FreeBSD 6.3-PRERELEASE unable to change file permission
Anjang Aki
mailman.msc at gmail.com
Mon Dec 3 09:50:48 PST 2007
i just got the answer..
i need to run init 1 and do chflags -R 0 /usr/bin/rlogin and then i
can change the file permission using chmod
thanks for your advice
On 12/4/07, Michael Proto <mike at jellydonut.org> wrote:
> Anjang Aki wrote:
> > hi!.. i'm not able to change file permission to disable rlogin and
> > login on my box even as root
> >
> > # ls -lo /usr/bin/login /usr/bin/rlogin
> > -r-sr-xr-x 1 root wheel schg 19996 Dec 1 13:04 /usr/bin/login
> > -r-sr-xr-x 1 root wheel schg 10140 Dec 1 13:04 /usr/bin/rlogin
> >
> > # chflags -R nouchg login rlogin
> > chflags: /usr/bin/login: Operation not permitted
> > chflags: /usr/bin/rlogin: Operation not permitted
> >
> > # chmod a=rx /usr/bin/login /usr/bin/rlogin
> > chmod: /usr/bin/login: Operation not permitted
> > chmod: /usr/bin/rlogin: Operation not permitted
> >
> > it makes me uneasy as my users can still use login and rlogin to gain
> > access to the box
> >
> > my system:
> > # uname -a
> > FreeBSD k3.college.edu 6.3-PRERELEASE FreeBSD 6.3-PRERELEASE #1: Sun
> > Dec 2 18:51:02 MYT 2007 root at college.edu:/usr/obj/usr/src/sys/EDU
> > i386
> >
> > thanks for advice
> >
>
> It looks like these files have the system-immutable flags set (schg),
> not the user-immutable (uchg). What happens if you do "chflags noschg
> /usr/bin/login /usr/bin/rlogin"?
>
>
> -Proto
>
--
-- Anjang Aki --
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