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Very slow AD over VPN

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Name: equin
Date: June 4, 2007 at 11:26:26 Pacific
OS: Windows Server 2003
CPU/Ram: Pentium D / 1024 MB
Product: Dell Poweredge
Comment:

Hey everybody,

Lets get right down to it, here's my issue.... I have a server
sitting here in the office that I wish to use for local file,
print, and terminal services (for a hosted application to
our employee base). I need to take that server and
integrate it into our Windows domain that resides in a
datacenter downtown.

As for the networking side - I have used Windows Routing
and Remote Access services to connect to our VPN
appliance (m0n0wall) in the datacenter via PPTP. Our ISP is
also our colo provider, so the actual route distance is very
short, 3 hops (with 2 of the routers being my own).

When I access files on one of the servers (by lets say.. \
\servername\directory), it is extremely fast - I get our full
10 Mbps between the remote server and the datacenter.
When I try and do anything related to the active directory,
however, it absolutly crawls. Logins can take 10+ minutes
before a password is even returned as bad, adding groups
and users to access lists on files on the server take a
similar amount of time.

I have made sure that DNS is configured correctly, IE
pointing at the domain controller on both the VPN
interface and the network interface itself.

Has anybody ever experienced a problem like this before?

Thanks
-Equin



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Response Number 1
Name: jefro
Date: June 4, 2007 at 19:09:10 Pacific
Reply:

My guess is the monowall setup or limits of packets or packet size. Might even be the correct ports being open. See technet for correct ports. I know it was a test question but I forget everything.

See http://support.microsoft.com/kb/244474
also
http://support.microsoft.com/kb/310456
I read it wrong and answer it wrong too. So get off my case you goober.


0

Response Number 2
Name: equin
Date: June 4, 2007 at 21:45:01 Pacific
Reply:

Ah ha! I figured it out :) My m0n0wall had the "allow fragmented packets" option disabled. I enabled this feature, and the AD was lightning fast.

Thanks much!
-Equin



0

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