termmachine

[termmachine]

Hello,
thank you for your input, seems that /etc/systemd/system.conf is the solution. (Sorry I totally missed that part in your guide)

I edited the following parameter in system.conf:
DefaultTasksMax=infinity
DefaultLimitSTACK=infinity
DefaultLimitNOFILE=1048576
DefaultLimitNPROC=infinity
DefaultLimitMEMLOCK=infinity
DefaultLimitSIGPENDING=infinity
DefaultLimitMSGQUEUE=infinity

Before editing limits for NX user was:
DefaultTasksMax=512
DefaultLimitSTACK=8388608
DefaultLimitNOFILE=4096
DefaultLimitNPROC=71327
DefaultLimitMEMLOCK=65536
DefaultLimitSIGPENDING=71327
DefaultLimitMSGQUEUE=819200

Now:
ATORNX002:~ # ps -ef | grep nxserver
nx        1721     1  3 12:15 ?        00:00:01 /usr/NX/bin/nxserver.bin –daemon
root      2384  2331  0 12:15 pts/0    00:00:00 grep –color=auto nxserver
ATORNX002:~ # cat /proc/1721/limits
Limit                     Soft Limit           Hard Limit           Units
Max cpu time              unlimited            unlimited            seconds
Max file size             unlimited            unlimited            bytes
Max data size             unlimited            unlimited            bytes
Max stack size            unlimited            unlimited            bytes
Max core file size        unlimited            unlimited            bytes
Max resident set          unlimited            unlimited            bytes
Max processes             unlimited            unlimited            processes
Max open files            1048576              1048576              files
Max locked memory         unlimited            unlimited            bytes
Max address space         unlimited            unlimited            bytes
Max file locks            unlimited            unlimited            locks
Max pending signals       unlimited            unlimited            signals
Max msgqueue size         unlimited            unlimited            bytes
Max nice priority         0                    0
Max realtime priority     0                    0
Max realtime timeout      unlimited            unlimited            us

All the infinity limits should be no problem, because no of my employees can do anything on my machine, except of using the webplayer with preconfigured session-files.

Or do you see any reason not to do that?

Looks good, now I have to wait and see, if all my resource problems are solved.
Maybe you can leave that topic open for some time 🙂

Thanks,
Termmachine

[termmachine]

Thank you for your input.
Generally I don’t believe, that the machine is overloaded, because on ESXi interface CPU usage is never above 4% utilization and the virtual machine has 18GB RAM assigned and the maximum usage was 10GB (when all 30-40 user are logged in and use the custom RDP and VNC sessions).

May I ask you if you can answer these 3 questions for me.

1) I think I have to look, why /etc/security/limits.conf don’t work properly for the NX user, but works great with all other users.
Have you ever seen this before? Do you know, if I have to configure the limits for NX user on another place?

2) Can there be some limits in htd.cfg (because all my employees use the webplayer)?
For example in this parameters:
#
# All these directives control the management of NXHTD’s
# subprocesses for handling individual HTTP requests.
#
StartServers         1
ThreadLimit        255
ThreadsPerChild    240
ServerLimit         16
MaxRequestWorkers 1920
MinSpareThreads     25
MaxSpareThreads     75

3) How can I reset the server.cfg and node.cfg to defaults?
Because of the bug in “EnableCredentialsStoring” I want to start again from zero, and reconfig my needs.

Thank you!

[termmachine]

Hi, I got an answer from one of our webplayer users. During this ressource-error-state users saw the message “Node was not retrieved” (see screenshot).
Moreover they saw another message like: “Service gesperrt” (German), I think in English it should be like “Service locked” (unfortunately no screenshot available).

Attachments:

1. 

   MicrosoftTeams-image.png
   

[termmachine]

Hello,
the only difference in the past was, that my system was used only by 2-3 users and I allowed now more users to use the systems (up to 20-30 simultaneously). Last week in config files I disabled some unnecessary (for our cases) features like balloon messages, monitor win, pulseaudio and so on to save resources.

I have already checked your linked article, this was the reason I edited the /etc/security/limits.conf.
But I don’t understand, why my set limits don’t work for nx user.
For every other user my set limits works….

The credentialstoring “none” worked in the past, but I cannot say if it was the ressource problem crash, or some other parameter in my config file, that it doesn’t work anymore.
I also saw that the authentication page in webplayer is “English” now (with checkbox for saving credentials) and after that it is “German” again, as set in config files.

