login makes /dev/ttySx inaccessible to intended owners
Gert Doering (gert@greenie.muc.de)
Wed, 24 Jan 1996 09:12:32 +0100
Hi,
Pilch wrote:
> Suppose user ebruehl of group ebsh logged in to my system by modem.
> After logging out he will leave the modem device owner status changed:
>
> <(dialog>
>
> $ ls -l /dev/{modem,ttyS1}
> lrwxrwxrwx 1 uucp uucp 5 Aug 20 11:58 /dev/modem -> ttyS1
> crw-rw---- 1 ebruehl ebsh 4, 65 Jan 23 12:38 /dev/ttyS1
> crw-rw---- 1 ebruehl ebsh 4, 65 Jan 23 12:38 /dev/ttyS1
Just read the manual. On Linux, *DO* *NOT* *USE* symlinks for the modem
devices. Use hard links, or use the "real" device directly.
This is a well-known problem, and it *is* explained in the manual.
gert
--
//www.muc.de/~gert
Gert Doering - Munich, Germany gert@greenie.muc.de
fax: +49-89-3545980 <---new!!! gert.doering@physik.tu-muenchen.de