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Chapter 15
Advanced Configuration
ADVANCED CONFIGURATION
Introduction
Black Box
console server
s run the embedded Linux operating system. So
Administrator
class users can configure the
console server
and monitor and manage attached serial console and host devices from the command line using Linux
commands and the
config
utility as described in
Chapter 14
.
The Linux kernel in the
console server
also supports GNU
bash
shell script enabling the
Administrator
to run custom
scripts. This chapter presents a number of useful scripts and scripting tools including:
-
delete-‐node
which is a general script for deleting users, groups, hosts, UPSes etc.
-
ping-‐detect
which will run specified commands when a specific host stops responding to ping requests.
This chapter then details how to perform advanced and custom management tasks using Black Box commands, Linux
commands, and the open source tools embedded in the
console server
:
-
portmanager
serial port management
-
raw data access to the ports and modems
-
iptables
modifications and updating IP filtering rules
-
modifying SNMP with
net-‐snmpd
-
public key authenticated SSH communications
-
SSL, configuring HTTPS and issuing certificates
-
using
pmpower
for
NUT
and
PowerMan
power device management
-
using
IPMItools
-
CDK custom development kit
15.1 Custom Scripting
The
console server
supports GNU
bash
shell commands (refer to
Appendix A
) enabling the
Administrator
to run custom
scripts.
15.1.1 Custom script to run when booting
The
/etc/config/rc.local
script runs whenever the system boots. By default, this script file is empty. You can add any
commands to this file if you want them to run at boot time (for example, if you wanted to display
hello world
:)
#!/bin/sh
echo "Hello World!"
If this script has been copied from a Windows machine, you may need to run the following command on the script
before
bash
can run it successfully:
# dos2unix /etc/config/rc.local