Attachments:

1. 

   auth-webplayer.png
   

[termmachine]

I did another Test, seems I have a problem with getting ma /etc/security/limits.conf working…
ATORNX002:~ # ps -ef | grep “nxserver.bin –daemon”
nx        1751     1  1 14:54 ?        00:00:01 /usr/NX/bin/nxserver.bin –daemon
root      2403  2339  0 14:55 pts/0    00:00:00 grep –color=auto nxserver.bin –daemon
ATORNX002:~ # cat /proc/1751/limits
Limit                     Soft Limit           Hard Limit           Units
Max cpu time              unlimited            unlimited            seconds
Max file size             unlimited            unlimited            bytes
Max data size             unlimited            unlimited            bytes
Max stack size            8388608              unlimited            bytes
Max core file size        unlimited            unlimited            bytes
Max resident set          unlimited            unlimited            bytes
Max processes             71327                71327                processes
Max open files            4096                 4096                 files
Max locked memory         65536                65536                bytes
Max address space         unlimited            unlimited            bytes
Max file locks            unlimited            unlimited            locks
Max pending signals       71327                71327                signals
Max msgqueue size         819200               819200               bytes
Max nice priority         0                    0
Max realtime priority     0                    0
Max realtime timeout      unlimited            unlimited            us

In my conf file I have set the following:
nx              soft    nproc           unlimited
nx              hard    nproc           unlimited
nx              soft    as              unlimited
nx              hard    as              unlimited
nx              soft    nofile          1048576
nx              hard    nofile          1048576
nx              soft    sigpending      unlimited
nx              hard    sigpending      unlimited
nx              soft    stack           unlimited
nx              hard    stack           unlimited
nx              soft    msgqueue        unlimited
nx              hard    msgqueue        unlimited

I also did a reboot, but settings dont work.

[termmachine]

Thanks for checking!

Is there any chance to make the startup (initialization) of the webplayer less latency sensitive, so that the webplayer can handle bad network conditions? The windows client is also able to start properly with this bad conditions.

Maybe in a future update?

Thanks!

[termmachine]

Hi, thanks for your answer!

Point 1: Thanks, I registered my mail for notify.

Point 2: Ah ok thanks for clarification. I tried the following:
In IE11 I cleared all browser data (cookies cache everything), restarted the browser, and you are right. On first solaris 10 xdm session initiation, the keyboard was US on the solaris login screen. I switched it to german, works well after that. Then I reopenend the IE11, initiated the same xdm solaris 10 session again, and on login screen the keyboard showed German in NoMachine webplayer, but nevertheless it has the US mapping. I have to switch from German to another language and switch back to German. Only after this I have the German keyboard mapping.

Point 3: Ctrl+Tab works fine. I mean if you have more Tabs in Internet Explorer opened and you switch between the IE-Tabs with Windows Taskbar previews (Mouseover IE icon in taskbar and switch between opened IE tabs). This setting in windows is called “show previews for individual tabs in the taskbar” in tabbed browsing settings (only then you see the opened IE tabs in taskbar). Here the fullscreen closes and cannot be opened again, unless you press Esc in IE. But I also think this is not fixable (due to browser level).

Point 4: Yes, when in fullscreen the “detach window” is disabled. Its ok. But when not in fullscreen and press the “detach window” button, the new window opens but shows the error message, that NoMachine is configured to only accept connections via .nxs-file.
This is the same error message as if I set “EnableWebPreconfiguration” to 1 and go to http://IPofServer:4080/nxwebplayer

Thanks,
Yours termi

[termmachine]

Hello, thanks for your answer.

I solved the font problem with automounting (via NFS) the specific fonts directly on my Terminal Server.

 

[termmachine]

Hello,

thanks for that workaround. With this change XDM on Solaris is possible and I can login.

Is the workaround the final solution, or will this be fixed in an future update of Terminal-Server?

Moreover I found another bug, one of my programs on Solaris needs a Font-Server and if I set our Font-Server in node.cfg (#AgentFontServer) this isn’t working.

When opening the program on Solaris, the NoMachine Client crashes with I/O Error (5)

Thanks!

