Setting up an LDAP Client

This post continues on from my previous post on configuring an OpenLDAP server and will demonstrate setting up a client configuration in Enterprise Linux 8. Note: I originally wrote both this and the previous post using the Enterprise Linux distribution AlmaLinux, however during the course of testing I re-built the virtual machines to use Oracle … Read more

Authentication with OpenLDAP on Enterprise Linux

This post will demonstrate setting up an OpenLDAP Server for user authentication on Enterprise Linux. OpenLDAP is an implementation of the Lightweight Directory Access Protocol and is often used for user identity and authorisation services in corporate environments. I’ve previously demonstrated setting up an Enterprise Linux virtual machine, so if you haven’t already done so … Read more

Configuring NTP on Enterprise Linux

In this post we’ll configure Network Time Protocol services in our local network. NTP provides time synchronisation which is important for authentication services and single-signon which we’ll set up in a later post. This post assumes you’ve already got an Enterprise Linux server setup. I’ll be using AlmaLinux that I installed in this post, although … Read more

Setting Up Oracle Linux Automation Manager

Previously I wrote about using Ansible to manage the configuration of Linux servers. I love using Ansible and use it almost every day, however in a large Enterprise environment with multiple users and a lot of Ansible roles and playbooks, sometimes using Ansible on its own becomes difficult to maintain. In this post I’m going … Read more

Managing Linux servers with Ansible

Ansible is an open source, configuration management and automation tool sponsored by Red Hat. Ansible lets you define the state that your servers should be in using YAML and then proceeds to create that state over SSH. For example, the state might be that the Apache web server should be present and enabled. The great … Read more

Joining Enterprise Linux to Active Directory

In this post I’ll outline the steps to join an Enterprise Linux host to Microsoft Active Directory for user account management. Why would you want to do this? In an Enterprise environment it’s common to have a mix of Windows and Unix/Linux machines. To resolve the issues of user account management across a network of … Read more

Installing Enterprise Linux

In this post I’m going to demonstrate the installation of Enterprise Linux in VMware. I’ll be installing the AlmaLinux distribution because it’s a completely free, community maintained Enterprise distribution, though the steps outlined here should be the same for all variants of Red Hat Enterprise Linux, including Oracle Linux, Rocky Linux and CentOS. First of … Read more

Building the Linux Kernel

This is a short post describing how to build and install the Linux kernel from source. There’s plenty of documentation elsewhere online that goes into more detail than I will here, so this is mainly as a reference for myself. I’m using Fedora 34, but you can follow similar steps for other distributions. First install … Read more

Running WordPress at scale

Since 2017 I’ve worked as the Technical Lead for a Sydney Media publisher. My team and I build and manage over 70 commercial WordPress websites generating over 1M page views per month and regularly sending content to over 500,000 subscribers. While I wouldn’t necessarily call this massive scale, it’s definitely required a lot of on-going … Read more