Having all the data in just one server is not the best idea. Especially when talking about a database server. Spreading information in several boxes is a good measure to prevent data loss but also for performance. A MySQL/MariaDB master-slave replication scheme is often used as a good solution for both, data redundancy and speed. […]
How to setup MariaDB master-slave replication on FreeBSD
How to analyze suspicious email
Millions of emails are sent and received every day. Most of them are just junk. And many among those are potentially harmful. Phishing still is one of the most effective ways for malicious actors to penetrate into well secured networks. The weakest link, too often, is the human factor. Training can help mitigate this 24×7 […]
How to install Docker on Ubuntu 18.04
Operating System level virtualization is hitting hard now, as much as VM’s did just a few years ago. Docker is the popular framework for this matter, the new kid on the block so to speak. This is the hot spot now and if anyone wants to appear knowledgeable about system administration knowing this technology is […]
How to configure Apache HTTP as a reverse proxy on FreeBSD
Apache HTTP as a reverse proxy consists on setting an Apache HTTP server as a frontal access for one or multiple backend servers. In the recent years many have started using NGINX as a reverse proxy since this piece of software really shines for serving static content an acting as a cache server. This doesn’t […]
How to enable TLS traffic from the origin server on Cloudflare Argo Tunnel
As it can be read in the last post, setting up a Cloudflare Argo Tunnel to serve web content from home or corporate network without poking holes to it, is quite easy to achieve. In this article I’ll show you how to enable TLS traffic from the origin server on Cloudflare Argo Tunnel. Obviously, you […]
How to test pfSense on VirtualBox running on FreeBSD
There are other guides on how to do this on Windows, Mac, but not on FreeBSD, so here goes a how to pfSense on Virtualbox running on FreeBSD. Before going to it, let’s address the first question, which is what is pfSense. pfSense is a FreeBSD based distribution made for networking purposes. The company behind […]
What is Expect?
Expect is a handy scripting tool for task automation. You may have never heard of it. I heard about many scripting things before. But one day I needed something simple but didn’t know how to proceed, what would be a good tool for my purpose. The task was simple. Exporting a website content from a […]
How to install the Clamav antivirus on CentOS 8
Clamav is a free antivirus nowadays owned by Cisco and developed under the umbrella of the Talos-Intelligence group. Don’t be fooled by the word free, this is serious business. It supports a wide variety of operating systems from Windows to Linux-based ones as well as FreeBSD. Many companies are using other types of antivirus software […]
How to improve Apache HTTP performance on FreeBSD
There are some nice articles on the internet telling you how to improve your Apache HTTP server’s performance. I did my bit on FreeBSD land. While turning on a different MPM than the prefork default one increases Apache HTTP performance by a lot, it is not the only thing one may do. For example if […]
How to configure Modsecurity 3 for WordPress on FreeBSD
A few weeks ago I wrote a guide on how to install Modsecurity 3 on Apache HTTP for the FreeBSD operating system. However there’s a catch with that setting and with Modsecurity in general. As good as it is as a WAF you need to at least adjust its configuration to the tool one pretends […]