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How can I fix a 404 Error using a PPA?

I was trying to install it and I got something like this...

W: Failed to fetch http://ppa.launchpad.net/freenx-team/ppa/ubuntu/dists/oneiric/main/source/Sources  404  Not Found

W: Failed to fetch http://ppa.launchpad.net/freenx-team/ppa/ubuntu/dists/oneiric/main/binary-i386/Packages  404  Not Found

E: Some index files failed to download. They have been ignored, or old ones used instead.

Can someone guide me through installing it on Ubuntu's latest?


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marked as duplicate by Anwar Shah, Mitch, Mik, Takkat, hexafraction Sep 24 '12 at 19:40

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

community info here (help.ubuntu.com/community/FreeNX) - looks like the freenx team has gone very very quiet since maverick. You could use the community info and try to install on oneiric. Tell us what you find out. –  fossfreedom Oct 24 '11 at 23:12
I tried but it seems like the repository does not work with Oneric, (thats what the error above is from, trying to apt-get update before installing) –  Andre Oct 24 '11 at 23:26
follow the guide i gave you - it shows how to tweak the install to install it on later versions of ubuntu. –  fossfreedom Oct 25 '11 at 6:20

4 Answers 4

up vote 4 down vote accepted

What I ended up doing was installing the free Version of NoMachine NX Server, located hefer http://www.nomachine.com/select-package-server.php?id=1&ids=2

The free version is limited to 2 sessions but I figured that should be enough to cover my needs right now. Thanks for your input.

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I would recommend x2go. It's based on NX, but the server is incompatible with FreeNX and Nomachine. But it has things like PulseAudio integration, which makes it a little nicer to play with since you can then use VoIP, etc. Just add deb http://x2go.obviously-nice.de/deb/ lenny main to your repos, update apt, and install x2goserver and then x2goclient on your client, from the same archive.

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x2go.org/uploads/tx_skpdfviewer/installation_x2go_ubuntu_en.pdf I was following the tutorial and my server is not able to retrieve the key. Any help? gpg: requesting key 96F89133 from hkp server wwwkeys.eu.pgp.net –  Andre Oct 24 '11 at 23:32
gpg: requesting key 96F89133 from hkp server wwwkeys.eu.pgp.net gpg: keyserver timed out gpg: keyserver receive failed: keyserver error –  Andre Oct 24 '11 at 23:55
They haven't signed it. Just ignore it and install it. It's generally a bad advise, but in this case.. Well. The world isn't perfect. :) –  Jo-Erlend Schinstad Oct 25 '11 at 0:59
The X2go repository has migrated, use launchpad.net/~x2go/+archive/stable instead. –  Lekensteyn Oct 25 '11 at 13:49

I wrote a script to compile and instal freenx server on Ubuntu 11.10. See my blog:


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sudo add-apt-repository ppa:freenx-team

sudo apt-get update

sudo aptitude install freenx

after that use nxsetup to install necessary files and create the special user “nx” type these "sudo /usr/lib/nx/nxsetup --install" and if you want to install opensource client for freenx use QTNX,QTNX NX client for QT install qtnx using the following command "sudo apt-get install qtnx"

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