Sounds great.
After some tcpdumping the decisive paramenter should be TcpAckTimeout. Because: I saw that after 5 seconds Guacamole sends a TCP keep alive, but after 9 seconds Guacamole sends a FIN to end the RDP connection attempt. But as soon as the RDP connection is approved by an employee within the 9 sec, the SPS sends an ACK and the RDP session starts well. - Martin On 2023/02/16 12:21:16 Nick Couchman wrote: > [cid:audit_bf_rz_21_DE_RGB_65712845-2146-4396-8f42-bcd2b1e8317e11.jpg] On Thu, Feb 16, 2023 at 2:07 AM Dyck, Martin (BITBW) > <ma...@bitbw.bwl.de<mailto:ma...@bitbw.bwl.de>> wrote: > > > > Hi Nick, > > > > > > > > thank you very much for the quick reply. That sounds promising. > > > > I have seen your pull request #413. So can we expect in the next guacamole > > release a way to modify the TcpAckTimeout? That would be gorgeous! > > > > Yeah, your e-mail prompted me to go re-visit that Jira issue > (https://issues.apache.org/jira/browse/GUACAMOLE-600) and see if I > could make some progress on it. RDP was pretty easy to knock out - > assuming it actually works, we'll see - and I'll work through SSH and > Telnet, as well. VNC I'm not sure about at the moment. > > Another thing to note is that the source code for FreeRDP on Github > actually contains two parameters - TcpAckTimeout and > TcpConnectTimeout. My understanding is that the first one, > TcpAckTimeout, is the timeout for actually getting an initial > acknowledgement from the server that it is alive. TcpConnectTimeout is > likely the timeout between getting the acknowledgement that the server > is alive and when the connection is considered established. However, > checking my FreeRDP headers on my EL8 development system, > TcpConnectTimeout is not present, so I'm guessing this was added much > more recently. Ultimately we can probably support both, we'll just > have to check for that support in the FreeRDP library at build time > and enable it if it exists. All that to say - it isn't clear to me > which one is actually going to be of use to you. > > -Nick >
