October 14, 2015 | Reliance SCADA
Beginning with version 4.6.1, the Web client's program files are signed with a digital certificate from a trusted certificate authority (Thawte) – see the article published in 2013. As of October 22, 2015, the certificate becomes invalid and
a problem with running the Web client may occur at the end user site. The problem may appear in projects running in version 4.6.1 or later up to 4.7.2 Pre-release, Rev. 26420. This article describes three ways of solving or avoiding the problem:
This is the preferred solution. Reliance 4.7.2 Pre-release, Rev. 26506 or later already contains the program files of Reliance Web Client, which are signed with a new certificate. Besides, a timestamp from the certificate authority's server is added to the signature. This guarantees the validity of the signature even after the certificate expires. As a result, this situation will never be repeated. Reliance 4.7.2 Pre-release can be downloaded from the Reliance website's Members Section.
Warning: Once you upgrade to Reliance 4.7.2, you must reexport your project for remote users.
If for any reason you are unable to change over to version 4.7.2, use the tool designed to replace the program files of the Web client in a Reliance project. This tool will prompt the user to specify the path to the visualization project, identify the version of Reliance, and, subsequently, replace all exported files of the Web client with newly signed ones. Currently, you can fix projects that have been exported using the following official versions:
The tool for replacing the Web client's program files is free to download by clicking the following button.
Warning: The tool can only be used to fix the visualization project, not the installed Reliance system. This means that the project must always be fixed after it is exported for remote users. This solution is particularly suitable for applications running at the end user site (i.e., in situations when there is no need to change and, therefore, export the project for remote users). This solution has an advantage over solution 3 in that it is applied on the server side (it will automatically take effect on all computers running the Web client).
By customizing the settings through the Java Control Panel, you can manage to run the Web client as it is now. To do so, add the address of the server to the Exception Site List and disable checking certificate revocation. Follow these instructions:
We recommend that you use solution 1 or 2.