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Full Discussion: Finding how done IT
Top Forums UNIX for Dummies Questions & Answers Finding how done IT Post 26929 by Neo on Monday 26th of August 2002 10:12:43 AM
Old 08-26-2002
In the future you might want to change the way you are managing user accounts. There are a number of ways to do this:

(1) The easiest (not very secure, but helps) is to simply not allow users to login directly as root from remote terminals. They must first login as 'themselves' and then 'su' to root.

(2) If you want more control, you could enable access control lists (ACLs) on your system and then only allow users to login as 'themselves' and then give them root / superuser rights/permissions for commands they need to do their work. This also turns on accounting so you can track exactly what they do.

There are other ways to help insure you can audit what others are doing. Very few, if any, experienced system administrators on a critical multi-user system allow direct remote superuser login.
 

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LEARN ABOUT PHP

securetty

SECURETTY(5)						     Linux Programmer's Manual						      SECURETTY(5)

NAME

       securetty - file which lists terminals from which root can log in

DESCRIPTION

       The file /etc/securetty contains the names of terminals (one per line, without leading /dev/) which are considered secure for the transmis-
       sion 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.

FILES

       /etc/securetty

SEE ALSO

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

COLOPHON

       This page is part of release 4.15 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								    2015-03-29							      SECURETTY(5)
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