RE: To disable SMB packet and secure channel signing enforcement on Windows Server 2003-based domain controllers

From: Murad Talukdar (talukdar_m_at_subway.com)
Date: 05/05/05

  • Next message: Soluk, Kirk: "RE: To disable SMB packet and secure channel signing enforcement on Windows Server 2003-based domain controllers" 
    Date: Thu, 05 May 2005 13:25:45 +1000
To: '?????? ??????' <morsin@eastbridge.tula.ru>

    Excellent. This is now working according to Laura's/????? ????? settings.
    Thanks to everyone. I've learnt a lot from this single issue.
    One last question, with the whenever possible option. According to ?????
    ?????, the DCs will now communicate insecurely with my printer, but does
    this mean it would communicate insecurely with some 'unknown' machine too.
    What I'm trying to work out, I guess, is how does it 'decide' when it should
    communicate insecurely--what test does it carry out? Is it treating the
    scanner as a member server or a client?
    As the whole worry here is MITM's --are there ones which could be utilized
    now that I have set the network server to digitally sign always but the
    clients and the members to do it whenever possible?
    I'm thinking the risk is greatly reduced but is it removed 'completely'?

    Murad
    -----Original Message-----
    From: ?????? ?????? [mailto:morsin@eastbridge.tula.ru]
    Sent: Wednesday, May 04, 2005 10:52 PM
    To: Murad Talukdar
    Subject: Re: To disable SMB packet and secure channel signing enforcement on
    Windows Server 2003-based domain controllers

    ----- Original Message -----
    > 1. From Administrative Tools open Domain Controller Security Policy 2.
    > Smile
    > 3. Select \Security Settings\Local Policies\Security Options folder. 4. In
    > the details pane, double-click Microsoft network server: Digitally sign
    > communications (always), and then click Disabled to prevent SMB packet
    > signing from being required. 5. Click OK. 6. In the details pane,
    > double-click Domain member: Digitally encrypt or sign secure channel data
    > (always), and then click Disabled to prevent secure channel signing from
    > being required. 7. Click OK.

    1. Return back to "Enabled" secure channel ecnryption requirement. SMB file
    sharing has nothing to do woth it. Secure Channel is used by domain member
    computers to pass user authentication information to DCs.
    2. There are companion settings "Digitally sign communications (always)" and

    "Digitally sign communications (when possible)" for both servers and
    workstations. Set first to "Disabled" and second to "Enabled" and your DCs
    will communicate securely with users and insecurely with your printer.

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  • Next message: Soluk, Kirk: "RE: To disable SMB packet and secure channel signing enforcement on Windows Server 2003-based domain controllers"

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