In this post you will find simple instructions to install rkhunter on FreeBSD which is a root kit “hunter” so your system/s will have some security in place for that kind of unwanted software. But for those who do not know what a rootkit is, let’s give it a simple definition (which you can get […]
How to install RKHunter on FreeBSD
How to work with Nessus scan results
Working with Nessus scan results is easy. How do I know that? Because I’ve worked with this tool for some time and although I do not know every corner of the things I’ve been doing some scans and solving quite a few deffects on systems that were labeled as ‘production ready’ when they clearly weren’t. […]
How to update FreeBSD with freebsd-update
Anytime you set a clean fresh FreeBSD install or just any other operating system you must update it. This should be the first thing. If you are a bit security aware (read paranoid) you can first set up the firewall rules and then update the system to the latest release where you have all the […]
How to connect a FreeBSD box to the internet through an Android device via an USB port
FreeBSD is known to be very suitable for computer servers, from Netflix streaming to Whatsapp messaging as powerful examples. Some also use FreeBSD as a workstation OS. I am one of those using BSD on both camps, although I also use some GNU/Linux boxes for ‘trivial’ purposes. In modern times having an internet connection seems […]
How to configure a Virtual Host in Apache
You may have just one website and that is ok. If that is your case you can avoid this entire chapter. But some of you may also have several websites. And quite probably you want to use one single public ip to resolve all the domains you have. The Apache documentation is the main resource […]
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 install Suricata on FreeBSD
Suricata is a free, open source, Intrusion Detection System software, or IDS for short. But it can also act as an Intrusion Prevention System, or IPS. It works by finding patterns using heuristics typically from network traffic. When configured to just warn about suspicious activity it is called an IDS, however when it blocks the […]
A word on Spectre and Meltdown
As professionals and many aficionados know, early this year some widespread vulnerabilities were found on Intel CPU’s as well as on AMD’s. It was a bit later discovered the flaws also affected some RISC architectures such as Power and ARM. Everybody went nuts and the world seemed to be tumbling because of two CPU vulnerabilities […]
FreeBSD Jails
The FreeBSD jails is a virtualization technology you may have skipped for too long. It is an operating system level virtualization and is one of the differential characteristics of FreeBSD from Linux. Solaris took it to the main corporate use with Zones and as it couldn’t be any other way the Illumos folks also play […]
How to configure the PF firewall on FreeBSD
There are three firewall options on FreeBSD. The in-house built IPFW, the ‘old’ IPF (known as IP Filter) and PF ported from OpenBSD. PF is a very popular piece of software which was originally sparked from an issue on the IPF license that prevented making changes publicly available, which the OpenBSD did all the time. […]