Manpages - securetty.5

securetty - list of terminals on which root is allowed to login

The file /etc/securetty contains the names of terminals (one per line, without leading dev) which are considered secure for the transmission of certain authentication tokens.

It is used by (some versions of) *login*(1) to restrict the terminals on which root is allowed to login. See *login.defs*(5) if you use the shadow suite.

On PAM enabled systems, it is used for the same purpose by *pam_securetty*(8) to restrict the terminals on which empty passwords are accepted.

/etc/securetty

*login*(1), *login.defs*(5), *pam_securetty*(8)

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