Install PostgreSQL on Ubuntu 18.04 Bionic Beaver - LinuxConfig.org

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The objective is to Install PostgreSQL server or client on Ubuntu 18.04 Bionic Beaver.
This is a companion discussion topic for the original entry at https://linuxconfig.org/install-postgresql-on-ubuntu-18-04-bionic-beaver
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Jorge Rocha

You should not use ‘trust’ security method for all hosts. ‘md5’ would be much more appropriated.