Category: Technical Notes

  • How to handle the Apache Log4j zero-day exploit using PTV xServer on-premise

    Hansjörg Back

    As the PTV xServer API versions 1.34 and 2.x are affected by the critical vulnerability in the Apache Log4j logging framework we work on updates integrating the security update Log4j 2.15.0. We will announce the new on-premise versions here and recommend to use them as soon as they are available.…

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  • Critical vulnerability in Log4j

    Hansjörg Back

    The latest update to this post is available here!

    On Friday 09.12.21 a critical vulnerability (Log4Shell) in the widely used Java library Log4j has been identified. According to the assessment of many authorities, this leads to an extremely critical threat situation, which is why, among others, the Federal Office for Information Security (BSI) in Germany has upgraded its existing cyber security warning to warning level red (see Common Vulnerabilities and Exposures and BSI).…

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  • PTV xServer Version 2 – OS requirement update for Linux hosts

    Daniel Möwes

    We are now working on the upcoming xServer Version 2.23.
    These version is the first containing compiler updates for Windows and Linux.

    On windows Systems, there are no updated requirements, since the xServer2 compiled with VC16 is backwards compatible.…

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  • PTV xServer API version 1 – Technical Note

    Isabel Honikel

    We would like to inform you that a problem of the MS Windows Server operating system in interaction with PTV xServer API version 1 was discovered.

    Your PTV xServer installation is affected by this problem if the following points apply to it:

    • PTV xServer API version 1
    • Operating system Windows Server 2016, or Windows Server 2019 with current security patch
    • PTV xTour or PTV xDima with calls that clear the distance matrix before or after usage
    • Storage of distance matrices in a SMB / CIFS directory

    Within this group, installations using either local Windows versions (Windows Server 2019) or Azure Windows versions 5 (Windows Server 2016) and version 6 (Windows Server 2019) with current patch are affected.…

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  • Webinar – PTV xServer internet for cloud developers – last minute registration

    Isabel Honikel

    A Technical introduction into PTV xServer internet for cloud developers.

     

    Motivation:
    “Which info would have prevented me from a lot of painful experiences and do-it-again‘s?“ Registration required before July 28th, free of cost

    Agenda:
    – What do we offer from a technical perspective?    …

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  • JAVA – “wind of change” wasn’t just an early 90’s thing

    Daniel Möwes

    From the beginning of time PTV included Oracle JAVA Runtime Environment (JRE) in xServer. Oracle now changed its license policies and any updates for commercial use are only available with a paid subscription.
    This marks a severe change for PTV especially in the xServer context.…

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