User's Manual 88 Document #: LTRT-27055
Mediant 1000B Gateway & E-SBC
occurs automatically and no password is required.
To configure RSA public keys for Linux (using OpenSSH 4.3):
1. Run the following command to create a new key in the admin.key file and to save the
public portion to the admin.key.pub file:
ssh-keygen -f admin.key -N "" -b 1024
2. Open the admin.key.pub file, and then copy the encoded string from "ssh-rsa" to the
white space.
3. You can use the public key per management user or for all users:
• Per user: Open the Local Users table (see Configuring Management User
Accounts on page 74), and then for the required user, paste the public key that
you copied in Step 2 into the 'SSH Public Key' field.
• For all users: Open the CLI Settings page, and then paste the public key that you
copied in Step 2 into the 'Admin Key' field.
4. Connect to the device with SSH, using the following command (where xx.xx.xx.xx is
the device's IP address):
ssh -i admin.key xx.xx.xx.xx
RSA-key negotiation occurs automatically and no password is required.
7.2 Configuring Maximum Telnet/SSH Sessions
You can configure the maximum number of concurrent Telnet and SSH sessions (up to
five) permitted on the device.
Note: Before changing the setting, make sure that not more than the number of
sessions that you want to configure are currently active; otherwise, the new setting
will not take effect.
To configure the maximum number of concurrent Telnet and SSH sessions:
1. Open the CLI Settings page (Setup menu > Administration tab > Web & CLI folder >
CLI Settings).
2. For Telnet: Under the Telnet group, in the 'Maximum Telnet Sessions' field, enter the
maximum number of concurrent sessions.
3. For SSH: Under the SSH group, in the 'Maximum SSH Sessions' field, enter the
maximum number of concurrent sessions.
4. Click Apply.
7.3 Establishing a CLI Session
You can access the device's CLI using any of the following methods:
RS-232: The device can be accessed through its RS-232 serial port, by connecting a
VT100 terminal to it or using a terminal emulation program (e.g., HyperTerminal) with
a PC. For connecting to the CLI through RS-232, see CLI on page
43.
Secure SHell (SSH): The device can be accessed through its Ethernet interface by
the SSH protocol using SSH client software. A popular and freeware SSH client
software is Putty, which can be downloaded from
http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html
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