A-14
File Transfers
Downloading Switch Software
Authentication
Switch memory allows up to ten public keys. This means the authentication
and encryption keys you use for your third-party client SCP/SFTP software
can differ from the keys you use for the SSH session, even though both SCP
and SFTP use a secure SSH tunnel.
N o t e
SSH authentication is mutually exclusive with RADIUS servers.
Some clients such as PSCP (PuTTY SCP) automatically compare switch host
keys for you. Other clients require you to manually copy and paste keys to the
$HOME/.ssh/known_hosts
file. Whatever SCP/SFTP software tool you use, after
installing the client software you must verify that the switch host keys are
available to the client.
Because the third-party software utilities you may use for SCP/SFTP vary, you
should refer to the documentation provided with the utility you select before
performing this process.
SCP/SFTP Operating Notes
■
When an SFTP client connects, the switch provides a file system display-
ing all of its available files and folders. No file or directory creation is
permitted by the user. Files may only be uploaded or downloaded, accord-
ing to the permissions mask. All of the necessary files the switch will need
are already in place on the switch. You do not need to (nor can you create)
new files.
■
The switch supports one SFTP session or one SCP session at a time.
■
All files have read-write permission. Several SFTP commands, such as
create
or
remove
, are not allowed and return an error message. The
switch displays the following files:
/
+---cfg
| running-config
| startup-config
+---log
| crash-data
| crash-data-a
| crash-data-b
| crash-data-c
| crash-data-d
8212zl only
| crash-data-e
“
“
| crash-data-f
“
“
| crash-data-g
8212zl only
| crash-data-h
“
“
3500-5400-6200-8200-MCG-Jan08-K_13_01.book Page 14 Monday, January 28, 2008 10:04 AM