Lantronix SecureLinx SLK Series, User Manual, Page: 109 / 160

Using the OSD Interface to Configure the SLK
SecureLinx SLK Remote KVM User Guide 5-13
Security Settings
There are two OSD screens for configuring the SLK security.
Initial Security Screen
The first security screen handles functions like Stealth and Turtle as well as general
policy.
❖
Change overall security mode. Press the right arrow key to select between
relaxed , snooper , or public options . (See Figure 4-19 .)
❖
Admin password . The password for the master account (for which the user ID
can be only root or administrator ).
❖
Turtle mode . Select to disable (default) or set sensitivity to authentication
failure.
❖
Turtle reset timeout . Type the number of hours that the SLK locks out remote
access after Turtle mode has been triggered. Local reset is allowed.
❖
Reset Turtle protection now . Manual reset is allowed only at local console.
❖
Stealth mode . Select Enabled to conceal your presence on the net. Ignores
pings.
❖
Require encryption . The default is Optional. When set to Mandatory (on
SLK1 and SLK8, this option is Required ), all Web requests are rerouted to
HTTPS ports.
The SLK provides SSL encryption. For this feature to work, install in the SLK a
valid server certificate and key provided by a trusted source. The certificate and
key must be in PEM format and the name of the files should be
server-
cert.crt
and
server-cert.key
. To install the certificate and key, access
the flash file system through the web control interface and upload the certificate
and key through the browser (see
“Using Security and Encryption” on page 8-3 ).
Perform a hard reset to have the SLK load the new certificate and key and
delete any old ones in the system. If you use a browser, you must have the
Sun
Java Plug-in 1.4.0 or higher installed. SSL setup is not available through VNC.
Note: Be sure an appropriate certificate/key is installed and functional before
changing the mode. If the certificate/key is not installed, not loaded, or wrong,
mandating HTTPS locks out the SLK to any remote access. For installation
information, see
Chapter 8 .
❖
HTTP port number . You may specify a number other than the HTTP default
port number of 80. ( HTTP port number is on the second screen in the SLK8.)
Second Security Screen
The second security screen offers the user additional security by allowing changes
to default port numbers, as well as forcing logout of idle terminals.
❖
HTTPS port number . You may specify a value other than the HTTPS default
port number of 443.