Construction of Interactive Network Servers which stores user names, message data and few other interactions in a bulletin board file. Network structure should be robust and it is to be scaled to multiple servers to support concurrency. you must implement the server as a UNIX service (“daemon”) and
you further must use the POSIX API provided by the UNIX standard C library. Therefore your server must
be written in C or C++. You will have to implement a replicated database management system. Use the bulletin board file as our database. This file is now kept replicated (and synchronized) on multiple servers.