NetCallback is a Java application permitting the export of TCP and UDP ports behind a firewall to hosts outside the firewall. This may be useful in some special cases, for example, centralized control of test (demo) networks, or connection to applets running in browsers. NetCallback consists of a public and a private server. The public server executes on a host outside the firewall and is responsible for receiving port forwarding requests. The private server is run on a host behind the firewall and is responsible for contacting the public server and connecting the protected TCP and/or UDP service to the public server clients. The connection between public and private servers may optionally be encrypted using SSL.
No changes have been submitted for this release.
Release Notes: Support for UDP tunneling (in addition to the existing TCP tunneling) has been added. UDP datagrams are sent over the persistent connection and may utilize encryption. The command line invocation has been modified to accommodate the new functionality.
Release Notes: The SSL server socket had not been configured to require client authentication. This potentially allowed any PrivateServer to connect to a PublicServer. This has been fixed.
Release Notes: Secure socket layer (SSL) support has been added. CLOSE requests are now sent from the PublicServer to the PrivateServer. The documentation has been improved.