No available sessions, RHEL 7

[Roamio]

I’ve installed NX 4 on a Windows 8 desktop and two Redhat Linux workstations.  I was able to connect from Windows to the RHEL 6.4 server but was getting the “No available sessions” error when trying to connect the RHEL7 server.  I found these errors in the /usr/NX/var/log/nxerror.log file:

bash: netstat: command not found…

bash: ck-list-sessions: command not found…

I copied netstat and ck-list-sessions from the 6.4 to the 7 server and am now able to connect to both boxes.

[nars]

Hello Roamio,

could you please give us information about the kind of installation media of this RHEL7? (i.e. was it boot.iso or dvd.iso?).

Did you uncheck installation of any default packages during system installation?

[Roamio]

It was installed from the dvd.iso with a kickstart file that included the following:

%packages

@debugging

@desktop-debugging

@development

@fonts

@gnome-desktop

@internet-browser

@x11

@print-client

 

libaio-devel

compat-libcap1

ksh-20120801

sysstat

wget

java-1.7.0-openjdk-devel

%end

I understand that netstat is deprecated and that ss should be used in its’ place.

[nars]

Currently netstat is required for the proper working of NoMachine. This should be changed in future versions. You can install it by installing net-tools package:

sudo yum install net-tools

 

ck-list-sessions is not required, message about that it is not found is a cosmetic issue and also should be fixed in next versions.

[RHELuser]

Dear all,

I’ve got also a problem with RHEL7 and virtual desktop. I’ve installed NoMachine Workstation 4.2.27-2 version on RHEL7 server and NoMachine 4.2.27-2 client version on CentOS 6.2.

I be able to connect to the physical display but i’ve got an error when i try to use a virtual desktop : “Oh no! Something has gone wrong”

And i’ve got only “Logout” button.

Did you have this error?

Thanks.

[Bilbotine]

Hi RHELuser,

Currently Gnome 3 (default desktop in RHEL7) doesn’t work in virtual sessions.

A workaround is provided in the article “Supporting the default Gnome 3 on Fedora 15 or later with NoMachine” (https://www.nomachine.com/AR06L00806)

NoMachine 5.0 will enable Gnome 3 and Unity in virtual sessions.

[RHELuser]

Thank you for your response.

This workaround works.

Do you know the release date of NoMachine 5?

• This reply was modified 10 years, 3 months ago by RHELuser.

[Britgirl]

An approximate time could be the second quarter of 2015 (provided that development goes smoothly between then :-)) We’ll keep you updated via the forums.

[Author]

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