Remote terminal access to a VAX/VMS system in a heterogenous network system

In a heterogenous network system consisting of computers of different makes, there is a need for remote terminal access and internet file transfer. The topic of the thesis concentrates on the design and implementation of remote terminal access from any computer to a VAX/VMS system. The only prerequisite condition is that the computer - the remote node - which accesses the VAX/VMS node - the host node - be on the same heterogenous network system based on the ETHERNET standard. The strength of this design is a fully VMS compatible terminal driver that provides all the screen-oriented capabilities of a DEC VAX/VMS Terminal Driver. Also, its design involves terminal server functions to manage the total number of remote logons, and provides clean recovery from different cases of remote access failure. The design concentrates the bulk of the code on the VAX/VMS system, thereby allowing relatively easy implementation of remote terminal access on any remote node. The remote node need only to implement a terminal emulator and necessary modules to facilitate the same internet communication protocol as this implementation.