Firewall problem in domain environment

I have built two domains for testing purposes. Having deployed domain controllers, exchange servers, sccm/scom servers, sql servers along with some client computers I noticed that I had problems accessing some of servers/clients - I could not manage
some of them directly with manage command from domain controller or access them via unc path. Some of them I could not ping neither. I was able to solve these problems by changing inbound firewall rules on these machines thus
allowing some connections such as smb-in, dcom-in . . . In my production environment (I have been working there as system engineer for almost seven years) I have never had these problems - any domain member, whether it has been server or client, was easily
accessible (managed from dc, unc, ping, . . .). I could deploy GPO with all necessary settings for inbound rules but it should be done automatically - as soon as machine is joined to the domain it must be accessible by using at least common protocols such as
dcom, smb for managing or simple file copy operation. I checked my production environment again and there were no GPOs for altering default firewall settings on domain member computers so I have no idea why this is happening in my testing domains.

No one but me has access to these machines. Also Symantec Endpoint Protection software is installed on these machines as it is the case with my production machines where everything is functioning flawlessly - as I mentioned I can access all my machines
in production domain via computer management, smb, ping . . . One of my test domains has FFL/DFL Windows Server 2008 R2,  the same as my production domain, the other one has FFL/DFL Windows Server 2012 R2 and it is created for learning purposes. As I
said, in both test domains, all domain computers have SEP installed - the same version and configuration as on my production machines. I have not done anything related to firewall in my test domains on problematic machines - I installed OS on them, joined
to the domain, installed SEP and afterwards I have worked with specific product machine was created for - SCCM/SCOM, Exchange, SQL . . . servers and their clients.

Similar Messages

  • We have created shared folder on multiple client machine in domain environment on different 2 OS like-XP,Vista, etc. from some day's When we facing problem when we are access from host name that shared folder is accessible but same time same computer when

    Hello All,
    we have created shared folder on multiple client machine in domain environment on different 2 OS like-XP,Vista, etc.
    from some day's When we facing problem when we are access from host name that shared folder is accessible but same time same computer when we are trying to access the share folder with IP it asking for credentials i have type again and again
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    Hi,
    According to your description, my understanding is that the same shared folder can be accessed by name, but can’t be accessed be IP address and asks for credentials.
    Please try to enable the option below on the device which has shared folder:
    Besides, check the Advanced Shring settings of shared folder and confrim that if there is any limitation settings.
    Best Regards,
    Eve Wang
    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected]

  • Implementing Sites for a new Single Domain Environment and effects on Exchange

    Copied from the Active Directory forums as the suggestion of replies.
    I didn't find exactly what I was looking for so decided to create my own question to get some direct feedback.
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    Exchange will be an issue only if your Exchange servers span sites when your new Windows sites are created.  If you have Exchange servers all in a single location, adding sites to your Windows forest will cause no issues.  However, if you have
    Exchange servers in both locations, as soon as a new site is defined for an Exchange server in a separate location from your other Exchange servers, you will start having issues.  Let me give some examples so you can see what problems might occur:
    Two datacenters, one Windows site, Exchange mailbox servers in both locations (primary and DR), but hub and CAS roles only in the primary datacenter:
    In this situation, as soon as your second site is defined, the server in the DR datacenter will no longer be receiving mail - there is no hub to deliver it - and users will no longer be able to access their mailboxes - there is no CAS to support them. 
    Solution:  Add hub and CAS to second datacenter and all is well with the world.
     Two datacenters, one Windows site, Exchange multirole servers in both locations (primary and DR), but CAS Array defined:
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  • FWM 01009 (null):firewall problem?

    Hi Guys,
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    As an extra test we have installed a complet Edge version on the Webserver as well. Communication on the webserver is OK, but as soon as we try to connect to the server behind the firewall, it goes wrong and the error appears.
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    If all ports are open on the firewall, communication shouldn't be a problem, isn't it?
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    They say that all ports are open and that it's not a firewall problem...  However when I communicate within my LAN environment this is not a problem...
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    Edited by: Jornvdd on Sep 29, 2010 12:08 PM

  • Firewall for WLE Domain/LLE

    IHAC who requires linking geographically dispersed WLE applications to a
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    Here is a link for reference of configuring this group policy.
    How to Enable ICMP (PING) through the Windows Firewall with Advanced Security using Group Policy
    http://www.hammer-software.com/icmpgphowto.shtml
    NOTE: This response contains a reference to a third party World Wide Web site. Microsoft is providing this information as a convenience to you. Microsoft does not control these sites and has not tested any software or information found on these sites.
    Best regards
    Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

  • Add firewall rule with custom environment variable in program path

    Hi,
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    Hi,
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    Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

  • Is Lightroom supported in a Active Directory domain environment with multiple users logging into a machine?

    We are a school district using an Active Directory environment.  We currently use other Adobe products with multiple users on different machines and it works fine.  If Lightroom does work in a domain environment what are the required local user permissions needed for it tor work properly?  Thanks!

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  • I have just installed Lion OS and Face Time encounters server problems on sign up. I have sought the firewall problem without success and even temporarily turned off firewall with no success.

    I have just installed Lion OS and Face Time encounters server problems on sign up. I have sought to rectify the firewall problem without success and even temporarily turned off firewall with no success. Any ideas?

    Some folks have discovered that changing their DNS service fixes FaceTime connection issues.
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  • AD RMS for multi tenant domain environment

    Hi,
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  • Activating Windows 7 by using KMS Without the Active Directory Domain environment

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    Thanks
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  • Home Sharing- alleged firewall problem (-3259)

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    Here's the problem: when I try to share content from library to library, it doesn't happen. Specifically, I can initialise a connection between both computers so the other computer's library shows up in the sidebar in iTunes, but that's as far as it gets. When I click on said library, there's a 2 minute wait before the following message is displayed.
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  • Strange problem with Domain Values

    Dear All,
      I encounter one strange problem with Domain Fixed Values.
    Background:
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    Hello Max,
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  • Finally a solution to all your firewall problems

    I finally have answer to all of you who are seeking this
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    port 80 and then it automatically attempts to tunnel through by
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    changing my post back to orginal ...........open port 433 and
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    I finally have answer to all of you who are seeking this
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    When the Flash Player encounters the connect() method, it
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    port 80 and then it automatically attempts to tunnel through by
    sending rtmp data over http also called RTMPT it turns out the
    automatic sequence of attempts is fine for many situations however
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    NetConnection can't) because their firewall blocks data from
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    website surely they can use port 80 .And even if their setup blocks
    rtmp surely they can use RTMPT over port 80 because its really just
    plain http ...you might think the final attempt by flash player
    RTMPT on port 80 to be failsafe however the problem is that if you
    are running your webserver on the same machine as FMS then they
    can't both use port 80 at the same time....a perfectly legitimate
    solution is to use to computers one for the webserver and one for
    FMS ......two computers probably means you need to specify the
    domain in your rtmp (rtmp://mydomain.com/video).
    To force the flash player to try to connect through a
    specific port other than the defaults as specified above.....write
    rtmp as ....my_nc.connect("rtmp::8500/mydomain.com/video);
    FlashMX2004 by Phillip Kerman

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