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I have an online portal that communicates with our 2008R2 AD server. The portal is used as a self service password changing/reset help desk. I am moving the self service portal it to another subnet and on another interface of our firewall.<br />
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The ports found here: <a href="https://technet.microsoft.com/en-us/library/dd772723(WS.10).aspx" rel="ugc">https://technet.microsoft.com/en-us/library/dd772723(WS.10).aspx</a><br />
Must all these ports be open on the firewall for the portal to communicate its password change requests with AD? Or just certain ones?
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I have an online portal that communicates with our 2008R2 AD server. The portal is used as a self service password changing/reset help desk. I am moving the self service portal it to another subnet and on another interface of our firewall.

The ports found here: https://technet.microsoft.com/en-us/library/dd772723(WS.10).aspx
Must all these ports be open on the firewall for the portal to communicate its password change requests with AD? Or just certain ones?

Active Directory Ports on firewall for password changing

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.

Active Directory

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.

Windows Server 2008

Operating system security (OS security) is the process of ensuring OS integrity, confidentiality and availability. OS security refers to specified steps or measures used to protect the OS from threats, viruses, worms, malware or remote hacker intrusions. OS security encompasses all preventive-control techniques, which safeguard any computer assets capable of being stolen, edited or deleted if OS security is compromised, including authentication, passwords and threats to systems and programs.