RPC Filter and "Enable strict RPC compliance"

re: RPC Filter and "Enable strict RPC compliance"

tshinder — Wed, 16 May 2007 20:02:05 GMT

Hi Rayne,

Excellenet article! Lots of interesting and useful information

Thanks!

Tom

re: RPC Filter and "Enable strict RPC compliance"

ISA-User — Sat, 02 Jun 2007 01:59:55 GMT

Thank you for the article, very helpful.

Is this going to be fixed in the next release of ISA? It's a rather annoying bug...

re: RPC Filter and "Enable strict RPC compliance"

Brad — Wed, 03 Oct 2007 00:44:34 GMT

Are there any issues with RPC publishing on ISA 2006 with Exchange 2007 and Outlook 2007? I can't 'stay' connected, it keeps dropping off and reconnecting. Outlook 2k/Ex07 works though.

Thanks

Brad

re: RPC Filter and "Enable strict RPC compliance"

Bill — Wed, 17 Oct 2007 18:19:16 GMT

Recently I had to re-install WinXP on a workstation. This caused non-critical login errors in the server security log, event ID 537. I eventually tracked these errors back to automatic certificate enrollment errors, "RPC Server is unavailable", at the workstation. The workstation was requesting a computer certificate.

In my first effort at debugging this problem I disabled the "strict RPC compliance", restarted the ISA 2004 firewall, and manually requested the certificate. No luck! Same error!

Next I disabled the RPC filter, restarted the firewall, and requested the certificate. The certificate request worked. I enabled the RPC filter and restarted the firewall. When I checked the logs today everything is normal. I have noticed in several forums that several people were successful at resolving their RPC issues only by turning off the RPC filter.

Where should I be looking to fix this problem?

1. I believe I have a fully patched ISA 2004 server.

2. The workstation is in the "protected networks" so all protocols should be available. 3. The ISA log does not show any error messages for this workstation. ISA does not "appear" to be preventing the connection.

Troubleshooting RPC across Firewalls (or, what the developers forgot to explain)

Colin Bowern — Sun, 27 Jan 2008 22:13:22 GMT

Applications that want to talk to other servers will often use the Remote Procedure Call (RPC) infrastructure

re: RPC Filter and "Enable strict RPC compliance"

Dmitry Mashkov — Sat, 09 Feb 2008 11:28:26 GMT

I wonder why don't you distribute this article inside your team.. We spent a whole day on a Severity A case collecting and recollecting mutiple diagnostic data from ISA until someone suddenly said: "Hey, we don't support WMI, and we don't care if all other MS products rely upon it". Thank's a lot...

re: RPC Filter and "Enable strict RPC compliance"

Princy — Tue, 30 Sep 2008 08:37:52 GMT

So, is it not possible to configure Windows EBS 2008 security server to connect through WMI? If it is possible, how do we connect? I created a filter and unchecked the "Strict RPC compliance" but that didnt help.