accessing share via netbios vs fqdn

YaroC 316 Reputation points
2021-04-01T10:02:20.73+00:00

I have a weird situation where when I try accessing a share via fqdn although it doesn't explicitly say I have no access but rather gives unspecified error it doesn't work while when using netbios for the same I can access the share just fine. What's going on here? I wouldn't expect any difference in type of access. How can I get the exact cause of this issue? What's the difference when accessing shares via hostname vs fqdn.
Just for update I also noticed when the share is being accessed there is a log related showing ReadAttributes: Not Granted. This is even more puzzling as I confirmed the share permission is Read and NTFS Effective Permissions are Read/Execute. How do I get to the bottom of this?

Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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  1. MotoX80 35,591 Reputation points
    2021-04-07T19:03:34.98+00:00

    since when setting up share permissions directly on my_folder I could see in Sharing tab the unc and description saying Shared.

    I have no idea what you are doing. Are you setting up one share (shared_folder) or two (my_share) or three (my_folder)?

    Now after modifying shared_folder share permission it works

    This is what I tried to point out yesterday. You are describing things that you are doing, but not really providing any details. Forum users can only guess as to what permissions are set on any of these folders and any of the shares that you have.

    In general share permissions act as a filter to the NTFS permissions, If a user has update access to D:\Data\Shared-folder but the share permissions to \servername\Shared-folder only have read access then the user will only have read access.

    If you have D:\Data\Shared-folder\Sub-folder-1\Sub-sub-folder and wish to allow a user to access Sub-sub-folder through the share on shared-folder, then the user will need to at least have list access on Shared_folder and Sub-folder-1 in order to traverse the file system to get to Sub-sub-folder.

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  1. Sunny Qi 11,066 Reputation points Microsoft Vendor
    2021-04-02T06:04:27.703+00:00

    Hi,

    Thanks for posting in Q&A platform.

    Please try to run this command ipconfig /flushdns in a CMD window with administrator privilege and then access the shared folder via FQDN to see if the issue can be resolved.

    If the issue still existed, for further troubleshooting, please help to run the following command in a CMD window with administrator privilege and provide the results.

    ipconfig /all

    nslookup /FQDN

    nslookup /NetBios name

    Please kindly note that this is a public forum, everyone could access and view this thread, please remove private information that might leak your privacy.

    Best Regards,
    Sunny

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  2. YaroC 316 Reputation points
    2021-04-02T07:12:41.12+00:00

    I tried all the above but neither helped. Still see unspecified error and and Not Granted logs referring to the path trying to access.


  3. YaroC 316 Reputation points
    2021-04-06T13:23:34.443+00:00

    Thanks but exactly due to what's in your last sentence I can't really provide any screenshots although I can provide detailed description of the situation.


  4. Sunny Qi 11,066 Reputation points Microsoft Vendor
    2021-04-07T08:38:11.177+00:00

    Hi,

    Thanks for your feedback.

    For further troubleshooting, we need to figure out your how do we configure the DNS server on Windows client and if the DNS server can resolve hostname and FQDN successfully.

    If your issue is urgent, I would also suggest you open a case with Microsoft where more in-depth investigation can be done so that you would get a more satisfying explanation and solution to this issue.

    Also, in this way ,they can have a clear picture about your issue and your environment by phone communication and live share session.

    You may find phone number for your region accordingly from the link below:

    https://support.microsoft.com/en-us/gp/customer-service-phone-numbers

    Best Regards,
    Sunny

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