NAME
ttys — terminal control database file for trusted systems
DESCRIPTION
The system supports a single terminal control database containing entries
for each local terminal that can log into the system. Authentication
programs use information contained in the terminal control database to
determine if login from the terminal is permitted. Additional fields are
maintained for informational purposes.
The format of the terminal control database file is identical to other system
authentication database files. For more information on the file format, see
authcap(4).
The file consists of keyword field identifiers and values for
those fields. The keyword identifiers supported and their use include:
- t_devname
This field defines the terminal device name for the entry. The terminal device
is expected to be contained in the
/dev
directory, therefore this
prefix should not be specified. If the terminal entry describes the
/dev/tty1
device, the
t_devname
field should contain
tty1.
- t_uid
This field records the user id of the last user to successfully login using
the terminal device.
- t_logtime
This
time_t
field records the last successful login time to the terminal
device.
- t_unsuctime
This
time_t
field records the last unsuccessful login time to the terminal
device.
- t_failures
This field records the number of consecutive unsuccessful login attempts to
the terminal device.
- t_maxtries
This field specifies the maximum number of consecutive unsuccessful login
attempts permitted using the terminal before the terminal is locked. Once the
terminal is locked, it must be unlocked by an authorized administrator.
- t_login_timeout
This field specifies the login timeout value (sec).
- t_logdelay
This field specifies the delay between login tries (sec).
- t_lock
This flag field indicates whether the terminal device has been administratively
locked or not. This field is manipulated by authorized administrators only.
EXAMPLES
The following is an example of a terminal control database entry:
console:t_devname=console:\
:t_uid=reese:t_logtime#675430072:\
:t_unsuctime#673610809:\
:t_maxtries#777:\
:chkent:
This entry is for the system console device,
/dev/console.
The most recent successful login session was for the user
reese.
The entry records the system time for the current successful login
and the time of the most recent unsuccessful login attempt.
WARNINGS
Remote terminals (ptys) should not be added to the
devassign
or
ttys
databases. Device name formats treated as ptys by login are:
- ptym/*
- pts/*
- pty/*
- pty[x][y]
where
x
is a letter, and
y
is a hex number
- tty[x][y]
where
x
is a letter, and
y
is a hex number
- telnet/*
HP-UX 11i Version 3 is the last release to support
trusted systems functionality.
AUTHOR
ttys
was developed by HP.
FILES
- /tcb/files/ttys
Terminal control database file
Printable version
