Re: usb permissions + export display
On 12 May 2002, Antoine Jacoutot wrote:
> 1. When I plug my didgital usb camera, I can only access it under root,
> not as a regular user. I know this is because /proc/bus/usb/000/...
> entries are accessible only by root, and I can't change it since as soon
> as I re-plug my camera, the permissions are back only for root.
I had the same problem and decided to install the USB perimssion daemon by
myself, because I couldn't find any Debian package to deal with that
problem. Take a look at
http://www.xena.uklinux.net/Linux/usb_perms.html
The init script is made for SuSE I think, so you must create one by
yourself.
> 2. I want to export my display on anothre computer. On the server
> running X, I issued the following command: "xhost +", and on the client,
> when I launch an application, like "xterm -display server:0", I get this
> error message: "xterl Xt error: Can't open display: server:0".
I seriously recommend to use ssh instead of unencrypted X11 connections.
However, It seems that your X server has been started with the "-nolisten
tcp" option for security reasons. Are you using "gdm"? Look at
/etc/gdm/gdm.conf. Using xdm? Try /etc/X11/xdm/Xservers. Change the line
that starts the X server you are dealing with (probably :0).
Please use ssh instead. Try
$ ssh -x client
and look at
$ echo $DISPLAY
It should look like "localhost:10" or so. If not, enable X11 forwarding in
/etc/ssh/sshd_config at the X11 clients side. When done, just type
"xterm".
Hope this will help you. If not, request more details.
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