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 analyze suspicious email
How to use Fail2ban with WordPress
In a previous article we did an install of Fail2ban on a FreeBSD server. This tool can help us to protect our WordPress install, independatly from if we are using the FAMP stack or the LAMP stack. As I mentioned on that article Fail2ban is a complementary tool to our firewall. It works by scanning […]
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 enable SSL on Apache on FreeBSD
On this guide you will read about a simple way to enable Apache’s TLS connections on your web server. Aside from useful it secures the connection from the client to the server and prevents unwanted tinkering. Anyone on the need of SSL (nowadays TLS) will benefit from this article but particularly will do those in […]
How to load and unload kernel modules in Linux
Kernel modules permit enabling hardware features on a given system. For example, if we need to read from a particular filesystem from a hard drive, we need to load a particular kernel module. Or use a specific network card, a sound card or sound device, a video display, etc. This is mostly done automatically in […]
A few useful network commands
Troubleshooting network issues with simple commands is not a very difficult topic once there is a little toolbox to pull from. Needless to say networking topics can be very complicated and any specialist on the field will tell you how cumbersome it can really get. However with a few set of commands one can get […]
Monitoring Systems (One)
Monitoring systems or how to get lost in fierce madness. There are many solutions to monitor systems and most of them have some kind of web interface to operate. Choosing the right tool for any job is a tedious task and for a newbie like me it is a bit harder, specially for a sensitive […]
Abandon Linux. Rolling back the entire OS is possible.
When I was writing an article on updating FreeBSD from the 11.2 version to the new major release number 12, I was trying to add something extra for those who may read some of the information I publish. FreeBSD as a UNIX operating system has similar functionality to the old school UNIX ones such as […]
How to install OpenVAS on FreeBSD
Was ist das? OpenVAS is a vulnerability scanner. If you are unfamiliar to the vulnerability scanning world this can be an overwhelmingly experience but tools like this are what makes the matter more accessible, more manageable, easy to see and easy to fix. Before digging into the matter at hand here, that is how to […]
How to install Redis for WordPress on FreeBSD
I happen to self-host a few WordPress sites on FreeBSD. And as much as one can configure OP-Cache to improve PHP’s performance, object cache is a must for many WordPress sites. This how to install Redis for WordPress on FreeBSD will explain how to install an object cache (Redis) for WordPress (via plugin) on this […]