1

I've been given a set of entries to apply to /etc/securetty, what does each of them mean?

console
tty1cd /
tty2
tty3
tty4
tty5
tty6
ttyS0
ttyS1

I'm especially interested in the "tty1cd /" entry. I can't find anything about it online, and nobody here seems to know why it's there...

  • 3
    I strongly suspect it's the result of someone typing cd /, intending to talk to a shell, but accidentally typing it into an edit window instead. – MadHatter May 19 '14 at 9:54
  • I guess it could well be. I've seen some mentions of "ttycd" on my question to find the answer, leading me to think that "ttycd /" might have been a legitimate entry. – forquare May 19 '14 at 9:58
  • 1
    Why don't you ask whoever gave you the list to confirm that it's correct as the line you cite seems incorrect. – user591 May 19 '14 at 10:03
  • That would be nice - but the people who compiled the list have moved on. All anyone seems to know is that this is the 'approved list'. – forquare May 19 '14 at 10:04
  • 1
    looks like you're going to have to go through the approval process again then – user591 May 19 '14 at 10:05
6

tty1cd / is definitely a typo of tty1 and cd /, so I would replace it with just tty1.

Other than that, your /etc/securetty seems fine.

Update This file defines terminals on (from) which root can login. The names in it map to /dev/<name> virtual terminals. Reasonable system should have the appropriate man page securetty(5) (accessible vie e.g. man securetty) where you'll find more information.

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