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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!simtel!news.kei.com!news.mathworks.com!transfer.stratus.com!news3.near.net!news2.near.net!xap!xap.xyplex.com!eje From: Eric Ewanco <eje@world.std.com> Newsgroups: comp.os.linux.misc,comp.unix.bsd.freebsd.misc Subject: Re: Extremely low memory system Date: 19 Sep 1995 17:35:40 GMT Organization: XYPLEX Lines: 37 Message-ID: <EJE.95Sep19133540@eje.xyplex.com> References: <43a1u6$572@tuba.cit.cornell.edu> <43cakc$2j7@sixpack.wustl.edu> <43ft9f$50t@news.iastate.edu> <43i36v$473@park.uvsc.edu> <43khlt$ndt@news.iastate.edu> NNTP-Posting-Host: eje.xyplex.com In-reply-to: rhawkins@iastate.edu's message of 18 Sep 1995 19:35:25 GMT Xref: euryale.cc.adfa.oz.au comp.os.linux.misc:61093 comp.unix.bsd.freebsd.misc:6303 In article <43khlt$ndt@news.iastate.edu> rhawkins@iastate.edu (Rick Hawkins) writes: > In article <43i36v$473@park.uvsc.edu>, > Terry Lambert <terry@cs.weber.edu> wrote: > >rhawkins@iastate.edu (Rick Hawkins) wrote: > >I don't understand the "xhost over telnet" thing. If you have an > >IP stack, you run X over it. You don't run X over a telnet session > >in any case. > Our configuration for workstations requires xhost to be run before a > remote system can launch an xwindow. ie, sitting at this machine & > telnettinbg to machineb, i would have to type "xhost machineb" on this > machine. I would then telnet to machineb, and get xwindows rather than > "plain" windows. attempting to run an xapp without xhost results in > notices that this isn't permissible. Yes, but your telnet session really has nothing to do with your xhost or your X app. The xhost is executed locally, and all it does is enable connections to be permitted from a given machine to the local X server. It doesn't maintain any connection with the remote host; you could just as well do "xhost +" and then anyone could connect. Telnet is only used to trigger the launch of the X application; you could very well call someone on the telephone and have them launch the X application to your machine without ever logging in remotely. The result would be the same -- the connection the remote X application makes to your X server is an entirely different connection from your Telnet connection. So xhost and telnet are really unrelated to your X session, and it's not quite correct to speak of doing this as "xhost over telnet." Eric -- # __ __ Eric Ewanco # IC | XC eje@world.std.com # ---+--- Software Engineer, Xyplex Inc. # NI | KA Littleton, Mass.