What ports need to be open on domain controller?
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What ports need to be open on 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 ports are required for Active Directory authentication?
2.2. 3.3 Network Requirements for Active Directory Authentication
- Port 53 for DNS lookups on Active Directory.
- Ports 88 and 464 for Kerberos authentication to a KDC.
- TCP port 389 for the secure LDAP connection to a domain controller.
- TCP port 3268 for the secure LDAP connection to a global catalog server.
How do I allow a domain through firewall?
Whitelisting with the Windows Firewall To manage the whitelist in the Windows Firewall, click Start, type firewall and click Windows Firewall. Click Allow a program or feature through Windows Firewall (or, if you’re using Windows 10, click Allow an app or feature through Windows Firewall).
What are the different ports used by Active Directory?
Active Directory (local security authority)
| Application protocol | Protocol | Ports |
|---|---|---|
| NAT-T | UDP | 4500 |
| RPC | TCP | 135 |
| RPC randomly allocated high TCP ports¹ | TCP | 1024 – 5000 49152 – 65535² |
| SMB | TCP | 445 |
What ports on the firewall should be open between domain controllers and member servers?
TCP Port 139 and UDP 138 for File Replication Service between domain controllers.
What are the firewall port needed to be open for Active Directory and DNS?
Active Directory
| Client Ports | Server Port | Protocol |
|---|---|---|
| 1024-65535/TCP | 1723/TCP | PPTP |
What are ports 67 and 68 used for?
UDP port number 67 is used for the server and UDP port number 68 is used for the client.
What is 1389 port used for?
Side note: UDP port 1389 uses the Datagram Protocol, a communications protocol for the Internet network layer, transport layer, and session layer. This protocol when used over PORT 1389 makes possible the transmission of a datagram message from one computer to an application running in another computer.
What is the difference between port 139 and 445?
Port 139 is used by SMB dialects that communicate over NetBIOS. It’s a transport layer protocol designed to use in Windows operating systems over a network. Port 445 is used by newer versions of SMB (after Windows 2000) on top of a TCP stack, allowing SMB to communicate over the Internet.
