Installing XRDP with update for Larger Monitors

Option 1a: Configure the TCP send buffer size

• Edit the file /etc/xrdp/xrdp.ini

• Locate the line that reads "tcp_send_buffer_bytes". Remove the comment character ("#").

• Edit the value so it now reads: 

tcp_send_buffer_bytes=4194304

• Restart the service:

# systemctl restart xrdp

Option 1b: Configure the kernel network buffer size

• Change the current network buffer size to a larger value with the following command:

sysctl -w net.core.wmem_max=8388608

• Create a new file /etc/sysctl.d/xrdp.conf with the following content:

net.core.wmem_max = 8388608

This will ensure that the value is properly set between reboots. 

Source: Link

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I followed the 2nd option and I have a 35in samsung wide screen monitor.  It would lock up and randomly come back.  User FitAward_6935 goes on to explain that larger monitors now require a higher tcp send buffer.  There is too much fragmentation over the xrdp protocol which then slows the performance.

Fixing Nessus Finding Remote Desktop Protocol Network Level Authentication through GPO

How to fix the Nessus Finding Remote Desktop Protocol Network Level Authentication through GPO.

Click Start -> Control Panel -> Administrative Tools -> Group Policy Management

Step 1:

Open Computer Configuration -> Policies -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Security ->

Require User Authentication for Remote Connections by Using Network Level Authentication -> Enabled

Set Client Connection Encryption Level - > Enabled
Encryption Level: High Level

Control+Alt+Delete on a Mac when RDP'ing to a Windows Machine

I had just found this and can't believe I never knew this. 

fn+Control+Alt+RightArrow

It works just the same as Control+Alt+Delete

Source:  Link