Load Balancer & Selecting Webserver

Good day all.  We have two webservers (v11 SP10) that are connected to a load balancer.  I need to make updates to Adobe since the Collaboration can't recognize pdf documents.  I want to push all of the users to a single webserver while I make the update to the other one.  I need to be able to test the updated server before allowing users back on it.  Is there a way to directly open the connection with the server I am on?  I tried double clicking in the InnovatorServerConfig.xml file, but it just opened a page showing the information in the file.  Thank you for your help.