On 08/06/10 16:48, J. Roeleveld wrote: > On Tuesday 08 June 2010 02:14:55 Jake Moe wrote: > >> I've got two Gentoo boxes, and would like to run X apps from both on one >> display. From reading up on it, it appears that while this is possible, >> it's also not recommended from a security standpoint, and the few HOWTOs >> I've found for it seem to be 4-6 years old. Can anyone tell me: >> > Security: Yes, it is not recommended, however, if you trust everyone who can > connect to your network, then it is safe enough. > > >> a) if this is a good idea in the first place, >> > Depends on what you want to achieve. If you have only one screen and/or one > machine with a decent graphics card then it does make sense. > However, X is a very inefficient protocol. Eg. it can clog the network. > > >> b) should I be looking at VNC instead of remote X, >> > Maybe, but VNC puts the remote screen in a window. > > >> c) is there another option I should be looking at, and >> > Yes :) > > >> d) if there is a good HOWTO on setting up whichever is the best to use >> on a recent Gentoo system? >> > I use X-tunneling with ssh. > To get this to work, start with trying the following: > > (machineA has screen, machineB is screenless) > on machineA # ssh -Y machineB > then, on machineB, start the program you want displaying on machineA, for > instance firefox. > > This is both easier to implement and also removes the security issues as ssh > is encrypted. > > HTH, > > Joost Roeleveld > > j...@aus10224 ~ $ ssh -Y jhb5970 Password: Last login: Wed Jun 9 08:05:09 EST 2010 from 192.168.0.114 on pts/0 j...@jhb5970 ~ $ firefox Error: no display specified j...@jhb5970 ~ $ konqueror konqueror: cannot connect to X server j...@jhb5970 ~ $
Did I not do it right? jhb5970 is not "screenless", it's a laptop, but it's easier to use only one pane of glass. I'll probably only want to do this when machineA is, say, emerging updates, but I want to do something CPU-intensive on that computer, so I can utilize the idle machineB. Make sense? Jake Moe
