Black Box 1102 Sleep, Smbmnt, Smbmount, Smbumount, Snmpd, Snmptrap, Sredird, Ssh-keygen, Sshd

Appendix A: Linux Commands and Source Code

sleep *	Delay for a specified amount of time
smbmnt	Helper utility for mounting SMB file systems
smbmount	Mount an SMBFS file system
smbumount	SMBFS umount for normal users
snmpd	SNMP daemon
snmptrap	Sends an SNMP notification to a manager
sredird	RFC 2217 compliant serial port redirector
ssh	OpenSSH SSH client (remote login program)
ssh-keygen	Authentication key generation, management, and conversion
sshd	OpenSSH SSH daemon
sslwrap	Program that allows plain services to be accessed via SSL
stty	Change and print terminal line settings
stunnel	Universal SSL tunnel
sync *	Flush file system buffers
sysctl	Configure kernel parameters at runtime
syslogd	System logging utility
tar *	The tar archiving utility
tc	Show traffic control settings
tcpdump	Dump traffic on a network
telnetd	Telnet protocol server
tftp	Client to transfer a file from/to tftp server
tftpd	Trivial file Transfer Protocol (tftp) server
tip	Simple terminal emulator/cu program for connecting to modems and serial devices
top	Provide a view of process activity in real time
touch *	Change file timestamps
traceroute	Print the route packets take to network host
traceroute6	Traceroute for IPv6
true *	Returns an exit code of TRUE (0)
umount *	Unmount file systems
uname *	Print system information
usleep *	Delay for a specified amount of time
vconfig *	Create and remove virtual ethernet devices
vi *	Busybox clone of the VI text editor
w	Show who is logged on and what they are doing
zcat *	Identical to gunzip -c

Commands above which are appended with '*' come from BusyBox (the Swiss Army Knife of embedded Linux)

%''"""&!$#& '"'
!$
#& . Others are generic Linux commands and most commands the -hor --helpargument

to provide a terse runtime description of their behavior. More details on the generic Linux commands can found online at

%''& &'  '  ('" &  and  %''"""&&''!#(  '  (( (  & 

An updated list of the commands may found using ls command to view all the commands actually available in the /bin directory in your console server.

There were a number of Black Box tools listed above that make it simple to configure the console server and make sure the changes are stored in the console server's flash memory, etc. These commands are covered in the previous chapters and include:

config which allows manipulation and querying 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.

portmanager which provides a buffered interface to each serial port. It is supported by the pmchat and pmshell commands which ensure all serial port access is directed via the portmanager.

pmpower is a configurable tool for manipulating remote power devices that are serially or network connected to the console server.

SDT Connector is a java client applet that provides point-and-click SSH tunneled connections to the console server and Managed Devices.

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