With the invention of the Internet, the way of communication revolutionized, a long ago. E-mail replaced traditional postal mail. The email was fast still there were some bottlenecks. One would not know if the person on the other end is online or not, hence email was a fast way of communication than postal mail but its constraints gave way to Instant Messaging ( IM ).
Originally Published at https://www.tecmint.com/create-your-own-instant-messagingchat-server-using-openfire-in-linux/