Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 162
  • Last Modified:

What port is used to authenticate to a server?

I have a site that has no DC but authenticates to a server across a VPN. I am thinking that one of the ports is being blocked by a piece of hardware. What port is used to authenticate a user to the domain? I have a packet capture at the server end to be able to monitor if it is coming in or not.
0
pamplinit
Asked:
pamplinit
1 Solution
 
Krzysztof PytkoActive Directory EngineerCommented:
Hi, plese check these ports if they are allowed on firewall

TCP/UDP 135
TCP/UDP 137
TCP/UDP 53
TCP/UDP 88
TCP 3268
TCP 389
TC/UDP 445

for reference, please check this Microsoft document at
http://technet.microsoft.com/en-us/library/bb727063.aspx

Regards,
Krzysztof
0
 
pamplinitAuthor Commented:
Solution was good - put me in the right direction; had to figure out some additional things along the way, but that's typical. Thanks.
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now