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- Path: sparky!uunet!mcsun!news.funet.fi!hydra!klaava!klaava!hurtta
- From: hurtta@cs.Helsinki.FI (Kari E. Hurtta)
- Newsgroups: alt.hackers
- Subject: Re: First Post
- Message-ID: <HURTTA.92Aug15141307@plootu.Helsinki.FI>
- Date: 15 Aug 92 12:13:07 GMT
- References: <15tsluINNca6@seven-up.East.Sun.COM>
- <1992Aug15.031932.12426@beaver.cs.washington.edu>
- <cSc-CN_@engin.umich.edu>
- Sender: news@klaava.Helsinki.FI (Uutis Ankka)
- Organization: Department of Computer Science, University of Helsinki, Finland
- Lines: 36
- Approved: Kari.Hurtta@Helsinki.FI
- In-Reply-To: positron@engin.umich.edu's message of 15 Aug 92 03: 35:11 GMT
-
- In article <cSc-CN_@engin.umich.edu> positron@engin.umich.edu (Jonathan Scott Haas) wrote:
- > ObHackQuestion: I'm new to UNIX and X-Windows (been hacking micros for a long
- > time now). Fairly recently I was sitting at a Sparc running X, doing some work,
- > when a message window popped up on my screen. I sure didn't cause it.
- > Someone started talking to me through it... I looked all over the computer
- > lab, nothing but innocent faces. I hadn't done an xhost +, but just to be
- > safe I did xhost - about a zillion times... I also did several whos and
- > a few rmproc -i's, nothing unusual showed up. Then the guy made a naked
- > GIF pop up on my screen, in the middle of this crowded computer lab... I
- > switched off, fast. I was a little pissed, but mainly drooling with envy.
- > How did the guy do it, and how can *I* do it? :)
-
- In X-programs have option -display <display name> just use it.
- If option -display don't have given X-programs use environ variable $DISPLAY.
-
-
- xhost + anyone can connext to you screen from any machine
- xhost - anyone can connect to you screen from these machine
- what you have listed in list of xhost
- (just type: xhost)
-
- Best security is when
- 1) xhost -
- 2) list of xhost is _empty_
-
- Then of course yourself can't connect to you screen, _except_
- when you use Xauthority (this must turn on when X-server is started).
-
- (I strongly recomment to configure system to use Xauthority.)
-
- - K E H
- ( Kari.Hurtta@Helsinki.FI,
- hurtta@cc.Helsinki.Fi,
- hurtta@cs.Helsinki.FI,
- HURTTA@FINUH.BITNET
- )
-