I have to make a comment here, because there are alot of misconceptions or outdated information. FreeNX is not at all dead. It progressed slowly in 2006, but is not well on the way again. Fabian Franz, the maintainer of the FreeNX project, is working on a complete re-write and has been contacted by at least one software designer from Google, who has promised to help in that process. I agree with Serge van Ginderachter; Server-based computing and thinclients are explosive these days. Ubuntu should have some support for it. Xrdp is available, but when I tried it, it was very unpolished. If it was packaged and used by the increasingly large Ubuntu community, that might change very quickly, which in turn would make Ubuntu available to all thinclients.
2X supports Citrix in their commercial version. Their free version is a 100% open source version of Nomachines server. (They bought their source code). I've only had positive experiences with Nomachines server, and it's very easily installed. FreeNX might be the best choice after the re-write.
I have to make a comment here, because there are alot of misconceptions or outdated information. FreeNX is not at all dead. It progressed slowly in 2006, but is not well on the way again. Fabian Franz, the maintainer of the FreeNX project, is working on a complete re-write and has been contacted by at least one software designer from Google, who has promised to help in that process. I agree with Serge van Ginderachter; Server-based computing and thinclients are explosive these days. Ubuntu should have some support for it. Xrdp is available, but when I tried it, it was very unpolished. If it was packaged and used by the increasingly large Ubuntu community, that might change very quickly, which in turn would make Ubuntu available to all thinclients.
2X supports Citrix in their commercial version. Their free version is a 100% open source version of Nomachines server. (They bought their source code). I've only had positive experiences with Nomachines server, and it's very easily installed. FreeNX might be the best choice after the re-write.