The monitoring capabilities of Sun Java System Web Proxy Server provides a detailed list of the server parameters that you can monitor at instance level.
From the Web Proxy Administration Server, you can perform the following actions:
View server statistics at an instance level.
Enable/Disable at an instance level.
Access the Administration Server
Click the Instance link from the Manage Servers page
Click the Server Status tab
Click the Monitor Current Activity tab
Set the Monitoring Current Activity to ON to monitor the server
You can also refresh the server in following intervals 5,10 and 15 seconds and view the statistics of the DNS, Keep-Alive, Cache, Server Requests and Work Thread connections.