Guralp Systems CMG-DCM build <10,000 User Manual
Page 22
CMG-EAM (Platinum Firmware)
The first time you use SSH to connect to a host, you will be asked to
verify the “host key”. This can be ignored the first time but, if you are
ever asked this again, it means that either the host key of the CMG-
EAM has changed – perhaps because of a firmware upgrade – or there
is a network address conflict or, worse, a security problem on your
network.
user@mypc:~$ ssh root@192.168.0.1
The authenticity of host '192.168.0.1 (192.168.0.1)' can't be established.
RSA key fingerprint is 62:a6:70:29:d4:1a:db:5a:75:6e:96:13:54:f5:a9:d9.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.0.1' (RSA) to the list of known hosts.
[email protected]'s password:
eam999 ~ #
You will be prompted for a password; the default password is rootme.
Note that no characters will be echoed to the screen as you type the
password.
Once connected, you will be presented with a shell prompt which is
ready to accept commands.
When you are finished with your SSH session and want to disconnect,
enter “exit” at the command line, or type a
are a number of escape sequences for controlling the session, all of
which begin with a tilde ('~') so, if you need to send a tilde character
to the CMG-EAM, type two tildes consecutively. For more
information, see the section on “Escape Characters” in the SSH manual
page at
2.2.4.2 SSH connections using PuTTY
To use PuTTY, you must know or discover the IP address of the unit,
as described in the previous section. Once you have the IP address,
start PuTTY by choosing it from the “Start” menu or double-clicking
on its icon. You will be presented with the following screen:
22
Issue C
Note: If you plan to use ssh regularly to communicate with a
CMG-EAM, you can configure the system to bypass the
password prompt from a list of pre-authorised computer/user
combinations. This involves generating a unique key-pair (for
the user and PC which will access the CMG-EAM) and then
copying the public half of the key-pair to the CMG-EAM. This is
documented at http://suso.org/docs/shell/ssh.sdf