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Dynamics 365 Community / Forums / Supply chain | Supply Chain Management, Commerce / Unable to access FTP a...
Supply chain | Supply Chain Management, Commerce
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Unable to access FTP after security updates

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Posted on by babalalex 411

Hi Folks,

We have got into major issue in Production. Till 15-Aug-2020, Saturday our PRODUCTION was working very fine.

Existing Scenario - We were storing text files on FTP server, it was very smooth. We used to save almost 40-50 files on the FTP server in 1 go. 

On FTP server, we are storing many text files from different functionality. Everything was working good.

On Sunday, we had scheduled Microsoft security update, about which we received an email intimation on Tuesday.

After this security update, Our production system was not able to store all the text files on FTP server. Instead of 40-50 files, we are able to store only 10/20 files.

Because of this, our all the functionality which was based on FTP files are on toss now.

Same issue has occurred in UAT box also; After MS Security enhancement  updates it is not working as it was working before.

 

I am really not able to understand what went wrong from Saturday to Monday except MS security enhancement update.

Conclusion - Some of the files are printing and some are not able to print after MS security update.

Sharing with you the exact error.

pastedimage1597725977235v1.png

I am really looking forward to community as no one is able to guide much in this scenario including MS.

It would be great if you can throw some light on it.

Thanks.

  • babalalex Profile Picture
    babalalex 411 on at
    RE: Unable to access FTP after security updates

    Thanks Vinit for prompt reply.

    I shall be exploring the options mentioned by you.

  • Suggested answer
    vinitgoyal2005 Profile Picture
    vinitgoyal2005 6,330 on at
    RE: Unable to access FTP after security updates

    Hi,

    Instead of FTP, you can use Azure storage /SharePoint to store the data. For all the file handling/ data transfer, you can use Power automate/Logic apps. Check the example here: msdynamicsworld.com/.../how-use-power-automate-extract-data-microsoft-dynamics-365-finance-and-operations-data

    Use your favorite search engine and you will get a lot of examples for Power automate and logic apps on the internet.

  • Suggested answer
    babalalex Profile Picture
    babalalex 411 on at
    RE: Unable to access FTP after security updates

    Hi everyone,

    My problem got resolved.

    MS had applied security updates to PRODUCTION, and in that update they were somehow blocking FTP access.

    So we have reverted the security update on PROD, it started working well again.

    But MS has suggested us some solutions for this FTP access issue which are following :

    1. Add retries. (This should be viewed as a short to medium term option.  The updated infrastructure design allows control and data calls to occasionally have matching IP.  This design is subject to change.)
    2. Disabling the FTP requirement for control and data being from the same IP.  (Please evaluate the security implications for your situation in this case.)
    3. Remove the use of FTP.  (For example, use powerapps to pull the files in and make api calls into F&O to import the files using the Data Integration framework.)

    3rd option about powerapps, I have no clue about this. If anyone can throw some light on it, it would be great.

    Also, if you have any other better option in lieu of FTP, please do suggest.

    Thanks.

  • babalalex Profile Picture
    babalalex 411 on at
    RE: Unable to access FTP after security updates

    We are still not able to reach the solution.

    And PROD is still having the same issue after security updates.

  • babalalex Profile Picture
    babalalex 411 on at
    RE: Unable to access FTP after security updates

    Hi Martin,

    Thanks for the prompt response.

    We have raised a ticket with the MS.

    But I am not able to find anything related to Security updates in History Log of the PROD environment.

    Yes, I am trying to reproduce the same scenario in DEV box.

  • Martin Dráb Profile Picture
    Martin Dráb 230,235 Most Valuable Professional on at
    RE: Unable to access FTP after security updates

    You need to collect more information. I would do the following:

    1. Log a support request.
    2. Find out what updates were installed. Search for known issues with these updates.
    3. Review logs on LCS.
    4. Review the code. Knowing what libraries you're using will help you when checking if others have the same problem and how they solved it.
    5. Try to reproduce the problem on a DEV system and debug the code.

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