Issues with logging in and maintain remote RDP sessions with XRDP to VPS ubuntu 22.04

Question

I have 2 VPS servers running on Ubuntu 22.04. 1 x86_64 at Contabo (VPS1) and one Oracle cloud free tier ARM64 (VPS2).

On Vps1, xfce4, loging in over RDP for some reasons, only allows 1 device at the moment. Any attempt to connect from another client will be refused. My recent changes are to delete the annoying color profile password prompt by sudo rm /usr/share/polkit-1/actions/org.freedesktop.color.polic and to improve xrdp smoothness, I edited the xrdp.ini and sesman.ini with these values:

Policy=UBDI
max_bpp=16
xserverbpp=16
use_compression = yes
crypt_level=medium
KillDisconnected=true
DisconnectedTimeLimit=0
tcp_send_buffer_bytes=4194304
Tweak for TCP (2x request buffer size):
sudo sysctl -w net.core.wmem_max=8388608

On VPS2, I tried installing xfce4 but it only ran once then reverted back to ubuntu-desktop on its own. I use the same values above in xrdp.ini and sesman.ini and deleted the password prompt too. But when logging in from a different client, the previous session will get disconnected which is actually what I want to be able to do on VPS1. However, after a little while of disconnection, when I log in again, the session seems to have been cleared and all the apps/browsers that were open are now closed, which is definitely not desirable on either VPS’s.

I’m also trying to install box86_64 to run wine and windows app on VPS2 (ARM64) and been hitting a bick wall. But I should probably be asking question about that in a separate thread.

Can any one help me out with some pointers, specific codes are much appreciated as I’m still pretty novice with Linux. Thank you in advance.

Answer 1

Upon reading this thread and some extra tinkering, I changed my xrdp.ini and sesman.ini from above values to below:

Policy=default
max_bpp=16
xserverbpp=16
use_compression=yes
crypt_level=medium
KillDisconnected=false
DisconnectedTimeLimit=0
tcp_send_buffer_bytes=4194304
Tweak for TCP (2x request buffer size):
sudo sysctl -w net.core.wmem_max=8388608

And that seems to do the trick for VPS2 at least. I can’t test on VPS1 yet. And will update this when I do.

Edit: confirmed to work as intended for both VPS’s. Sessions now maintained and can be accessed from different devices (only 1 at a time by 1 user). Also performance is acceptable via different clients with native RDP app on Windows takes the cake after changing the connection speed to “lan…”