In the Solaris configuration there must be a configuration option which makes the server poll the client on port 2000 when launching an OpenWindows desktop from that client. The users gets his desktop more or less instantly. After this entry the server/client communication continues. Basically telling the server that there’s nothing there. Here we clearly see that the same traffic is sent by the server (.10), but the client (.227) immediately answers with RST, ACK response. If we compare this with the trace to the server (.10) when the Windows Firewall is OFF: Why is the server initiating traffic to the client?! It's the client which is contact the server. After +- 3 minutes the server continues X11 traffic and the user gets his desktop. The client does not respond to these queries. What we are seeing here is that the server(.10) is trying to reach the client (.227) on port 2000. So in the background there’s more (client-server) traffic, such as regular X11 traffic. In this trace I’ve filtered all other traffic than the one to port 2000. Now what is that?!īelow is an excerpt from a trace on the client to the server when the Windows Firewall is ON: The so called any rules ) And we were still seeing the issue. In the end we let the firewall on, but for both in and outbound we built rules which were supposed to allow all traffic. We thought we had them all covered, but still no luck. Now one could think we needed to open some specifics port. Very soon we found out that if we'd set all Windows Firewall Profiles to 'off' on the Windows 7 client, we didn't saw the issue. Other servers did not posed this problem. This delay was only seen when connecting to this specific Solaris server. More specific whenever we used Xming to connect to an OpenWindows desktop session on a Solaris server, we were seeing a delay of about 3 minutes before actually seeing the desktop. But as I found some forum posts here and there which look like the same I thought I'd post it nevertheless.Ī while ago I was troubleshooting a situation where we seemed to experience some kind of delay in an application startup. First off, this is a very very very specific issue which I think not many people will run in to.

Xming 7