Allied Telesis AT-S63 - Manual (Page 820)

Chapter 35: Secure Shell (SSH)
820 Section VIII: Management Security
Configuring SSH
This section describes how to configure the switch as an SSH server. For
a description of all the steps required to configure an SSH server, see
“General Steps for Configuring SSH” on page 819.
Before you begin this procedure, you need to configure a host and server
keys for SSH. See Chapter 33, “Encryption Keys” on page 759. The
minimum bit size of the server key is 512 bits. The recommended bit size
for a server key is 768 bits. The recommended size for the host key is
1024 bits. In addition, the bit size of the host and server keys must differ
by 128 bits.
While you are configuring the SSH feature, you must disable the SSH
server. When you have completed your configuration changes, enable the
SSH server to permit SSH client connections.
Note
Allied Telesyn recommends disabling the Telnet server before you
enable SSH. Otherwise, the security functions provided by SSH are
lost. See “Configuring the Telnet Server” on page 73.
To configure the SSH protocol, perform the following procedure:
1. From the Main Menu, type 7 to select Security and Services.
The Security and Services menu is shown in Figure 87 on page 291.
2. From the Security and Services menu, type 8 to select Secure Shell
(SSH).
The Secure Shell (SSH) menu is shown in Figure 282.
Figure 282. Secure Shell (SSH) Menu
Allied Telesyn Ethernet Switch AT-94xx - AT-S63
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Secure Shell (SSH)
1 - SSH Server Status ....... Disabled
2 - Host Key ID.............. <Not Defined>
3 - Server Key ID ........... <Not Defined>
4 - Server Key Expiry Time .. 0 hours
5 - Login Timeout ........... 180 seconds
6 - Show Server Information
R - Return to Previous Menu
Enter your selection?