Firewall Ports for Active Directory Integration with Proxmox

[mirza]

Hi everyone,

I’m currently setting up Proxmox in an environment where the host is behind a firewall. I want to integrate Proxmox with Active Directory for user authentication and management.

Could anyone clarify which firewall ports I need to open to ensure proper communication between Proxmox and Active Directory?

Thanks in advance for your help!

 

[cheiss]

Hi,

Could anyone clarify which firewall ports I need to open to ensure proper communication between Proxmox and Active Directory?

there is nothing really specific to Proxmox VE here, but rather standard AD/LDAP configuration.

I assume the AD server is running somewhere external to the Proxmox VE nodes?
Proxmox VE only uses the port configured in the realm setup for communication with the Active Directory server, so you'd need to allow outgoing communication to that (external) server/port - so it's specific to your setup. But most likely 389 or 636 - see also https://learn.microsoft.com/en-us/t...ory/config-firewall-for-ad-domains-and-trusts.

If you do not restrict outgoing traffic from the Proxmox VE nodes, it should work without special configuration anyway.

 

[mirza]

Thank you and Yes, the AD server is external to Proxmox nodes. I will give that a try.