The first communication that takes place between the remote client and the database is to the Login Broker Listening Port. The Client connects to the Remote S erver Listening Port.The Broker spawns a Remote Server on demand in the -minport -maxport range, redirects the client to the S erver Listening Port, increments the reservation count for the server ( -Ma).A Client connects to the database Login Broker Listening Port (-S).The sequence of events when a remote client connects ( three-way-handshake): How do remote clients connect to the Progress Database? Knowledge of how Progress uses TCP ports will allow an experienced Network Administrator to configure a firewall for use with the Progress Database environment.Ġ. Progress Technical Support neither supports nor is qualified to make specific recommendations for a particular firewall setup and Progress has neither specifically tested nor certified any firewall implementation with it's products. This Article is for information purposes only. It is necessary to open access to ports through the firewall because client-server connections to the database use TCP ports to communicate with remote clients. Firewalls are implemented by Network Administrators typically to block access to certain network ports in order to prevent unauthorized network access to a machine.
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