SharePoint Connector: Ports used by connector
SharePoint Online Connector
- Port 80 (TCP) - connection with SharePoint using HTTP
- Port 443 (TCP) - connection with SharePoint using HTTPS/SSL
SharePoint On-premise Connector
- Port 80 (TCP) - connection with SharePoint using HTTP
- Port 443 (TCP) - connection with SharePoint using HTTPS/SSL
- Port 636 (TCP) - Synchronizing profiles between SharePoint and AD using SLDAP (Secure LDAP)
- Port 5725 (TCP) - Synchronizing profiles between SharePoint and Active Directory Domain Services (AD DS)
- Port 389 (TCP + UDP) - LDAP Service
- Port 88 (TCP + UDP) - Kerberos
- Port 53 (TCP + UDP) - DNS
For more information about ports in Office 365 visit https://docs.microsoft.com/en-us/office365/enterprise/urls-and-ip-address-ranges
For full list of ports used by SharePoint Sever visit https://blogit.create.pt/fabiocarvalho/2017/02/14/sharepoint-2016-tcpip-ports/
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