X11 Server (Quartz 1.20.4) not having security extensions

[Uli Wienands]

Try ssh -Y ...

Uli

On 5/7/20 2:43 AM, Christoph Kukulies wrote:
> I found that
>
> ssh -X user at remote_host
>
>
> doesn’t do X-forwarding, and that is - I’m told - because the X11 
> server (XQuartz 1.20.4 (xorg-server 1.20.4) doesn’t have security 
> extensions.
>
>
> $ xdpyinfo -queryExtensions
>
> name of display: 
>    /private/tmp/com.apple.launchd.NM3gWpA6AH/org.macports:0
> version number:    11.0
> vendor string:    The X.Org <http://X.Org> Foundation
> vendor release number:    12004000
> X.Org <http://X.Org> version: 1.20.4
> maximum request size:  16777212 bytes
> motion buffer size:  256
> bitmap unit, bit order, padding:    32, LSBFirst, 32
> image byte order:    LSBFirst
> number of supported pixmap formats:    7
> supported pixmap formats:
>    depth 1, bits_per_pixel 1, scanline_pad 32
>    depth 4, bits_per_pixel 8, scanline_pad 32
>    depth 8, bits_per_pixel 8, scanline_pad 32
>    depth 15, bits_per_pixel 16, scanline_pad 32
>    depth 16, bits_per_pixel 16, scanline_pad 32
>    depth 24, bits_per_pixel 32, scanline_pad 32
>    depth 32, bits_per_pixel 32, scanline_pad 32
> keycode range:    minimum 8, maximum 255
> focus:  None
> number of extensions:    21
>    Apple-DRI  (opcode: 128, base event: 64, base error: 128)
>    Apple-WM  (opcode: 129, base event: 68, base error: 130)
>    BIG-REQUESTS  (opcode: 134)
>    DAMAGE  (opcode: 142, base event: 97, base error: 154)
>    DOUBLE-BUFFER  (opcode: 144, base error: 155)
>    GLX  (opcode: 148, base event: 101, base error: 159)
>    Generic Event Extension  (opcode: 130)
>    MIT-SCREEN-SAVER  (opcode: 143, base event: 98)
>    MIT-SHM  (opcode: 132, base event: 72, base error: 132)
>    Present  (opcode: 145)
>    RANDR  (opcode: 141, base event: 95, base error: 149)
>    RENDER  (opcode: 140, base error: 144)
>    SHAPE  (opcode: 131, base event: 71)
>    SYNC  (opcode: 135, base event: 90, base error: 138)
>    X-Resource  (opcode: 146)
>    XC-MISC  (opcode: 137)
>    XFIXES  (opcode: 139, base event: 93, base error: 142)
>    XINERAMA  (opcode: 138)
>    XInputExtension  (opcode: 133, base event: 73, base error: 133)
>    XKEYBOARD  (opcode: 136, base event: 92, base error: 141)
>    XVideo  (opcode: 147, base event: 99, base error: 156)
> default screen number:    0
> number of screens:    1
>
> screen #0:
>  dimensions:    1680x1028 pixels (445x272 millimeters)
>  resolution:    96x96 dots per inch
>  depths (7):    24, 1, 4, 8, 15, 16, 32
>  root window id:    0x111
>  depth of root window:    24 planes
>  number of colormaps:    minimum 1, maximum 1
>  default colormap:    0x21
>  default number of colormap cells:    256
>  preallocated pixels:    black 0, white 16777215
>  options:    backing-store NO, save-unders NO
>  largest cursor:    32x32
>  current input event mask:    0x1a0000
>    StructureNotifyMask      SubstructureNotifyMask 
>   SubstructureRedirectMask
>  number of visuals:    80
>  default visual id:  0x22
>  visual:
>    visual id:    0x22
>    class:    TrueColor
>    depth:    24 planes
>    available colormap entries:    256 per subfield
>    red, green, blue masks:    0xff0000, 0xff00, 0xff
>    significant bits in color specification:    8 bits
>
>
>
> Is there a way to make the server having these extensions? Or are 
> there reasons standing against this?
>
>
> —
> Christoph 
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