===== Postgresql replication Debian =====
Two servers:
  * postgresql1 192.168.100.15
  * postgresql2 192.168.100.20
==== Stretch ====
<code>
# hostnamectl set-hostname postgresqlX
# echo '192.168.100.15 postgresql1' >> /etc/hosts
# echo '192.168.100.20 postgresql2' >> /etc/hosts
# apt-get install postgresql
# reboot
</code>

==== References ====
  * https://perlubantuan.com/set-up-master-slave-replication-for-postgresql-9-6-on-ubuntu-16-04/