The VMWare ESXi is a hypervisor developed by the VMWare company and it is widely known and used in many environments and enterprises of all sorts. Nowadays it is the main component of a sort of a software suite. It is a type one hypervisor which means it runs directly on to the hardware controlling […]
VMWare ESXi (One)
How to install the FAMP stack
You may have heard of the LAMP stack which stands for Linux, Apache, MySQL and PHP or Perl. This is the same but instead of using the GNU/Linux operating system we’ll use FreeBSD. This is the FAMP stack. There are two ways to install software in FreeBSD, packages and the ports collections. Which in the […]
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 […]
How to install software in FreeBSD with pkgng
The pkgng is the package management system in FreeBSD. It is used to install applications, and specific modules, libraries, etc. Nowadays you can select in between more than 25.000 thousand. Yes, twenty five thousand. The syntax to use is very intuitive and simple. As you may be already aware software comes in two forms. Source […]
Abandon Linux. Move to FreeBSD or Illumos.
If you use GNU/Linux and you are only on opensource, you may be doing it wrong. Here’s why. Is your company based on opensource based software only? Do you have a bunch of developers hitting some kind of server you have installed for them to “do their thing”? Being it for economical reasons (remember to […]
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 […]
How to setup a simple firewall in FreeBSD using IPFW
Setting the firewall up is a mandatory task on any computer facing the internet. This is a simple, straightforward how to article on how to setup a box with an easy firewall configuration on FreeBSD. If you find the articles in Adminbyaccident.com useful to you, please consider making a donation. Use this link to get […]
Nmap cheatsheet
Nmap is a discovery tool used in security circles but very useful for network administrators or sysadmins. One can get information about operating systems, open ports, running apps with quite good accuracy. It can even be used in substitution to vulnerability scanners such as Nessus or OpenVAS for not very large environments, or quick audits. […]
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 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 […]