Connection to the server was shut down

[wccppa1]

I have a NoMachine Cloud Server running on Windows. I also have NoMachine Cloud Server running on a Mac. I can connect to the Mac from the Windows machine using NoMachine. I can run the webplayer on the Windows machine and see the MAC. When I connect, I see the Mac computer but when trying to connect I receive the message, OOPS the connection with the server was shut down.

I have edited the config.cfg to configure the sectionsession and I have added the client certificate as per the Cloud Server Installation and configuration document.

We are using ConnectionMethod NX

Any Suggestions?

Thank you, Peter

[Irek]

Hello Peter,

We will need debug NoMachine Cloud server logs from Windows machine to investigate further. Please follow the instructions here:

https://www.nomachine.com/DT07M00098#1

especially point 1.3:

”
1.3. If you have a Cloud Server installed and the problem affects sessions by the web:
Edit the /usr/NX/etc/cloud.cfg file. Uncomment and set the following:

SessionLogLevel 7
”

Send them to forum[at]nomachine[dot]com

[wccppa1]

Log files sent via email to to forum[at]nomachine[dot]com. Thank you, Peter

[Irek]

Hello Peter,

unfortunately not all logs were sent, the most important ones were: nxerror.log and nxserver.log, which were missing.

However, looks like certificate of MAC machine was not added correctly on Windows server.
Please try to add again certificate as described in article:

https://www.nomachine.com/AR07K00679

If certificate was added incorrectly in nxerror.log you will see logs similar to those below:

”
1812 10092 16:51:35 674.464 Encryptor/Encryptable: ERROR! Failed to authorize the server certificate.
Error: Failed to authorize the server certificate.
1812 10092 16:51:35 675.465 Channel/Channel: WARNING! Runnable DaemonReader failed for FD#768.
1812 10092 16:51:35 675.465 Channel/Channel: WARNING! Error is 13, ‘Permission denied’.
”

If still you cannot connect to MAC machine using Web Player, pleease send to us logs, and please be sure that all logs are added – especially nxerror.log and nxserver.log.
also please send to us client.crt file from Windows machine

”
%PROGRAMDATA%/NoMachine/nxhtd/.nx/config/client.crt
”

and certificate taken from Mac OS, which were added to client.crt on Windows:

”
Konsole output
/Applications/NoMachine.app/Contents/Frameworks/etc/keys/host/nx_host_rsa_key.crt
”

Send them to forum[at]nomachine[dot]com

[wccppa1]

Thank you, Im still having trouble. I sent more logs to forum[at]nomachine[dot]com. Thanks again! Peter

[Irek]

Hello Peter,

as we checked the logs and the client.crt looks like certificate was wrongly added in client.crt.

”
4276 3592 16:02:13 565.711 Encryptor/Encryptable: ERROR! Failed to authorize the server certificate.
Error: Failed to authorize the server certificate.
”

Please take a look at file client.crt:

”
Host:172.16.73.203—–BEGIN CERTIFICATE—–
”

the HostName and certificate should be splited into 2 separated lines, so it should looks like:

”
Host:172.16.73.203
—–BEGIN CERTIFICATE—–
”

Please correct client.crt file as shown above, and now it should work.

[wccppa1]

THANK YOU THANK YOU THANK YOU

[Author]

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