RHEL 7.6+/CENTOS 7.6+ Podman, Cockpit

For the last week or so, I have spent measurable time experimenting with RHEL’s Podman. A few months back with the RHEL 8 release, Red Hat officially dropped support for Docker. Podman is Red Hat’s answer to Docker. Podman is a daemon-less container runtime engine. There is however, very great news as from what I’ve …

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Adding Let’s Encrypt to Debian Web Servers

Let’s Encrypt is an automated certificate authority providing free of charge, domain-validated TLS certificates that are obtained using the ACME protocol. Debian 8 (Jessie) Howto Enable backports: Install certbot: apt-get install python-certbot-apache -t jessie-backports certbot –apache Optionally: follow certbot instructions and enable quiet cron job or follow up Optionally enable Perfect Forward Secrecy: edit “/etc/apache2/mods-available/ssl.conf” and uncomment …

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Linux Package Management Basics

Introduction Most modern Unix-like operating systems offer a centralized mechanism for finding and installing software. Software is usually distributed in the form of packages, kept in repositories. Working with packages is known as package management. Packages provide the basic components of an operating system, along with shared libraries, applications, services, and documentation. A package management system does much …

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