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Is port 389 on AD in anyway used or required when a new client …
WEBAug 14, 2020 · Thanks for that information. I am aware that port 389 is required for those operations you listed in AD. My question is, if there is any importance of port 389 on the AD server "when a client is querying and joining domain via secure LDAP".
Learn.microsoft.comLDAP session security settings and requirements after …
WEBJun 5, 2024 · Sessions on ports 389 or 3268 or on custom LDS ports that don't use TLS/SSL for a Simple Authentication and Security Layer (SASL) bind. Sessions that use TLS/SSL by using a predetermined port (636, 3269, or a custom LDS port), or standard ports (389, 3268, or a custom LDS port) that use the STARTTLS extended operation.
Learn.microsoft.comTCP and UD ports required for communication between Domain …
WEBJun 23, 2022 · UDP Port 389 for LDAP to handle normal queries from client computers to the domain controllers. TCP and UDP Port 445 for Replication, User and Computer Authentication, Group Policy, TCP and UDP Port 464 for Kerberos Password Change TCP Port 3268 and 3269 for Global Catalog from client to domain controller.
Learn.microsoft.comConfigure firewall for AD domain and trusts - Windows Server
WEBJun 5, 2024 · This article describes how to configure a firewall for Active Directory domains and trusts. Original KB number: 179442. Note. Not all the ports that are listed in the tables here are required in all scenarios. For example, if the firewall separates members and DCs, you don't have to open the FRS or DFSR ports.
Learn.microsoft.comService overview and network port requirements for Windows
WEBDec 26, 2023 · In Windows Server 2008 and later versions, and in Windows Vista and later versions, the default dynamic port range changed to the following range: Start port: 49152. End port: 65535. Windows 2000, Windows XP, and Windows Server 2003 use the following dynamic port range: Start port: 1025. End port: 5000.
Learn.microsoft.comLDAP is used over port 389 although LDAPS is configured in AD
WEBOct 11, 2023 · Problems. If the MMC (for example Active Directory Users and Computers) is used, the connection is still made via port 389. From a third-party application which uses the PowerShell commandlet Get-GPOReport (more details here) the active directory port is configured with 636 but in wireshark you only see connections over port 389.
Learn.microsoft.comDisable LDAP 389 and enforce LDAPS 636 in AD - Microsoft Q&A
WEBMar 11, 2024 · It's normale behavior, the port 389 will continue used tby client to send a ping LDAP during the Dclocator process in order to identify the closest domain controller and domain join. But our case is only 389 traffic, no 636 traffic after applied the GPO. You should avoid blocking this port 389 because there are certain services which cannot
Learn.microsoft.comHow to use PortQry to troubleshoot Active Directory connectivity …
WEBDec 26, 2023 · Example 1: Using Portqry to test connectivity over a specific port and protocol using UDP port 389 as an example. This example demonstrates how to use PortQry to determine if the LDAP service is responding. By examining the response, you can determine which LDAP service is listening on the port and some details about its …
Learn.microsoft.comHybrid Identity required ports and protocols - Azure - Microsoft …
WEBNov 6, 2023 · 389 (TCP/UDP) Used for data import from AD. Data is encrypted with Kerberos Sign & Seal. SMB: 445 (TCP) Used by Seamless SSO to create a computer account in the AD forest and during password writeback. For more information, see Change a user account's password. LDAP/SSL: 636 (TCP/UDP) Used for data import from AD. …
Learn.microsoft.comUsing the PortQry command-line tool - Windows Server
WEBDec 26, 2023 · LDAP (UDP port 389) NetBIOS Adapter status query (UDP port 137) In these cases, PortQry uses an ephemeral port for the second test. When this occurs, PortQry records "Using ephemeral source port" in its output. If the computer where PortQry is installed also runs the IPSec policy agent, UDP port 500 may not be available to use …
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