Stopping or Changing RPC's.

PoopyTheJ · Oct 9, 2004, 11:31 PM

Ok, so I have a program which makes an RPC to a client, client returns value, server(A) returns that value to another server(B). That server then returns a value to server (A). Which then takes an action. I want to make server A disregard the value coming from server(B). This is over the internet as a TCP, and blocking all incoming transmissions from server B via firewall fixes this issue, server(A) gets no returned value but I get some unintended side effects. I ran a packet sniffer to see what was going on and I can see where the values are being exchanged but see no effective way of stopping it. I am not a coder at all but understand some of the things that go on as far as Remote procedure calls et al. Is there someway to just block the DCERPC protocol TCP transmissions allowing everything else to go through, or some way to hook a process into the server(A) mine to disregard the information coming from server(b)?

Oct 9, 2004, 11:31 PM	#1
PoopyTheJ DriverHeaven Extreme Member Join Date: Jan 2003 Location: Ohio Posts: 1,588 Rep Power: 65	Stopping or Changing RPC's. Ok, so I have a program which makes an RPC to a client, client returns value, server(A) returns that value to another server(B). That server then returns a value to server (A). Which then takes an action. I want to make server A disregard the value coming from server(B). This is over the internet as a TCP, and blocking all incoming transmissions from server B via firewall fixes this issue, server(A) gets no returned value but I get some unintended side effects. I ran a packet sniffer to see what was going on and I can see where the values are being exchanged but see no effective way of stopping it. I am not a coder at all but understand some of the things that go on as far as Remote procedure calls et al. Is there someway to just block the DCERPC protocol TCP transmissions allowing everything else to go through, or some way to hook a process into the server(A) mine to disregard the information coming from server(b)? __________________ [COLOR=Blue]“Alright boys, let’s start her up and see why she doesn’t work.” - John Fritz "I aim to misbehave" Malcolm Reynolds ATI Catalyst Beta Tester[/COLOR]