Postgres 9.4 introduced an awesome feature Replication Slots. This allows you to implement Postgres replication without using any external archive management tools.
Yesterday, I presented three hours long tutorial on “Out of the box Postgres 9.4 Replication using Replication slots” at PgCon (Postgres conference) in Ottawa,Canada. If you want to follow along slides with VM, you can download it from the link posted on the conference tutorial schedule page.
Here is the slides deck: