The Arctica Project is a fork/spin-off of X2Go, and overlapping with X2Go in several goals as well as the names of the volunteers involved.
Currently, one of the most important sub-projects within the Arctica project is the task of updating the NX-Libraries (the code that NoMachines was forced to release under GPL, on which FreeNX, NeatX, X2Go etc. all depend). Some X2Go volunteers are joining in on that effort as well, also, there are sponsors involved, namely Qindel/TheQVD, who work on improving the NX-Libs themselves as well as paying others to do so.
From time to time, Arctica will bundle up a release (see e.g. the announcement here: https://sunweavers.net/blog/node/52), but they provide nightly builds as well: https://sunweavers.net/blog/node/20.
X2Go bases its NX-Libraries releases on Arctica's release versions, similar to how Debian prefers “stable and well-tested” over “bleeding edge”.
It is possible to “pimp” X2Go with Arctica's NX-Libs, though we strongly advise against doing so on a production server.
Please, try this on a test server, not on your production machine, and always make a backup copy before installing/upgrading.
That said, we are heavily interested in finding betatesters, so these new NX-Libs may become part of X2Go proper in the future.
If you're able and willing to test, then please read on.
This should work for Debian (starting with Jessie) as well as for Ubuntu Server (starting with 16.04 LTS).
It has been tested with Ubuntu Server 16.04 and 18.04, as well as Debian Buster with the “regular” (non-nightly) Arctica repository. Everything else is still awaiting tests by volunteers like you.
#!/bin/bash # https://wiki.x2go.org/doku.php/doc:howto:nx-libs-betatesting set -e # abort on all errors if ! [ $(id -u) -eq 0 ] ; then echo 'This script must be run as root, or with sudo prefixed to its call.' exit 1 fi if [ -f /etc/os-release ] ; then . /etc/os-release else echo '/etc/os-release not found. Unable to detect distribution.' exit 1 fi if [ 'debian' != "$ID" ] && [ "ubuntu" != "$ID" ]; then echo 'Unsupported distribution. Only Debian and Ubuntu are supported at the moment.' exit 1 fi apt install gnupg -y if [ 'debian' = "$ID" ] ; then # add the X3Go repo key (Debian only) apt-key adv --recv-keys --keyserver keys.gnupg.net E1F958385BFE2B6E fi # add the X2Go repo if [ 'ubuntu' = "$ID" ] ; then add-apt-repository ppa:x2go/ppa # for Ubuntu elif [ 'debian' = "$ID" ] ; then echo 'deb http://packages.x2go.org/debian '$VERSION_CODENAME' main' >/etc/apt/sources.list.d/x2go.list # for Debian fi # add the Arctica repo key wget -qO - http://packages.arctica-project.org/archive.key | apt-key add - # add the Arctica repo echo 'deb http://packages.arctica-project.org/'$ID' '$VERSION_CODENAME' main' > /etc/apt/sources.list.d/arctica.list # OR try the Arctica nightly repo # echo 'deb http://packages.arctica-project.org/'$ID'-nightly '$VERSION_CODENAME' main' > /etc/apt/sources.list.d/arctica.list # update the package list before installing anything apt update # update the base system to the current package versions # Download everything first, then upgrade, then dist-upgrade apt dist-upgrade -d -y apt upgrade -y apt dist-upgrade -y # Install X2Go packages, a minimal MATE Desktop, and Firefox as test application apt install -y \ x2goserver \ x2goserver-xsession \ x2gomatebindings \ mate-core \ mate-applets mate-menus \ mate-notification-daemon \ mate-screensaver \ libcanberra-pulse if [ 'ubuntu' = "$ID" ] ; then apt install -y firefox ubuntu-mate-themes # for Ubuntu fi if [ 'debian' = "$ID" ] ; then apt install -y firefox-esr mate-themes # for Debian fi # add a user if ! id -u x2gotestaccount ; then useradd -m -s /bin/bash x2gotestaccount echo 'Please set a password for user "x2gotestaccount".' passwd x2gotestaccount fi echo 'Setup complete.'
On the X2GoServer, edit /etc/x2go/x2goagent.options:
X2GO_NXAGENT_DEFAULT_OPTIONS+=“ +extension XFIXES”
Also on the X2GoServer, verify that
/usr/bin/x2goagent is a symlink pointing to
Next, disable XINERAMA in your X2GoClient's session profile(s).
apt update && apt dist-upgrade -d -y && apt upgrade -y && apt dist-upgrade -yon it.
If you don't/can't do that (e.g. because you're running Windows or macOS on your client), connecting with X2GoClient 18.104.22.168 should still work, though you might not experience all the benefits of the new NX-Libs.
ps u -C x2goagent(identify the pid of your session's x2goagent)
grep -e libX11 -e libNX_X11 /proc/<pid>/maps
This should only show libraries from the nx installation directory, not from the system.
Please follow the instructions listed at Reporting Bugs. Do subscribe to the X2Go-Dev Mailing List beforehand, please (instructions on how to do that are linked within that page). It may well be possible that your bug report gets forwarded to Arctica, so you might want to subscribe to their mailing list(s) as well.
Also, when reporting a bug, please indicate which repositories you were using, and the X2Go/NX/Arctica-related package versions you have installed.