Users Guide

60 Using Server Administrator
•The SSL Encryption field specifies the encryption levels for the
secured HTTPS sessions. The available encryption levels include
Auto
Negotiate
and 128-bit or higher .
•
Auto Negotiate : To allow connection from browser with any
encryption strength. The browser auto negotiates with the Server
Administrator web server and uses the highest available
encryption level for the session. Legacy browsers with weaker
encryption can connect to the Server Administrator.
•
128-bit or higher: To allow connections from browsers with
128-bit or higher encryption strength. One of the following cipher
suites will be applicable based upon the browser for any
established sessions:
SSL_RSA_WITH_RC4_128_SHA
SSL_RSA_WITH_RC4_128_MD5
SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA
TLS_DHE_RSA_WITH_AES_128_CBC_SHA
SSL_RSA_WITH_3DES_EDE_CBC_SHA
TLS_RSA_WITH_AES_128_CBC_SHA
TLS_DHE_DSS_WITH_AES_128_CBC_SHA
SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA
• Key Signing Algorithm displays the supported signing algorithms. Select
an algorithm from the drop down list. If you select either SHA 512 or SHA
256, ensure that your operating system/browser supports this algorithm. If
you select one of these options without the requisite operating
system/browser support, Server Administrator displays a "cannot display
the webpage" error. This field is meant only for Server Administrator auto-
generated self-signed certificates. The drop down list will be grayed out if
you import or generate new certificates into Server Administrator
NOTE: 128-bit or higher option does not allow connections from browsers
with lower SSL encryption strength, such as 40 bit and 56 bit.
NOTE: Restart the Server Administrator web server for the changes to take
effect.
NOTE: If the encryption level is set to 128-bit or higher, you can access or
modify the Server Administrator settings using a browser with the same or
higher encryption levels.
book.book Page 60 Friday, December 4, 2009 3:20 PM