You may find Ad-hoc mode (from Part II) easy to use on day-to-day tasks such as for quick systems checks or when updating a config file on multiple systems. Stepping up simple ad-hoc commands are Ansible playbooks (from Part III) and Ansible roles which are very powerful ways to utilize Ansible’s features.
Continue reading “Ansible Part IV: Roles Overview”Tag: Ubuntu
Ubuntu
Ansible Part III: Using Playbooks
The Ansible cases we tested so far from Part I and Part II are what we call ad-hoc mode. If you are pretty comfortable on combining these ad-hoc commands and bash scripts, you can do a lot of work for a small amount of time. But Ansible can offer a lot more features. We’ll explore creating Ansible playbooks on this part.
Continue reading “Ansible Part III: Using Playbooks”Ansible Part II: Using Modules
On the first part of this series, you learned how to setup and configure Ansible. Part II explains how Ansible modules work and how you can use Ansible in ad-hoc mode from the command line.
Continue reading “Ansible Part II: Using Modules”Ansible Part I: Installation and Setup
This is the part one of the four part series on the basics of how to use Ansible. There will be a gradual introduction from basic to intermediate examples how to install, setup and use Ansible. As well as the how to create ansible playbooks and roles. Let’s get started with Part One: Installation and Setup.
Continue reading “Ansible Part I: Installation and Setup”Configuring postfix relay for mail sending Ubuntu 16.04
Postfix can be used to send mails to an external SMTP relay which is helpful if you want to setup notification sending from your server. The following steps will outline email sending using the Linux command line directly which can also be used for monitoring scripts that can send email notifications. Continue reading “Configuring postfix relay for mail sending Ubuntu 16.04”
Raspberry Pi Thin Client
This tutorial creates a Raspberry Pi, a low cost single board computer, which can be used as a thin client that works with RDP, VMWare View, Citrix, OpenNX, and Spice. The base image for the OS is based on Debian.
The Linux Filesystem Explained
Have you ever wondered what all the folders on the root (/) directory of the Linux filesystem are for? Which file goes into which directories and why are they saved in those directories? On this post, we’ll check out each folder and what purpose or function they serve for the operating system itself. Continue reading “The Linux Filesystem Explained”
Comparing files using the diff command
The diff command outputs the differences between two files, line by line. For files that are identical it produces no output, for binary files only reports if they are different or not.
The set of differences produced by diff is often called a diff or patch, and this output can be used later on by the patch command to change other files. Continue reading “Comparing files using the diff command”