Psql is a command-line interface for interacting with PostgreSQL, a powerful and open source relational database system. Brew is a package manager for macOS that makes it easy to install and manage software. Here are the steps to install psql with brew:

• First, install the brew package manager if you don’t have it already. You can do this by running the following command in your terminal:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

• Second, update brew by running the following commands:

brew doctor
brew update

• Third, install libpq by running the command:

brew install libpq

Libpq is a library that contains psql and other PostgreSQL client utilities.

Download the Complete Guide to System Hardening#

Introduction to System Hardening#

System hardening is the art of strengthening your computing environment against potential threats. At its core, the philosophy is about implementing the principle of ’least privilege.’ This involves:

• Knowing exactly what services and applications need to run on a system
• Creating documentation that outlines policy, standards, and guidelines
• Securely configuring operating systems, virtual servers, and software
• Managing application settings to enhance security
• Streamlining database setup and configuration
• Securing network devices and portable equipment

Why Platform Hardening Matters#

Platforms, such as servers or databases, are the foundation of your data infrastructure. Their integrity is crucial for the secure, reliable transfer and storage of information. As a best practice, ensure that your platforms are configured and maintained to repel unauthorized access and service interruptions.

**Always Have a Single, Authoritative Source For Your Schema
** Everyone should know where the official schema resides, and have a frictionless experience in getting a fresh database setup. One should be able to walk up to a computer, get the latest from source control, build, and run a simple tool to setup the database (in many scenarios, the build process can even setup a database if none exists, so the process is one step shorter).