Pkg-File-Service – Control Daemons with Salt – Change SSH Server Port

You can control a huge number of daemons with a configuration management system. Package-file-service is the common pattern for this: install the software, replace a configuration file and finally restart the daemon to use the new configuration. This article shows … Continue reading

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Salt Quickstart – Salt Stack Master and Slave on Ubuntu Linux

You can control a thousand computers with Salt. And this is how you install Salt. Slaves, the controlled computers, can be anywhere: behind an NAT, behind a firewall, on an unknown address. And still you can control them. Only the … Continue reading

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First Steps on a New Virtual Private Server – an Example on DigitalOcean and Ubuntu 16.04 LTS

These short notes list example first steps when manually configuring a new virtual private server on DigitalOcean and configuring a DNS name on NameCheap. Always use good passwords. Only good passwords. Good passwords every moment.

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Hello Flask Web App – Python 3 Flask Development Server Install on Ubuntu 16.04

You can create web apps with Python and Flask. This short “Hello World” tutorial shows you how to install development server for Python 3 and Flask. There are two very successful Python web frameworks. Flask is the simple one, Django … Continue reading

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Hello Go world – Install and Run Go in Less Than a Minute on Ubuntu 16.04 LTS

Go is a new programming language. It’s similar to C++, but aims to be simpler, safer and tries to support parallel operations better. Installing Go and running “Hello world” takes less than a minute. This short tutorial shows you how … Continue reading

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Hello CFEngine – CFengine3 on Ubuntu 16.04 Xenial

This article shows you how to install CFEngine 3 on Ubuntu and write a simple “Hello World” program. Modern configuration management systems let your describe your infrastructure as code in an idempotent way. You define the target state of your … Continue reading

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PostgreSQL Install and One Table Database – SQL CRUD tutorial for Ubuntu

PostgreSQL is a popular database used often with Python Django, Python Flask and many other frameworks. It’s known for reliability and being very ACID. In this tutorial, you’ll learn to Install PostgreSQL Server and Client on Ubuntu Create, read, update … Continue reading

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Install PostgreSQL on Ubuntu – New user and database in 3 commands

Installing PostgreSQL is trivially easy. You just have to use the same name for linux user, database user and the database name.

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MySQL Install and One Table Database – SQL CRUD tutorial for Ubuntu

MySQL is the most popular multi-user database. In this tutorial, you’ll learn to Install MySQL Server and Client on Ubuntu Automate MySQL login Create, read, update and delete data (CRUD)

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New Default Website with Apache2 – Show your homepage at top of example.com, no tilde

Install the most popular web server in the world, Apache. Put your homepage on a simple URL, like http://example.com. You don’t need tilde or username (no http://example.com/~tero)

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