ttys0 changed permissions itself

[Ignacio Gómez]

The operating system i'm using is redhat 7 .3 with kernel 2.4.18

i have a post configured with wvdial but after the connection and finish the
communication i try a new dial and it comes out a message that say " "device
is Busy" it happens with a normal user

I turned to root user i try again the dial and it works .

I go to see the device in the /dev and i realized that permissions changed
from 666 to 644, IF Ii turn the post off the original permissions come back.


why? what could have happened?



thanks so much for your help

Ignacio Gómez
Colombia