[termmachine]

Hi,

I am able to get a list of available X desktops and can choose one. But when I want to connect to one, I get a black screen and after a defined time I get kicked out from webplayer. This happens with all of the available desktop managers from the list.

This is the nxclient logfile from one try:

28078 28078 08:40:01 777.753 Main: Enter main function.
28078 28078 08:40:01 777.885 Main: Initialize file ownership.
28078 28078 08:40:01 778.104 Main: Completed file ownership initialization.
28078 28078 08:40:01 778.138 Main: Update parameters.
28078 28078 08:40:01 778.151 Main: Completed parameters update.
28078 28078 08:40:01 778.190 Main: Creating the application in GUI mode.
28078 28078 08:40:01 778.203 Main: Set client environment.
28078 28078 08:40:01 778.229 Utility: Going to set process environment.
28078 28078 08:40:01 778.239 Utility: Environment personal NX directory is [/home/DOMAIN/pozard/.nx].
28078 28078 08:40:01 778.246 Utility: Environment system NX directory is [/usr/NX].
28078 28078 08:40:01 778.251 Utility: Not using parameters.
28078 28078 08:40:01 778.258 Utility: Checking the file [/home/DOMAIN/pozard/.nx/config/player.cfg].
28078 28078 08:40:01 778.290 Utility: Using [/home/DOMAIN/pozard/.nx/config/player.cfg] as config file.
28078 28078 08:40:01 778.297 Utility: Using System NX directory.
28078 28078 08:40:01 778.308 Utility: Reading Personal NX directory.
28078 28078 08:40:01 778.314 Utility: Using Personal NX directory.
28078 28078 08:40:01 778.339 Utility: Loading the global settings.
28078 28078 08:40:01 779.287 Main: Starting slave server.
28078 28078 08:40:01 779.306 MonitorService: Start slave server.
28078 28078 08:40:01 779.419 MonitorService: Create the slave server.
28078 28078 08:40:01 779.431 MonitorService: Creating the slave server instance 11315584.
28078 28078 08:40:01 779.689 MonitorService: Starting the slave server instance 11315584.
Info: Slave server running with pid 28085.
28078 28078 08:40:01 779.709 Main: Initialize qt application.
Info: Listening to slave connections on port 25002.
08:40:01 780 QApplication: Initialize qapplication.
08:40:01 780 QApplication: Create QX11 data.
08:40:01 780 QApplication: Initialize QX11 font config.
08:40:01 786 QApplication: Completed QX11 font config initialization.
08:40:01 786 QApplication: Initialize XRender.
08:40:01 786 QApplication: Completed XRender initialization.
08:40:01 786 QApplication: Initialize application class.
08:40:01 786 QApplication: Completed application class initialization.
08:40:01 786 QApplication: Install default error handlers.
08:40:01 786 QApplication: Completed default error handlers installation.
08:40:01 786 QApplication: Check command line parameters.
08:40:01 786 QApplication: Completed command line parameters check.
08:40:01 786 QApplication: Connect to X server.

Is there a chance to get this fixed in a new nx version update? The remote connection via webplayer was the main reason to buy this product, but if this does not work, the product has been purchased without benefit for our company.

Thanks!

[termmachine]

Hi,

thanks for your reply, I sent the new logs via E-Mail after enabling of debugging.

Thanks!

[termmachine]

Hi,

thanks for your reply and I sent the additional log files to forum(@)nomachine.com again.

To your questions:

1. It seems that there is Kerberos configured on this system, could you check if there are any errors for the user ‘pozard’?

I use Kerberos in combination with samba and winbind, because my users should be able to use the credentials from our companies active directory (windows domain). The authentification works, but I will check the logs.

In the logs we have an error regarding that ticket, but the user directory access seems to be working so it may or may not be related.

User directory access works, I have tested that.

2. When you say the XDM to Ubuntu server works, did you also use user ‘pozard’? If no, please check what happens.

Yes, I also used the pozard user. And tried different users as well. same problem.

3. When you try the failed session, are there any other NoMachine sessions for user ‘pozard’ running?

I tried it with no sessions besides the solaris xdm session and i tried it with other sessions (to other systems) openend besides. the xdm to solaris always fail with cant connect to NoMachine monitor.

 

Thanks!

[termmachine]

I sent the attachments to forum(@)nomachine.com

Cant attach them here.

Thanks

[Author]

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