latsetup - Local Area Transport (LAT) setup utility
Specifies that latsetup is run in noncurses and nonmenu-driven mode.
Use this option if the terminal you are using does not support curses.
Note that using the latsetup command with the -nocurses option provides
The latsetup command provides an interactive, menu-driven facility for
administrating LAT on your system. (For introductory information on LAT,
see the lat_intro(7) reference page.)
To use latsetup, LAT must be built into the running kernel, your system
must be at run level 3 or 4, and you must be logged in as superuser. For
more information, see the Network Administration: Connections manual.
Running multiple latsetup processes concurrently on the same machine
can cause erroneous information to be presented to the latsetup user
and can corrupt the /etc/inittab file.
You can use the latsetup utility to perform the following tasks:
+ Do initial LAT setup
+ Create LAT device special files
+ Add or delete getty entries to or from the /etc/inittab file
+ Execute init q
+ Start or stop the LAT driver
+ Enable or disable LAT automatic startup and shutdown
If LAT is not configured into the running kernel, latsetup only allows you
to remove the LAT entries from the /etc/inittab file.
If you enable LAT automatic startup and shutdown, the /sbin/init.d/lat
script starts LAT upon reaching run level 3 and stops LAT upon leaving run
To run latsetup, log in as superuser and enter the following command:
LAT is not supported over NetRAIN virtual interfaces or the adapters
that compose NetRAIN sets. The latsetup utility does not allow you to
configure LAT over these interfaces, and you should not attempt to do
In the device creation phase, you choose to create SVR4-style or BSD-style
devices. (For an explanation of the types of devices, see the Network
Administration: Connections manual.) You should use SVR4-style devices;
they allow a larger number of devices.
If you create SVR4 devices using latsetup, and an SVR4 device was mapped as
an application port and the device was removed, the port (or service)
information remains associated with the minor number corresponding to the
device that was removed. Therefore, when latsetup creates more devices, it
may create the device that was mapped as an application port (if the device
name is within the range of SVR4 devices being created). The latsetup
utility does not add a getty entry for the device in the /etc/inittab file.
This device is not counted as a newly created SVR4 device, because it is
already being used as an application port.
If you delete SVR4 devices using latsetup, and an SVR4 device was mapped as
an application port and has an associated getty entry in the inittab file,
if the device name is within the range of SVR4 devices being removed,
latsetup removes the associated getty entry in the /etc/inittab file. When
removing SVR4 devices, latsetup does not remove the device, because it is
mapped as an application port. This device is not counted as an SVR4 dev-
ice that has been removed.
The latsetup utility creates device names that directly correspond to
minor numbers (for example, SVR4 device /dev/lat/620 corresponds to
minor number 620).
After you run latsetup, you can customize your system's LAT environment by
modifying the following files:
Edit the /etc/inittab file to add any LAT entries. For example, you
can add an entry for the LAT/Telnet gateway. For more information
refer to the Network Administration: Connections manual and init-
If you delete entries in the /etc/inittab file and then run latsetup
to make other changes or deletions, latsetup might not be able to
Create and modify the /etc/latstartup.conf file to include latcp com-
mands to customize your LAT system. This file is read by the
/sbin/init.d/lat script, which executes the commands included in the
file. For example, you can change the LAT node name or add additional
If your system is a member of a cluster, you must create this file as
a Context-Dependent Symbolic Link (CDSL). See the System
Administration guide for more information.
For more information refer to the Network Administration: Connections
manual and latcp(8).
Specifies the BSD LAT terminal devices. (Where W is a number from 0 to
9 and X is an alphanumeric character from 0 to 9, a lowercase a to z,
or an uppercase A to Z.) LAT supports up to 620 BSD LAT terminal dev-
Specifies the SVR4 LAT device special files. (Where n is a number
starting at 620 and having no upper limit.)
Specifies the LAT control device.
Specifies the LAT startup and shutdown script.
Specifies LAT customization commands. If your system is a member of a
cluster, you must create this file as a Context-Dependent Symbolic Link
(CDSL). See the System Administration guide for more information.
Sets up the system database to automatically push the ldterm STREAMS
module on top of the LAT STREAMS driver each time a LAT tty is opened.
Controls the initialization process.
Specifies the system configuration file.
Commands: llogin(1), init(8), latcp(8), MAKEDEV(8), strsetup(8)
Introduction: lat_intro(7), lat_manual_setup(7)
Network Administration: Connections