Re: How to disable XFree86 and wdm listening ports

From: Jason Stone (freebsd-security_at_dfmm.org)
Date: 10/28/03

  • Next message: Nigel Houghton: "Re: How to disable XFree86 and wdm listening ports" 
    Date: Tue, 28 Oct 2003 08:59:28 -0800 (PST)
To: Wolfgang Kess <bsdlist@kess.ch>

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    > > If you think that you might someday invoke X with a different display
    > > manager, you might consider replacing /usr/X11R6/bin/X with a shell script
    > > that calls "X.real -nolisten tcp" - this would make all methods of
    > > starting X not use the tcp port. On the other hand, you'll have to
    > > remember to maintain it when you upgrade.
    >
    > A very nice recommendation.
    >
    > X is linked to Xwrapper-4
    > lrwxr-xr-x 1 root wheel - 10 Oct 22 18:18 X@ -> Xwrapper-4
    >
    > Please publish your shell script.

    Um, I'm not using such a thing, but I imagine it would be something like
    the following. Call it something like /usr/X11R6/bin/X-no-tcp and symlink
    /usr/X11R6/bin/X to it.

    #!/bin/sh

    if [ -x /usr/X11R6/bin/Xwrapper-4 ]
    then
            exec /usr/X11R6/bin/Xwrapper-4 -nolisten tcp $@
    elif [ -x /usr/X11R6/bin/XFree86 ]
    then
            exec /usr/X11R6/bin/XFree86 -nolisten tcp $@
    else
            echo "Couldn't find Xwrapper-4 or XFree86 - sorry" >&2
            exit 1
    fi

     -Jason

     --------------------------------------------------------------------------
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  • Next message: Nigel Houghton: "Re: How to disable XFree86 and wdm listening ports"