Tag: System Administration
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Generate a CSR and Private Key using OpenSSL
Ordering a new SSL Certificate? Learn how to generate your own CSR and Private Key in a few simple commands.
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Downgrading from MySQL 8 to MySQL 5.7 on Ubuntu 20.x
By default on Ubuntu 20 LTS the version of mysql-client is 8. This is incompatible with MySQL servers where the version remains at 5.7. This guide explains how you can downgrade your client version back to 5.7.
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How to parse a log file for unique krb5 basic authentications
A handy one-liner for parsing krb5 basic auth attempts from an apache log file.
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Fail2ban, WordPress and Rackspace Virtual Cloud Servers
This guide will walk you through setting up Fail2ban on a Ubuntu Cloud Server and linking it to a Cloud Load Balancer’s Allow/Deny List via the Rackspace API.
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Setting up macOS for Web Development
Here’s a concise guide on how I would set up the software stack on a MacBook.
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Permit or block an IP address using ufw on Ubuntu
Here’s a super simple guide on how to permit or block an IP that wants to connect to your Ubuntu server.
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How to switch to system Cron for WordPress
WordPress cron isn’t always on-time. Learn how you can make use of your web servers built-in scheduler to keep your events running on-time.