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Download the PmNetKey

PmNetKey licence server - for PROMOTIC version Pm8.2.0 - 8.3.32. It allows to provide the PROMOTIC licence to applications via networks.
The package contains the installation of PROMOTIC licence assignment and monitoring program. There is no need to use this program if the standard licencing is available for the PROMOTIC application (Hardware (USB) licence key, Licence file SWK extending the content licence carrier or Software licence key (.swk) bound to specific components of the Windows OS).
Download the file e.g. PmNetKey10700.msi and launch it on the computer that will work as PROMOTIC licence server. This installation package will install the network licence server on this computer. See: PmLicServer licence server.

PmNetKey PmNetKey licence server - for PROMOTIC version Pm8.2.0 - 8.3.32 19.10.2017 22 MB

PmNetKey allows to provide the licence to PROMOTIC applications via networks. This way, it is not needed to have licence in own HW Key for each individual PROMOTIC application. This licencing procedure can also solve problems of the PROMOTIC application running in virtualized environment, where the PROMOTIC application cannot access the physical HW Key connected to USB port. PmNetKey is protected by its own HW Key. PmNetKey is usually automatically launched on computer boot as Windows service.

In order to assure correct functionality it is necessary, that the computers with the PROMOTIC application (licence clients) have network connectivity via the HTTP or HTTPS protocol to the computer with the PmNetKey program. The communication between PROMOTIC application and the licence server happens not only when the application is launching, but also after that, periodically (the period is around 1 minute or or slightly longer). The network connection with the licence server must be functional during the whole time the PROMOTIC application is running.

The licence on the licence server are so-called "floating": The PROMOTIC applications can be launched on any PC (in the network) but the number of simultaneously running applications can not exceed the number of runtime licence present on the licence server. If, For example, there are 2 runtime licences present on the licence server, then it is possible to run 2 applications simultaneously. Additional application (third) can not be launched. If one of the running applications is stopped and thus does not communicate with the licence server for 10 minutes, then its licence is released on the licence server and available to be used by another application. Now it is possible to run the other application - it will use this released licence.

The PROMOTIC application network licence for PmNetKey are provided in the form of the licence file (see Network licence key). The licence file is functional only with the corresponding licence server, it was generated for. It will not function with another licence server.

Installation, uninstallation of the licence server and service configuration

The program has its own installation file, because it is often installed on a computer, where the PROMOTIC system is not present. The installation program can be downloaded from https://www.promotic.eu/en/promotic/download/download.htm (e.g. PmNetKey XXYYZZ.msi). The program is to be installed on the computer that is going to act as a licence server. During the installation, the program is configured as Windows service with automatic launch on system boot. The PmNetKey service can be configured, stopped and launched by using the standard Windows OS resources (services.msc service manager).
PmNetKey is protected by its own HW Key. The program is not functional without the HW Key. The HW Key must be generated especially for this purpose, normal PROMOTIC application HW Key cannot be used in such case. The HW Key must be permanently present in the USB port of the computer that is running the PmNetKey.

The program (service) can also be controlled from the command line by entering parameters. The command line window must be launched with the Administrator rights. The commands are relevant in some special cases for example in Windows OS *.bat files. Usually it is not necessary to use such commands because the Windows OS service is configured during the program installation process and it is removed when the program is uninstalled. The configuration, stopping and launching is provided by using the standard Windows OS resources. Individual commands:
PmNetKey -i - Adds the Windows OS service for the PmNetKey program. The service will be configured in order to launch automatically on system boot. It is done automatically during the program installation.
PmNetKey -u - Removes the Windows OS service of the PmNetKey program. It is done automatically during the program uninstallation.
PmNetKey -s - Launches the Windows OS service of the PmNetKey program.
PmNetKey -k - Stopps the Windows OS service of the PmNetKey program.
PmNetKey - Launches the PmNetKey program as a normal application, not as Windows service. Application icon appears in the Windows OS Sys Tray among icons on the right. This can be handy for testing purposes.

