What ports need to be open for Active Directory?

Active Directory

Client Ports Server Port Protocol
1024-65535/TCP 1723/TCP PPTP

What ports need to be open for domain controller?

3 Answers

  • UDP and TCP Port 135 for domain controllers-to-domain controller and client to domain controller operations.
  • UDP Port 389 for LDAP to handle normal queries from client computers to the domain controllers.
  • TCP and UDP Port 464 for Kerberos Password Change.

What is RODC Why do we configure RODC?

The RODC is designed specifically to address the branch office scenario. An RODC is a domain controller, typically placed in the branch office, that maintains a copy of all objects in the domain and all attributes except secrets such as password-related properties.

What is difference between DC and RODC?

RODC & writable DC differences: Active Directory Database – DCs host the only writable copies of the Active Directory database and therefore can perform read and write operations against the directory database. RODCs host read-only copies of the AD database which do not include security principal secrets (passwords).

What port is 636?

Service Name and Transport Protocol Port Number Registry

Service Name Port Number Description
ldap 389 Lightweight Directory Access Protocol
ldaps 636 ldap protocol over TLS/SSL (was sldap)
ldaps 636 ldap protocol over TLS/SSL (was sldap)
www-ldap-gw 1760 www-ldap-gw

How do I open port 389 on a domain controller?

How to configure firewall rule for UDP 389

  1. Click Start, type ‘wf.msc’
  2. Right click ‘Inbound Rules’, select ‘Add Rule’
  3. Select ‘Port’ and click Next.
  4. Select UDP, and input 389 into the ‘Specific local ports’ field.
  5. Select ‘Block the connection’ and click Next twice.

Is port 636 TCP or UDP?

Service Name and Transport Protocol Port Number Registry

Service Name Port Number Transport Protocol
ldap 389 udp
ldaps 636 tcp
ldaps 636 udp
www-ldap-gw 1760 tcp

How do you deploy a RODC?

Deploy a Read-Only Domain Controller in Windows Server 2016

  1. Verify the tasks listed in the window and then click Next.
  2. Choose Role-based or feature-based installation and click Next.
  3. Choose desired destination server from servers pool and click Next.
  4. Choose active directory domain services from server roles.
  5. Click Next.

How do you set up a RODC?

Click on the “Promote this server to a Domain Controller” link. In the Active Directory Domain Services Configuration Wizard, select Add a domain controller to an existing domain. In the next step, check the Read-only domain controller (RODC) box and provide a password for Directory Service Restore Mode (DSRM).

How can you tell DC from RODC?

In ‘Active Directory Users And Computers’ browse to the RODC’s computer object the DC Type should contain say ReadOnly if it is a RODC. The computer object properties on tab ‘Managed by’ should also show what type of DC it is.

Why RODC is required?

The main reason to introduce RODCs is to allow a Domain Controller to exist in a remote office that may have few users or less physical security as well network security requirements while not sacrificing performance for the remote location.