XFree86 / XDarwin and change of hostname

[Tabitha McNerney]

Oops, sorry about my mistake. I hit the send button too soon. In my message
below, you can replace all instances of ComputerNameBad with
ComputerNameMisspelled

Sorry, I had started to edit my email using the example of ComputerNameBad
but I later changed it (to have more meaning to the original thread) to
ComputerNameMisspelled and I forgot to find / replace later.

Tm

On 2/24/07, Tabitha McNerney <tabithamc at gmail.com> wrote:
>
>
>
> On 2/24/07, Paul Beard <paulbeard at gmail.com> wrote:
> >
> >
> > On Feb 24, 2007, at 5:02 PM, Tabitha McNerney wrote:
> >
> > Xlib: connection to ":0.0" refused by server
> > > Xlib: No protocol specified
> > >
> >
> > I'm not an expert with regard to X so I wonder what to make of this.
> > Also (even before I made the changes to the Computer Name), once I had X up
> > and running, I could only run apps like OpenOffice from an xterm terminal
> > shell but never from an OS X terminal shell. I suppose it must have
> > something to do with how Xterm is configured ... are there some decent
> > HowTos to read with regard to how to best set up one's bash profile on OS X
> > in order to be able to run X apps from the normal terminal shell instead of
> > requiring to run under Xterm, all in the context of MacPorts?
> >
> >
> > try running xhost + in the xterm window (to allow any host to connect)
> > then trying your command again. X doesn't permit connections by default.
> > Once it works you can narrow it down to one or a group of hosts.
> >
>
> Paul, thanks very much.
>
> Using xhost I had no success because I realized that I have an .Xauthority
> file in place that was preventing changes when running xhost + in xterm (the
> hidden Xauthority file specifically ~/.Xauthority must have been generated
> soon after I had installed the XFree86 MacPort and run startx for the first
> time).
>
> Tanks to your suggestions, I discovered the xauth command line tool. xauthlet me change the .Xauthority file easily. For example, to remove a display
> name (where the display name includes the hostname), I used xauth in
> interactive mode like this (note: for security purposes I have abbreviated
> the hex value of the MIT-MAGIC-COOKIE-1 and made up a display name
> representing the hostname that I didn't like due to a spelling error, and
> also I did not list the entire output from an xauth "list" on the machine
> I'm working on):
>
> $ xauth
> > Using authority file /Users/admin/.Xauthority
> > xauth> list
> > ComputerNameMisspelled.local /unix:0  MIT-MAGIC-COOKIE-1  xyzabc
> > xauth> remove ComputerNameBad.local/unix:0
> >
>
> To add a new display name containing the corrected hostname, I found a web
> page via Google that gave an example of how to do this for the local host
> name all in one line of shell code:
>
> $ dd if=/dev/urandom count=1|md5deep|sed -e 's/^/add :0 . /'|xauth -q
> > 1+0 records in
> > 1+0 records out
> > 512 bytes transferred in 0.000103 secs (4971027 bytes/sec)
> >
>
> The first line above, I used the md5deep MacPort to create the hash from
> the output of random, and then sed grabs the has and tacks it on to the
> input that can be used for xauth (in quiet mode thus "-q") like this
>
> add :0 . bbff4096504ef19a7b76bb83de4bdb2c
> >
>
> Apparently xauth then assume that the hostname that is part of the display
> name is the current host name (it must read this when it is run) and since I
> had changed my Computer Name (before running this code) from ComputerNameBad
> (which under OS X changed the host name from ComputerNameBad.local) to
> ComputerNameGood (host name of ComputerNameGood.local). I then end up with
> something like this in .Xauthority:
>
> $ xauth list
> > ComputerNameGood.local/unix:0  MIT-MAGIC-COOKIE-1
> > bbff4096504ef19a7b76bb83de4bdb2c
> >
>
> Then I fired up XDarwin with:
>
> $ startx
> >
>
> and everything worked just fine.
>
> All of the above commands were done in the OS X terminal shell, I didn't
> need to run them in xterm.
>
> This was a good lesson to learn and I hope its helpful to others on the
> list here in the event they later need to change their ComputerNames. As
> much as we'd like to believe that we live in a static world, the fact
> remains that things change including names, since no one sys admin is
> perfect :-)
>
> Regards,
>
> TM
>
>
>
>
>
>
>
>
>
>  --
> > Paul Beard
> > contact info: www.paulbeard.org/paulbeard.vcf
> > pictures: http://www.flickr.com/photos/pdb206/
> > Are you trying to win an argument or solve a problem?
> >
> >
> >
> > _______________________________________________
> > macports-users mailing list
> > macports-users at lists.macosforge.org
> > http://lists.macosforge.org/mailman/listinfo/macports-users
> >
> >
> >
>
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