SmokeStack is a Personal Chat Server - an Android Echo Server Application for the Chat Messenger Smoke which is known as worldwide the first mobile McEliece Messenger (McEliece, Fujisaka and Pointcheval). This Volume II is about the Chat Server SmokeStack. Volume I of the same author is about the referring Smoke Chat Messenger Client. This Open Source Technical Website Reference Documentation on paper addresses to students, teachers, and developers to create a Personal Chat Server on Android based on Java for learning and teaching purposes. The book introduces into TCP over Echo (TCPE), Cryptographic Discovery, Fiasco Forwarding Keys, an Argon2id key-derivation function, the Steam file transfer protocol and the Juggling Juggernaut Protocol for Juggernaut Keys, mobile Server Technologies, Ozone Postboxes and further topics.