How to obtain your license server's HostID information

The HostID of the computer that will be running the Ansys license manager is required to activate your Ansys Optics entitlement or generate the license file to be used on the computer running the Ansys Lumerical licenses. 

Important

The HostID information can be one of the following: 

1. Disk Serial Number of the disk drive on the server 
2. MAC (ethernet) Address of the network interface card on the server

Only one of the above HostIDs is used to run the Ansys License Manager on the server. If running more than 1 license file, please make sure that the new license file has the same HostID as the existing license file.

SERVER hostname HostID 1055

Requisites

• Ansys License Manager 2021 R1 or newer
• Administration or root access required for installation

License manager utility (lmutil)

This process uses the license manager utility to obtain the machine's HostID information. This process obtains the MAC address and the Hostname of the machine. 

• Install the Ansys license manager on a supported platform.
• Open a command prompt in Windows or Terminal in Linux.
• Run the FlexNet utility,  "lmutil" to obtain the "Hostname" and "MAC address" of the machine running the Ansys license manager. 
• If several MAC addresses (from the '-ether' argument) were found, use the first MAC address from the list. 

Notes: Guidelines on this page are for supported Windows and Linux distributions using the default installation path.  

Windows: 

"C:\Program Files\ANSYS Inc\Shared Files\licensing\winx64\lmutil.exe" lmhostid -hostname
"C:\Program Files\ANSYS Inc\Shared Files\licensing\winx64\lmutil.exe" lmhostid -ether

Linux:

• Run the command to obtain the HostID information of the machine.

/ansys_inc/shared_files/licensing/linx64/lmutil lmhostid -hostname
/ansys_inc/shared_files/licensing/linx64/lmutil lmhostid -ether

• If you run into the error "missing file or file not found...", it is missing the "redhat-lsb" or "lsb" package. Install the package using your package manager. The installation process shown requires root/sudo access on the machine. See this KB for more information on the required packages for the Ansys license manager.
  • RHEL/Rocky Linux

    sudo yum install -y lsb

  • Ubuntu

    sudo apt install -y lsb 

  • SLES

    sudo zypper install -y lsb

Ansys license management center

See this page for details on obtaining the machine's HostID information using the Ansys license management center.