Xref: utzoo comp.windows.x:30346 comp.windows.open-look:218 Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!att!cbnewsh!wolf From: wolf@cbnewsh.att.com (thomas.wolf) Newsgroups: sun.open-windows,comp.windows.x,comp.windows.open-look Subject: Re: X thru modems Message-ID: <1990Dec7.225550.17100@cbnewsh.att.com> Date: 7 Dec 90 22:55:50 GMT References: <4146@male.EBay.Sun.COM> Organization: AT&T Bell Laboratories Lines: 36 From article <4146@male.EBay.Sun.COM>, by eric@lifen--.Sun.COM: > > Is there a way to forward X11 client/server data (that would normally go > straight to the X11 server) through a modem to an X server on a host on > the other side? Is it a matter of finding out which socket the X server > listens on (BTW, what address DOES it listen on?), and then creating a > process to "cat" from that port through the modem (and then > "cat" from the modem on the other side to the address the remote X > server is listening on? > > If it was that simple... I think there are two ways you can go: (1) Serial-Line Internet Protocol (SLIP) or (2) use Graphon's X terminals for the server side. The first solution is a pretty standard one, I think. If your hosts are Suns, I think they come with SLIP (never tried it myself). The speed might be a problem if you're running over modems slower than 56kb :-) From what I've seen of the Graphon terminals, the second solution works pretty nicely over modems - I believe 9.6kb is enough to have decent response. The reason the system is so "responsive" is that no X protocol traverses the link - Graphon uses their own command-set and probably do heavy compression to boot. With regards to the address of the X server: I believe it resides at port 6000+n where 'n' refers to the display number. For instance, if you have your DISPLAY variable set to :0.0, the first '0' is 'n'. Hope this helps, Tom -- +-------------------------------------+ "Stupid" questions are better than | Thomas Wolf | (201) 615-4789 | no questions at all. No answer is | Bell Labs, NJ | wolf@mink.att.com | better than a stupid one. +-------------------------------------+