Tripp Lite B093-004-2E4U-V Owner's Manual

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14. Conﬁguration from the Command Line

For those who prefer to conﬁgure their console server at the Linux command line level (rather than use a browser and the

management console), this chapter describes using command line access and the conﬁg tool to manage the console server

and conﬁgure the ports.

When displaying a command, this chapter uses single quotes (‘’) for user deﬁned values (e.g., descriptions and names).

Element values without single quotes must be typed exactly as shown.

14.1 Accessing Conﬁg from the Command Line

The console server runs a standard Linux kernel and embeds a suite of open source applications. If you do not want to use a

browser and the management console tools, you can conﬁgure the console server and manage connected devices from the

command line using standard Linux and Busybox commands as well as applications like ifconﬁg, gettyd, stty, powerman,

NUT, etc. However, without careful management, these settings may not withstand a power-cycle-reset or reconﬁguration.

Tripp Lite provides a number of custom command line utilities and scripts that easily conﬁgure the console server and ensure

changes are stored in the console server’s ﬂash memory.

The conﬁg utility allows manipulation of the system conﬁguration from the command line. With conﬁg, a new conﬁguration can

be activated by running the relevant conﬁgurator, which performs the action necessary to make the conﬁguration changes live.

To access conﬁg from the command line:

• Power up the console server and connect the “terminal” device:

o If connecting using the serial line, plug a serial cable between the console server’s local DB-9 console port and the

terminal device. Conﬁgure the serial connection of the terminal device you are using to 115200bps, 8 data bits, no parity

and one stop bit.

o If you are connecting over LAN, you will need to interconnect the Ethernet ports and direct your terminal emulator program

to the IP address of the console server (192.168.0.1 by default).

• Log on to the console server by pressing return a few times. The console server will request a username and password. Enter

the username root and the password default. The command line prompt should appear as a hash (#).

This section is not intended to teach you Linux. In following these instructions, we assume you already

have a certain level of understanding before executing Linux kernel level commands.

The conﬁg tool

Syntax

conﬁg [ -ahv ] [ -d id ] [ -g id ] [ -p path ] [ -r conﬁgurator ] [ -s id=value ] [ -P id ]

Description

The conﬁg tool is designed to perform multiple actions from one command so options can be chained together.

The conﬁg tool allows manipulation and querying of the system conﬁguration from the command line. Using conﬁg, the

new conﬁguration can be activated by running the relevant conﬁgurator, which performs the necessary action to apply the

conﬁguration changes in real-time.

The custom user conﬁguration is saved in the /etc/conﬁg/conﬁg.xml ﬁle. This ﬁle is transparently accessed and edited when

conﬁguring the device using the management console browser GUI. Only the user ‘root’ can conﬁgure from the shell.

By default, the conﬁg elements are separated by a ‘.’ character. The root of the conﬁg tree is <conﬁg>. To address a speciﬁc

element, place a ‘.’ between each node/branch. To access and display the description of user1, type:

# conﬁg -g conﬁg.users.user1.description

The root node of the conﬁg tree is <conﬁg>. To display the entire conﬁg tree, type:

# conﬁg -g conﬁg

To display the help text for the conﬁg command, type:

# conﬁg -h

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Tripp Lite B093-004-2E4U-V 4-Port Console Server with 4G LTE Cellular Gateway, Dual GbE NIC, 4Gb Flash and Dual SIM