Linux Console

The Linux Console

AlphaCom XE runs a Linux distribution from Timesys, kernel ver. 2.6. Linux uses a Command Line Interface (CLI). This CLI can be accessed via the so-called Linux Console.

In the field the Linux Console can be used for:

• Collect information for debugging purposes, e.g. SIP trace
• Flash Image update – Recovery of file system
• To start the TST console: Gives direct access to the AMC-IP memory (NVRAM)

Accessing the Linux Console

In PuTTY enter the required connection parameters

The Linux Console is accessed via the ethernet port of the AMC-IP.

• A SSH/Telnet client is required. The free SSH/Telnet client “Putty” is recommended. Download and install PuTTY from here: PuTTY
• In AlphaWeb, System Configuration -> Filters, enable the SSH port (port 22).
• Start PuTTY, and enter the IP address of the AlphaCom, select protocol SSH and port number 22. Press Open.
• You are now prompted for username and password:
  • Username: alpha
  • Password: com
• You are now logged in to the Linux Console

Note: AMC software version 10 is using the Telnet protocol on port 23, not the SSH protocol on port 22. When accessing an AMC-IP running software 10 you must enable Telnet (port 22) in Filters in AlphaWeb, and select Telnet protocol and port 23 in PuTTY.

Successful login to the Linux Console

The Linux Console can be accessed on two ways:

• Via the ethernet port using ”telnet”
• Via serial port 1

Linux Console - Telnet

Start the Windows command line

Type telnet <AMC IP-adress>

Username: alpha
Password: com
The Telnet port (23) is by default disabled in the firewall

Linux Console – Serial Port

Use a terminal program (like HyperTerminal) connected to serial port 1<br\> Communication parameters:

• 115.200 baud
• No parity
• 8 databits
• 1 stop bit

Turning AMC dipswitch S601-1 ON disables AlphaPro over IP

Some useful commands

• tst -s /tmp/sipd_trace (Start SIP trace - for debugging when SIP Trunk issues)
• ping <IP-address> (Checks communication against external device)<br\>
• ps -A (List running processes)
• ls -l (list files)
• /sbin/ifconfig (list IP adresses etc of ethernet ports)
• netstat -a (list network connections)
• Top (Displays a listing of the most CPU-intensive tasks on the system)

The Linux console runs the "bash" shell. Documentation for Linux commands: die.net/doc/linux

The TST console debug function of the AMCD application can accessed from linux console. Tracing of SIP is also possible.