult to move. For optimal security, locking to the BIOS and/or Harddisk HostID is more resistant to abuse; however, these HostIDs can be acquired only on Windows platforms.
BIOS
HighLowDifficult to move. For optimal security, locking to the BIOS and/or Harddisk HostID is more resistant to abuse; however, these HostIDs can be acquired only on Windows platforms.
Long (Unix-specific locking)HighLow

Difficult to move.

Note: Mac OS X machines which have undergone extensive hardware modifications, for example had their internal hardware components replaced, may irreversibly lose their serial number (Long HostID). This can cause LM-X to fail to check out the license. Therefore, users without a well-defined serial number or those users who lost their serial number are recommended to choose a HostID type other than Long HostID for their licensing purposes.

Ethernet card
(MAC address of the Ethernet card)
MediumLow

Difficult to move; however, it is possible to change the MAC address, which somewhat compromises security.  

Generally a good choice for locking either a node-locked license or a floating license, because almost all machines have an Ethernet card, and information about the Ethernet HostID is available on all platforms.

Hasp HL dongle
HighHighDongles have superior security and flexibility; however, because the dongle is a physical device, it has the risk of being lost or broken.
CustomHighHighLets you develop your own algorithm to lock the application to custom hardware.
AWS Instance ID
HighHighMay be somewhat time-consuming.
Google Compute Engine
HighHighMay be somewhat time-consuming.
Azure
HighHighMay be somewhat time-consuming.

Note: For the highest level of security, we recommend that you use as many HostID types as possible. We also recommend using HostID matching to define custom configuration settings more accurately.

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