Hi List,

 

I am just trying to run sssd on Ubuntu 14.04 and it seems to be unable to detect the proper AD site it belongs to.

The thing is, that in order to detect the proper site, it needs to connect to some (random) AD controller first.

In our scenario, the box is only allowed to connect to the controller that belongs to the current AD site. Everything else is blocked by the firewall.

 

So what happens is:

1.       Sssd starts

2.       DNS SRV lookup for the dns domain discovers 15 domain controllers

3.       SSSD tries randomly (couple of them) connect them – one by one

4.       If we are unlucky, none of the first 1-2 controllers found belongs to the current site

5.       SSSD bails out with timeout, marking the whole AD backend offline

 

The solution would probably be to connect all of them at once or extend the timeout after each attempt.

What do you think?

 

Ondrej

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