The repositories for freenx for unstable distribution is at

deb sid nx
deb-src sid nx

Add the above two lines to /etc/apt/sources.list and then apt-get install freenx. NOTE: the links above are no longer being maintained.

Other repositories are

deb ./
deb unstable nx

If using Sarge, use the following repository

deb ./

Solutions for NX Client version 2.0.0 and FreeNX 0.4.x and 0.5.0.

If you have problem connecting with new NX Client ver. 2.0.0, there are 2 patch, which working for me with NX Client ver. 2.0.0-93:

'fake cookie authentication problem':

Some new clients uses 1.4.0 as proto version. You have to make sure that 'fake cookie authentication' is working on the server. Look at nxnode and search for that string in 'node_startsession()' function and edit it.

For freenx 0.4.x nxnode in function 'node_startsession()' {{{ if [ "$ENABLE_1_5_0_BACKEND" = "1" -a "$clientproto" = "1.5.0" ] || [ "$ENABLE_1_5_0_BACKEND" = "1" -a "$clientproto" = "1.4.0" ]

fi }}}

For freenx 0.5.0 nxnode in function 'node_startsession()' {{{ if [ "$clientproto" = "1.5.0" ] || [ "$clientproto" = "1.4.0" ]

fi }}}

Pre 1.5 clients will face trouble in this case, though - but works for me (no users with old clients). As I see in comunnication with client ver. 2.0.0-93, it use 1.5.0 proto version, so this is for older 2.0.0 clients.

'Backingstore problem':

Thorsten Sandfuchs found some issues concerning backingstore. Problem arouse as you try to connect to a 0.5.0 installation with no 2.0.0 backend support and a 2.0.0-client. As Nomachine changed the behaviour of the backingstore-option. In 1.5.0-clients the client sends "always, when_requested" et all and freenx just passed this string to the nxagent-call. The new client now sends "backingstore=1" and the 1.5.0-nxagent issues a warning and an error with "no argument requiered for -bs" or with "Error: NX Agent exited with exit status 1.". You can read all his message here: [ Backingstore or 2.0.0-client and 1.5.0 backend and freenx-0.5]

Look at nxnode and in function 'node_start_agent()' after this line

[ -n "$backingstore" ] && B="-bs $backingstore"

add these lines: {{{ # backingstore = { "when_requested", "always", ... } [ -n "$backingstore" -a "$ENABLE_2_0_0_BACKEND" != "1" -a "$backingstore" != "1" ] && B="-bs $backingstore" # backingstore = 1 (new nxclient 2.0.0 doesn't send any strings in the option-string for backingstore anymore) [ -n "$backingstore" -a "$ENABLE_2_0_0_BACKEND" != "1" -a "$backingstore" = "1" ] && B="+bs" # backingstore = 1 and 2.0.0-Backend EXPERIMENTAL [ -n "$backingstore" -a "$ENABLE_2_0_0_BACKEND" = "1" ] && B="-bs $backingstore" }}}

This works using nxclient version 2.0.0-98.

--[:Predseda3D:Predseda3D] 2006-08-02

Missing Color Definitions Cause Some Applications to Fail

After upgrading to the latest (xorg/testing 1:7.0.22), some applications will fail to start while using FreeNX (freenx 0.4.4+0.4.5-4) with the following error:

(application): Cannot allocate color (some color), such as:

xterm: Cannot allocate color green

Other applications will fail with similar errors.

The reason for this is that nxagent is looking for rgb.txt in /usr/X11R6/lib/X11, and it is not present.

Issuing a:

ln -s /etc/X11/rgb.txt /usr/X11R6/lib/X11/rgb.txt 

and restarting nxserver clears up the issue.

Enable logging by default to find causes of problem

When troubleshooting, edit /etc/nxserver/node.conf to enable logging to a specific log file, set the log level (NX_LOG_LEVEL=3) and to keep the log files (SESSION_LOG_CLEAN=0). Then look in ~/.nx of the user trying to log in to find out more when in trouble.

Missing fonts Cause Some Applications to Fail

When seeing "The connection with the remote server was shut down. Please check the state of your network connection.", it could be missing fonts.

As noted on, changing AGENT_EXTRA_OPTIONS to

DEFAULT_FONT_PATH=$(echo $(grep -v '^ *#' /etc/X11/xorg.conf | grep FontPath | awk '{print $2}' | sed -r "s/^[\"']|[\"']$//g") | sed 's/ /,/g')

in /etc/nxserver/node.conf will find all the FontPaths in xorg.conf .

Fixing garbled icewm under freenx

icewm / imlib based programs uses shared memory which apparently is not (fully?) supported or being misused by imlib(?). This results in a garbled screen. Add "-noshmem" to AGENT_EXTRA_OPTIONS_X in node.conf . See also .