# phpman > info > securetty

[SECURETTY(5)](https://www.chedong.com/phpMan.php/man/SECURETTY/5/markdown)               Linux Programmer's Manual              [SECURETTY(5)](https://www.chedong.com/phpMan.php/man/SECURETTY/5/markdown)

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

DESCRIPTION
       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)](https://www.chedong.com/phpMan.php/man/login/1/markdown) to restrict the terminals on
       which root is allowed to login.   See  [login.defs(5)](https://www.chedong.com/phpMan.php/man/login.defs/5/markdown)  if  you  use  the
       shadow suite.

       On  PAM  enabled  systems,  it  is used for the same purpose by pam_se-
       [curetty(8)](https://www.chedong.com/phpMan.php/man/curetty/8/markdown) to restrict the terminals on which empty passwords  are  ac-
       cepted.

FILES
       /etc/securetty

SEE ALSO
       [login(1)](https://www.chedong.com/phpMan.php/man/login/1/markdown), [login.defs(5)](https://www.chedong.com/phpMan.php/man/login.defs/5/markdown), [pam_securetty(8)](https://www.chedong.com/phpMan.php/man/pamsecuretty/8/markdown)

COLOPHON
       This  page  is  part of release 5.10 of the Linux man-pages project.  A
       description of the project, information about reporting bugs,  and  the
       latest     version     of     this    page,    can    be    found    at
       <https://www.kernel.org/doc/man-pages/>.

Linux                             2020-06-09                      [SECURETTY(5)](https://www.chedong.com/phpMan.php/man/SECURETTY/5/markdown)