ARP spoofing attacks are quite harming and they can easily constitute a man-in-the-middle (MITM) attack. They consist on the attacker sending ARP packets into the network the victim is located, typically redirecting traffic to the attacker’s machine. Once this is achieved the attacker can sniff all the traffic sent by the victim’s device and obtain […]
ARP spoofing attacks
How to update FreeBSD using beadm
Beadm is a tool which provides a wonderful and distinctive functionality on Solaris, OpenIndiana and FreeBSD. It relies on the ZFS filesystem allowing to take a filesystem snapshot. That can be used to manage the so called boot environments which provide a great way to secure updates, even when everything goes down the tubes. Hence […]
What is UNIX?
UNIX is an operating system. And your known equivalent is Windows or the Mac. You may even know about Linux. The purpose of an OS is to accommodate programs in order to get some work done. Editing pictures, browsing the web or serving data from a database. It is the thing that lets you operate […]
How to test SSL/TLS configurations
If you are in charge of any site with SSL/TLS conenctions enabled you are always in the chase to get the best possible and most secure configuration. This isn’t always the case and the lack of time does take its toll on many administrators. Those individuals are always asked to do more with less and […]
How to mitigate Spectre and Meltdown on an HP Proliant server with FreeBSD
As recently announced in a previous article I wanted to write a couple of guides on how to mitigate Spectre and Meltdown vulnerabilities in GNU/Linux and UNIX environments. It is always a good and I hope a standard practice to have your systems patched and if they aren’t for whatever the reason (that legacy thing […]
How to find vulnerabilities in your WordPress with WPScan
Vulnerability scanners are useful tools for administrators and security analysts alike. For the casual WordPress user tools like WPScan may look excessive and complicated for their knowledge, they just need their blog, web page, whatever they’re doing up and running. Any complex administration bothers them to the max, and there are good and valid reasons […]
How to enable Geolocation in AWStats on FreeBSD 13.0
A few weeks ago, a guide explaining how to install AWStats on FreeBSD was released here in adminbyaccident.com. On that piece a basic install of AWStats is shown, however, a nice and important functionality of AWStats is missing. Knowing the location of visitors is a matter of interest, for the sake of it or because […]
How to install Nextcloud on FreeBSD 12
Nextcloud. Have you heard of it? That’s quite probable if you’re here. But, what is it, what is it? Some say it is a Google Apps replacement, some say it’s just a place to store your documents, some others just rely on it to share documents across the company and edit them just in time […]
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 detect a WAF – Web Application Firewall
From a penetration testing perspective to identify if a Web Application Firewall (WAF) is in place is essential. The next question is, does an administrator need to know this? My view is, anyone who is in charge of any system that has implemented some sort of WAF needs to verify this tool is working, at […]