> But why is it necessary to change the perms of the devices ?? > This should be only a matter of groups. > > For example /dev/mixer should always belong to root:audio with perms > crw-rw----, and a user should be in the group audio. > So even ater login, the /dev entry has not been changed, but only the > users of the group audio could access /dev/mixer. > And when a user is created, it should automatically belong to a series > of standard groups like audio, etc.
If permissions are not changed, everybody able to log via ssh on my computer, and who belongs to audio, can launch mpg123 la_danse_des_canards.mp3 of course, they can also launch aumix to make that everybody in the house will hear this wonderful song..... i will not even talk about reading /dev/dsp with a microphone plugged in. The problem is the same for all devices ( in fact, only sound, floppy, various terminal and cd permissions are changed ). Once someone is logged and in a group ( or not in a group ) , you cannot change this. You need to log out and log in for changes to make effect ( as far as I know, I maybe wrong ) Mick
