You are your website editor, owner and now administrator. You want control over the whole process and you are migrating from a managed site. Or you are a versed user on unix-like environments and you are just willing to export your database. This is a simple post on how to export a MySQL database. If […]

How to export a MySQL database.

How to patch Spectre and Meltdown the ROM way
In a previous article I briefly, sort of, talked about the Spectre and Meltdown vulnerabilities. I have also written two guides to patch them from the OS side using a UNIX flavour from the BSD camp and a GNU/Linux distribution. Both actions resulted successful but there is a third way to patch this vulnerabilities. Regular […]

How to install ModSecurity 2 on FreeBSD
WARNING: A newer version of ModSecurity is available. The article to install ModSecurity 3 on FreeBSD can be found here. Will be published on March 1st, 2021. If you find the articles in Adminbyaccident.com useful to you, please consider making a donation. Use this link to get $200 credit at DigitalOcean and support Adminbyaccident.com costs. […]

How to manage site visitors based on IP Geolocation
Whenever someone publishes a website on the internet, most of the times, their intention is that site to be seen around the globe. However, as a site administrator you may want to divert users from one country to visit some specific version of that site, maybe because of the visitor’s language. Other times, less often […]

Nessus vulnerability scanner
Nessus is a very well known vulnerability scanner used by many large and small companies to assess their systems and correct the issues found in them. Cybersecurity teams and specially auditors, make heavy use of tools like this in order to follow up the state of infrastructure and environments. Having a tool like this saves […]

The Original Sin
Disclaimer: What you are about to read may contain inaccuracies. Feel free to discuss them somewhere else. This is also my opinion and as such it may change through time, maybe tomorrow, next month, next year, next decade or never. I do also make very few reviews (if any) of what I write here so […]

How to install WPScan on FreeBSD
Vulnerability scanners are useful tools to find issues on systems, networks and the like. WPScan is dedicated to find vulnerabilities on WordPress installations. A short tutorial as an introduction to the tool has been published here. So if you are interested on the tool and on FreeBSD, let’s dig on this how to install WPScan […]

How to set CentOS 7 repositories
CentOS is the free open source replica of the well known Red Hat Enterprise Linux (RHEL). With a very good reputation because of its stability and performance RHEL is nowadays the dominating GNU/Linux distribution in the enterprise environment. As a gift, in a similar fashion to Microsoft’s Windows trial versions (without limits to the use), […]

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 upgrade MariaDB on FreeBSD
As we all know a best practice recommendation that has been made forever, and forever many are just skipping, is running up to date software and it is one of the core fundamentals of IT. If you happen to use MariaDB on FreeBSD, the official guide on their website may not be that all helpful […]
