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In some emulator products it is possible to configure the number of retries and the waiting time between them by adding parameters to the emulator configuration file. Please refer to the product documentation for the details regarding the relevant parameters: license_retry_period and license_retry_count parameters (obsolete starting with version 1.10)

2. At regular intervals during the runtime of the emulator (the default license check period of 1 hour can be changed by Stromasys using the appropriate license parameters):

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The license check for Charon-PAR will pass if the version on the license is higher than the one of the running Charon instance, as long as the major version (e.g., the 2 in 2.00) is the same. Please note that license are not compatible between product versions 1.x, 2.x, and 3.x.

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License Type Overview

Depending on customer requirements, Stromasys can provide several different license types.

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A software license does not require any special hardware but it still requires installation of the Sentinel runtime environment. 

Please note:

• To avoid unexpected problems, do not use any Sentinel runtime software that was not provided by Stromasys without being advised to do so by your Stromasys representative.
• Software licenses are best suited for stable environments, because their correct function depends on certain characteristics of the host system. Changing any of these characteristics will invalidate the license.
  • If the Charon host runs on real hardware, software licenses are by default tightly bound to the hardware for which they were issued. If major hardware characteristics of the system are changed, the license will be disabled.
  • If the Charon host runs in a virtual environment (e.g., VMware), software licenses are normally bound to the virtual machine ID and a set of additional characteristics of the virtual machine. If any of these parameters are changed, the license will be disabled.
• Software licenses are very sensitive to even small changes on the host system. Therefore, it is especially important to provide for a backup license that will ensure continued operation should there be a problem with the software license. See Handling Multiple License Keys and Product Licenses for details.

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If you need to install a standalone license server, please refer to the installation section of the Licensing Handbook.

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Overview of Initial License Installation Steps

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The menu options Products, Features and Sessions on the left-hand side provide the same information as the buttons. However, they show the information for all licenses.

Viewing a License with hasp_srm_view

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• • To allow access from remote clients, activate the check-box next to the field Allow Access from Remote Clients and press Submit at the bottom of the page.
    Please note: to allow access from remote clients, network visibility on the "Network" tab must be set to All Network Adapters.
  • To refuse access from remote clients, clear the check-box next to the field Allow Access from Remote Clients and press Submit at the bottom of the page.
  • Access Restrictions allow refining access rules, e.g., by specifying IP addresses. Please refer to Sentinel ACC help for details.

Allowing Access to a License Server on the Client

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Alternatively, you can use the Sentinel ACC to apply V2C files (use the section Update/Attach). Refer to the license handbook for more details.

Virtual Environment (VE) Licensing

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1. Use ssh to log in on the license server instance.
   # ssh -i ~/.ssh/<mykey> <user>@<license-server-ip>
   where

   1. <mykey> is the private key of the key-pair you associated with your cloud instance
      (for an on-premises VMware installation where login with username/password is allowed, it is not needed)

   2. <user> is the user for interactive login associated with your license server instance (e.g., opc on OCI, centos for a CentOS instance on AWS, or the custom user on your VMware virtual machine or physical server; for an instance installed from a prepackaged Charon VE marketplace image, use sshuser)

   3. <license-server-ip> is the ip address of your license server system

2. Become the privileged user and run the c2v program.

   1. Become the root user: # sudo -i

   2. Run the c2v program: # /opt/license-server/c2v --filename <my-file>.c2v --platform <my-platform>
      where

      1. <my-file>.c2v is the path and name under which you want to store the fingerprint. The file type is C2V (customer-to-vendor)

      2. <my-platform> indicates the platform on which the license server runs (possible values: physical, aws, oci, gcp, azure, ibm, nutanix, or esxi).

3. Copy the resulting C2V file to your local system (unless you can send email from the license server system).

Installing a VE V2C File

The license data is installed on the license server using the v2c utility.

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1. Generate the C2V file for the existing license. This Customer-to-Vendor (C2V) file contains the license characteristics necessary for creating the license update.
2. Send the C2V file to Stromasys. Stromasys will use the data to create the necessary license update. You will receive a V2C file (the Vendor-to-Customer file).
3. Apply the license data from the V2C file(s) on the license server. This will install and activate the update for your license.

License Troubleshooting

The most important tool for identifying a license problem are the log files of the Charon emulator, the VE license server, and the Linux system. Always check them first in case of a problem.

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• HASP licenses: the aksusbd service must run. You can check the status with
  # systemctl status aksusbd

• VE licenses: the licensed service must run on the license server. You can check the status with
  # systemctl status license_server

Further Information

Sentinel HASP licenses:

Should there be a failure when trying to display or load the license key, review the error codes listed on the Stromasys website and the associated solutions.

VE Licenses:

Refer to the VE license server guide.

If the problem cannot be solved, please contact your VAR or the Stromasys Customer Support Center (maintenance contract required) using the details in the section Obtaining Technical Assistance.

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