Hi All

Maybe someone on here can answer a question that I can't find the answer to on TechNet (quell suprise!)

On my company's wan is a Root CA (microsoft certificate services on Win2003 Ent). This is in site A.

There will be two subordinate CA's installed in Site B and Site C (two sites on cold failover)

We have lots of firewalls in-between the Root and the subs.

Can anyone tell me what firewall ports need to be opened up between site A and B/C?

It uses V3 certs if that makes any difference.

I'm guessing TCP port 135, but I can't find any confirmation of this anywhere.

Cheers

Sean