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In this article I discuss how to use the modern Debian based Advanced Package Tool known on the command line interface as apt. To aid the discussion I provide examples of running several of the common package management commands on an Ubuntu 18 LTS server with explanations of what each command is doing.
I was recently tasked with migrating a GitLab instance from one ContOS Linux server to another which required creating a backup of the existing system via the gitlab-backup CLI utility. When I read the GitLab docs on creating backups I learned that gitlab-backup requires at least a version of 1.3 for GNU Tar. As of this writing it turns out this is not possible using the yum package manager so, in this article I walk you through how to upgrade the tar compression utiltity from source.
This is the first article of a series featuring a collection of useful tasks for administering PostgreSQL on the Linux operating systems Ubuntu 18 LTS as well as CentOS 7. PostgreSQL is a powerful and robust Object Relational Database which is freely available as open source software and widely popular. In this article I cover how to install and initialize the PostgreSQL database cluster. I also cover the key configuration files as well as their purpose.
This is the second article of a series featuring a collection of useful tasks for administering PostgreSQL version 11 on the Linux operating systems Ubuntu 18 LTS as well as CentOS 7. For those unfamiliar, PostgreSQL is a powerful and robust Object Relational Database which is freely available as open source software and widely popular. In this article I introduce the psql interactive shell using the default postgres user.
This is the third article of a series featuring a collection of useful tasks for administering PostgreSQL on the Linux operating systems Ubuntu 18 LTS as well as CentOS 7. For those unfamiliar, PostgreSQL is a powerful and robust Object Relational Database which is freely available as open source software and widely popular. In this article I cover how to create user accounts and establish connections with these accounts.
In this fifth article demonstrates how to change the default data directory of a PostgreSQL database cluster running on the Linux Ubuntu 18 LTS and Centos 7 operating systems. This article shifts focus to improving the scalability, robustness and, performance made possible by moving the data directory to it's own area of the file system. Isolating the data directory also reduces file access contention with other OS activities and allows for easier resizing.
In this How To article I demonstrate using the find command in Linux and, through the use of some practical examples, I aim to help the reader become efficient when working with the Linux file system as well provide building blocks for further experimentation.
This article reviews common text manipulation utility programs available within the Linux operating system. The article is chock full of discussions paired with simple examples to demonstrate the usefulness of several text utility programs available to Linux users.
In this article I discuss how to deploy a simple Flask Todo app complete with a PostgreSQL database to the AWS cloud on a Amazon Linux 2 AMI utilizing Nginx web server and uWSGI application server
In this article I demonstrate how to setup a log shipped replica of a Postgres v11 master database creating a warm standby replica for High Availability and read scaling utilizing the WAL-E program. WAL-E is a Python based program designed to facilitate performing continuous archiving of PostgreSQL WAL files and base backups.
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