ISA Server / Firewall Client - blocking an application
Posted on 2011-09-19
We use Kaseya in our office and it has an agent that you install on your clients computers and the agent checks back in to your server on port 5721 TCP.
We have a new client who use ISA SErver 2006 and the ISA firewall client and we are having great difficulty in getting our kaseya agent to checkin.
We have setup the firewall rules and we are confident they are correct but it is the firewall client where we seem to be struggling.
We can telnet from the client pc to our server address (which is external address) on port 5721 fine but our agent will not communicate. If we stop the firewall client then we can no longer telnet so this is leading us to believe it definitely is the firewall client.
We have asked around and even asked Kaseya but they obviously don't have many who use the ISA client as they could provide no information.
What do you need to setup on the firewall client rules to allow an application to communicate outbound on port 5721 (tcp) to an external server.