Difference between revisions of "Linux Console"

Revision as of 09:00, 10 May 2012

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, 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

Note: AMC software version 10 is using the Telnet protocol on port 23, not the SSH protocol on port 22. The AlphaWeb filter settings and the PuTTY connection parameters must be set accordingly when accessing an AMC-IP running software 10.

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.

@@ Line 11: / Line 11: @@
 [[File:Putty Linux.PNG|thumb|right|400px|In PuTTY enter the required connection parameters]]
 The Linux Console is accessed via the ethernet port of the AMC-IP.
-* AMC software version 11 is using the Secure Shell SSH protocol (port 22)
-* AMC software version 10 is using the Telnet protocol (port 23)
 *A SSH/Telnet client is required. The free SSH/Telnet client “Putty” is recommended. Download and install PuTTY from here: [http://www.chiark.greenend.org.uk/~sgtatham/putty/ PuTTY]
-* In AlphaWeb, '''System Configuration''' -> '''Filters''', the SSH port (port 22) must be enabled. (AMC 10: Enable Telnet port 23)
+* 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:
@@ Line 20: / Line 18: @@
 ** 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. The AlphaWeb filter settings and the PuTTY connection parameters must be set accordingly when accessing an AMC-IP running software 10.
 [[File:LinuxConsoleLogIn.PNG|thumb|400px|right|Successful login to the Linux Console]]