Licence server configuration

The program is configured via the PmNetKey.ini configuration file. This file is created automatically during the installation and is located in the same folder as PmNetKey.exe (usually in the folder: C:\Program Files\Promotic or C:\Program Files (x86)\Promotic).
Description of the keys in the [Config] section:
WebServer - The key allows to modify the port and protocol (HTTP or HTTPS) that will be used for listening by the internal Web server of the PmNetKey program.
If not set, then the default value http://+:81/ is used, it means that the HTTP protocol and port 81 are used.
The ";" character at the beginning of the line changes it to a comment. Such line is not taken into account.
Example of the PmNetKey.ini configuration file (HTTP protocol and port 83):
Example of the PmNetKey.ini configuration file (HTTPS protocol and standard port 443):
LogDir - This key allows change of the default foder where the Log file will be located.
If not set, then the Log file is located in the same folder as the PmNetKey.exe program. Be informed that the default installation directory may be read only.
Example of the PmNetKey.ini configuration file for placing the Log file into the "C:\Windows\Temp" folder:
LogRefresh - This key specifies whether the information regarding client licence refersh is written into the Log file. The 1 value enables writing, The 0 value disables writing. The default logging period is 1 minute for each client.
This may be useful for debugging problems with network licences but from long term point of view, periodically logging this information may overwrite other important logs from the circular log file(s).
If not set, then the logging of the licence client refresh into the Log file is disabled (the 0 value).
Example of the PmNetKey.ini configuration file that enables logging of periodical client licence refresh into the Log file:
Medium - This key allows to define the specific HW Key that is used for runtime protection of the PmNetKey licence server.
It may contain a list of HW Keys (separated by comma) that is being evalueated starting from the first entry until the first connected HW Key is found (e.g. hwkey:k1234,hwkey:k1111).
If not set, then the default value "hwkey" is used, meaning any HW Key.
If the list is not defined and while multiple HW Keys are connected to the computer then after the computer is rebooted the licence server may get paired with another HW Key.
Example of the PmNetKey.ini configuration file that defines the specific HW Key with licence number 1234 for the protection of the licence server:

Commissioning the HTTPS protocol of the licence server:

The implementation of the licence server (Web server) is provided by the Windows OS "HTTP service". The configuration of HTTPS protocol is done axactly the same way, as for the HTTPS protocol in the PmaWeb object, i.e. by the utility PmHttpConfig.exe (it is necessary to set the rights, import the certificate of the server and connect it with the corresponding Web server).

Monitoring the licence server functionality

The program allows to monitor the current status of provided network licences and also the history of network licence clients logins and logouts. The monitoring is provided via the Web interface. PmNetKey contains an internal Web server, that offers the info.html and log.html pages on it s IP address, protocol and port. For example http://localhost:81/info.html and http://localhost:81/log.html.

Behavior of the PROMOTIC application when the connection with the licence server is lost

If the periodic communication with the licence server is permanently failing, then the running PROMOTIC application goes through the following states:
1) information - first, the error message about the failed communication with the licence server is displayed in global errors. This state is reached after the first failure of the periodical communication. This state lasts around 10 minutes.
2) warning - after that, the warning window is displayed (repeatedly if the user closes it) and in the global errors the communication failure message is displayed. This state lasts around 48 hours.
3) error - finally, the situation is evaluated as fatal error, the application is stopped and licence error message is displayed in the global errors.
The states 1) and 2) are immediately terminated after first successfull periodical communication with the licence server. If the communication with the licence server fails permanently, then the application is stopped after 48 hours. The method Pm.LicenceInfo(10) for detection of time that has passed since the last successfull communication with the licence server can be used.
If the connection with the licence server is not functional, the PROMOTIC application cannot be launched. The time interval protection of the application before it is stopped, because of the licence server communication failure is applied only for application that are allready running.

Commissioning the SWK licence files on the licence server and the licence client

a) Licence server - The licence file it is necessary to copy into the "C:\Program Files\Promotic" folder or C:\Program Files (x86)\Promotic folder.
b) Licence client - In the application INI file (for runtime - PmRt), or in PROMOTIC INI file (for the development environment - PmDev and PmDevSchool) (since version Pm8.3.0) it is necessary to create the section [Licence] and in this section to create the key Medium as described below (reference to a PmNetKey and to a specific Network licence key):
where the netkey indicates the network licence, http or https specifies the protocol, followed by the IP address or computer name, internal Web server port and the licence SWK file name.

Logged-in Windows user must have the permissions for writing into following files:
- app.ini files of the PROMOTIC application bound to PmLicServer licence server
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