Dear All One of my application KTDMS has been configured to use LDAP and i have provided the BaseDN name Port and Password it is working for security reasons i want to stop LDAP to make a connection to KTDMS server temporarily. is there any other way to block LDAP so that Application would not authenticate users Regards and God blessings RaSa

You can use a firewall to block the ports http://geekswithblogs.net/TSCustomiser/archive/2007/05/09/112357.aspx

Hi, I have saw another post of yours at http://social.technet.microsoft.com/Forums/en-US/winserverDS/thread/12b3c841-a797-4a87-9eff-50374ea1eefb For the problem with conflicting ports, as a workaround, you can move the 3rd party application to a member server. If you must run both Active Directory and the application on the same server, you can change LDAP Port Assignments for this application. To do so, you need to contact the software vendor for assistance. Active Directory use LDAP via TCP port 389 for client communications and TCP port 636 for secure client communication ( SSL ). Please do not black port 389. You can check the following table: Application protocol Protocol Ports Global Catalog Server TCP 3269 Global Catalog Server TCP 3268 LDAP Server TCP 389 LDAP Server UDP 389 LDAP SSL TCP 636 LDAP SSL UDP 636 IPsec ISAKMP UDP 500 NAT-T UDP 4500 RPC TCP 135 RPC randomly allocated high TCP ports¹ TCP 1024 - 65535 49152 - 65535² For more information, please refer to: Service overview and network port requirements for the Windows Server system http://support.microsoft.com/kb/832017 Thanks. NinaThis posting is provided "AS IS" with no warranties, and confers no rights.

Dear Nina what i need is ,MY workstation which is making a connection to my GC and LDAP through an application level how can i stop these connections so that users can not authenticate to my AD or GC regards and Blessings RaSa

Dear the only thing i want to stop access LDAP from a computer to MY AD server RegardsRaSa

Dear ALL Thanks for all your Inputs I have succeeded with what i want i try using "IPSEC policy" created a policy to block ports and it works... Regards And Godblessings for your timeRaSa