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

Normally the Linux Console is accessed via the ethernet port of the AMC-IP, using the ”Secure Shell” (SSH) protocol.

• A SSH client is required. The free SSH client “Putty” is recommended. Download and install PuTTY from here: PuTTY
• In AlphaWeb, System Configuration -> Filters, the SSH port (port 22) must be enabled
• Start PuTTY, and enter the IP address of the AlphaCom, and 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

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

• 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)

tst -s /tmp/sipd_trace Start SIP trace (for debugging with SIP Trunk issues) Ping <IP-address> Checks communication against external device ps -A List running processes netstat –a Displays all active connections and the TCP and UDP ports on which the AMC-IP is listening 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.