Unable to Connect to HTTPS Management Console - Error: "bluecoat.sgos.ui.SG_UIApp.class"

Products

• ProxySG Software - SGOS

Issue/Introduction

When accessing ProxySG or Advanced Secure Gateway (ASG) via the Management Console GUI an error is presented in the top left corner as seen in the screenshot below. Upon clicking for more details you receive Java error "bluecoat.sgos.ui.SG_UIApp.class". 

Cause

An incompatible cipher setting exists an or incompatible certificate is in use for the HTTPS-Console service.

 

Resolution

To set the certificate to the default, issue the following CLI

>enable 
Enable Password: 
#conf t 
Enter configuration commands, one per line. End with CTRL-Z. 
#(config)management-services 
#(config management-services)edit HTTPS-console 
#(config HTTPS-Console)attribute keyring default

To reset the ciphers to standard ciphers, issue the following CLI

>enable 
Enable Password: 
#conf t 
Enter configuration commands, one per line. End with CTRL-Z. 
#(config)management-services 
#(config management-services)edit HTTPS-console
#(config management-services)attribute cipher-suite  AES128-SHA AES128-SHA256 AES256-SHA256 AES256-SHA DHE-RSA-AES128-SHA DHE-RSA-AES256-SHA DES-CBC3-SHA

To enable TLS 1, TLS 1.1, and TLS 1.2, issue the following CLI

>enable 
Enable Password: 
#conf t 
Enter configuration commands, one per line. End with CTRL-Z. 
#(config)management-services 
#(config management-services)edit HTTPS-console
#(config management-services)attribute ssl-versions tlsv1 tlsv1.1 tlsv1.2

Add the Management Console to the exception list

Open the Java Control Panel, select Security, and add the Management Console URL to the exception list.

Additional Information

Also see the related article. 

Unable to Connect to HTTPS Management Console - Error: "java.lang.NoClassDefFoundError"