Re: MATE 1.8 has now fully arrived in Debian
On Thu, 2014-06-26 at 13:53 +0100, Simon McVittie wrote:
> On 26/06/14 13:33, Svante Signell wrote:
> > Of course with the additional check that the students are logged in to
> > that box locally, did I forget to mention that?
> ... or
> something involving utmp/wtmp/other traditions.
> utmp(5) says "many system programs (foolishly) depend on its integrity"
> so be very careful with security implications if you go that way. I
> wouldn't want anything relying on utmp for its security on my systems.
Maybe I'm naive but doesn't utmp(5) solve this problem?
who(1) tells me in clear-text if I'm logged in locally or remote:
local remote or local
usr tty1 2014-06-26 16:16
usr :0 2014-06-24 19:33 (:0)
usr pts/1 2014-06-25 15:19 (:0.0)
susr pts/8 2014-06-26 16:24 (ip-address/hostname)
console, tty ttyp
login console 2014-06-25 16:54
login tty1 2014-06-25 16:54 (tty1 to tty6)
usr ttyp0 2014-06-25 19:33 (ip-address/hostname)
Here a special user named login is used for not yet logged in
For kFreeBSD I dunno yet, have to check.
Are there serious security problems with ancient utmp that cannot be