Installing NX Server Free Edition (not FreeNX)

t35t0r

I've followed the instructions here http://www.nomachine.com/documentation/admin-guide.php in section "4.4 Replacing the Default SSH Key-Pair with Keys Generated for Your Server"

In my server's /etc/sshd/sshd.conf I've set:

t35t0r · Posted: Sat Jun 23, 2007 5:13 pm Post subject:

mlaccetti · n00b Joined: 30 Nov 2003 Posts: 45 Location: Toronto

Voyageur · Posted: Thu Jun 28, 2007 8:41 am Post subject:

mlaccetti · n00b Joined: 30 Nov 2003 Posts: 45 Location: Toronto

mulk ~ # emerge -pv libX11

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild R ] x11-libs/libX11-1.1.1-r1 USE="xcb -debug -ipv6" 1,393 kB
_________________
Michael Laccetti
michael@s2g-limited.com
s2g Limited
Toronto, Ontario, Canada
Software Development and Consulting

jrenraw · n00b Joined: 23 Aug 2005 Posts: 16

Are there supposed to be new init scripts for 3.0.0? It appears the 3.0.0 config files are different and the checks in the 2.1.0 nxsensor init script check for old variables such as ENABLE_SENSOR, NODE_SENSOR_HOST, and NODE_SENSOR_PORT. Based on the default 3.0.0 node.cfg file they are now EnableSensor, StatisticsHost, and NodeSensorPort.

I started looking into this as I cannot start nxsensor or nxserver. I get a "* nxsensor is disabled in /usr/NX/etc/node.cfg" error. The node.cfg file has EnableSensor = "1". Even after changing the init scripts, I still get this error.

Any ideas?

Rapatskiy Vladimir · n00b Joined: 06 Jul 2007 Posts: 1

paludis -pi libX11:
x11-libs/libX11-1.1.1-r1 {:0} [R] -debug ipv6 xcb

head /etc/hosts:
127.0.0.1 localhost.localdomain localhost unix

Before addition into /etc/hosts got "can't open display" error only

Thank all very much for help!!!

Voyageur · Posted: Sun Jul 22, 2007 8:45 pm Post subject:

NoMachine fixed the XCB issues in the latest releases, sync and get nxnode-3.0.0-r2 and its friends, and you should not need /etc/hosts manipulation anymore!

Also the sensors script and instructions should be fixed now
_________________
Routinely breaking NX, GNUstep, net-ftp, miscellaneous (llvm, filezilla, rdesktop, chromium, ...) packages

Voyageur · Posted: Sat Sep 22, 2007 7:33 pm Post subject:

I'll soon start to write some Gentoo documentation on NX/freenx and friends, if you think some subjects other than the following should be treated, please tell me. Current plan is:

what is NX (technology, licensing, ...)
the different servers and clients (pros/cons)
specific configuration and commands by server (configuration files, where are logs, ...)
some troubleshooting tips
and of course a selection of links for further reading

_________________
Routinely breaking NX, GNUstep, net-ftp, miscellaneous (llvm, filezilla, rdesktop, chromium, ...) packages

animous · n00b Joined: 14 Oct 2006 Posts: 5

Hi,

Voyageur, I'm looking forward to reading those docs..

In the meantime, I'm having trouble.. I installed nxserver-freenx 0.7.0, but I need desktop sharing (connect to the local X server) so I uninstalled that and installed nxserver-freeedition instead.
I edited /usr/NX/etc/server.cfg: EnableDesktopSharing="1", EnableInteractiveDesktopSharing="1", EnableFullDesktopSharing="1", EnableDesktopSharingAuthorization="0" and so on.

/etc/init.d/nxserver restart

I then proceed to connect with the NX client on vista. I get past connection and authentication. I see the list of available sessions and there's only one: the "Local Display". I select that and click "Attach". Then it says "Requesting user's authorization" and then shortly after, "Connection timeout".

I set logs to 7 in server.cfg, but /var/log/nxserver.log is always empty.

What am I doing wrong? How can I make this work?
Thanks!

imanassypov · Posted: Tue Aug 11, 2009 3:12 pm Post subject:

-same issue here. No logs in /var/log/nxserver.log and even though I followed all the suggestions above, still authentication failed for user nx.
It is kinda hard to troubleshoot since it leaves no log trails.
_________________
I.M.

jdkbx · n00b Joined: 03 May 2004 Posts: 40

i have been banging my head against this for about 10 days. the recent openssh update to 5.4_p1 breaks the login with the "public key authentication failed" message. downgrading to 5.3_p1-r1 and its working again.

gr0x0rd · Guru Joined: 12 Aug 2006 Posts: 311

I've been able to easily install and configure nxserver on many machines until recently. Before, it was just a matter of running

gr0x0rd · Guru Joined: 12 Aug 2006 Posts: 311

Update-

After re-emerging nxserver-freenx, and setting it up WITHOUT the --clean --purge options, the server ran successfully and I was able to connect from other boxes.

_________________
~g
emerge -FML...

tuber · Apprentice Joined: 12 Nov 2004 Posts: 267

I managed to get the everything installed, and working, more or less. The problem is that when I try to close the main NX client window, I get the following error box:

imanassypov · Posted: Tue Jun 28, 2011 10:12 pm Post subject:

the answer is in front of you:

rossbcan

I am posting here, not because of Gentoo, but because you folks appear to be NX competent.

I am using NX server on an Openwrt x86_64 system with xorg, fluxbox wm, attempting headless appliance control using NX binaries installed via tarballs (server-3.5.0-9, client, node-3.5.0-7), with all proper configuration to allow shadowing without session owner permission.

What works: using NX client, can spawn xterm session controlling Openwrt on client machine

What fails: shadow sessions, attempting to share root xorg / fluxbox display

How fails: authenticates OK, available sessions window pops up on client, but no sessions to select

NX (server) determines sessions available by /bin/netstat -ln '--protocol=unix', result:

Active UNIX domain sockets (only servers)
Proto RefCnt Flags Type State I-Node Path
unix 2 [ ACC ] STREAM LISTENING 41637 @/tmp/.X11-unix/X0
unix 2 [ ACC ] STREAM LISTENING 41638 /tmp/.X11-unix/X0

debug logfile:

NXNODE: checkLocalSession: Found socket for display [0] - [unix 2 [ ACC ] STREAM LISTENING 41637 @/tmp/.X11-unix/X0]
...
NXNODE: checkLocalSession: Display already checked - skipping
NXNODE: checkLocalSession: NO SESSIONS

full debug log: http://www.rossco.org/NX_ShadowFail.txt

I have run out of clues regarding how to debug this, so am seeking to "get a clue"

given that this is a custom distribution, I have already used strace to identify missing OS commands and libraries.

Thanks; Bill

edit:

nevermind. solved it.

neglecting what it took to get to this point, the particular problem was:

the busybox ps command does not support the format control required by NX server to identify sessions.

needed to replace with ps from procps

which led to new issues, all solved