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 upload a FreeBSD custom image on DigitalOcean
Due to DigitalOcean not releasing ready to use images for FreeBSD 13 at this time, and since I opened a ticket a couple of months ago without a strong positive message from DigitalOcean supporting FreeBSD 13, I’ve decided to make use of their custom image upload service and give it a go. I must say […]
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. […]
SSH keys
SSH or how to remotely control a UNIX system in a secure manner. The SSH keys is a secure method to interact with a UNIX system remotely. They are also used to transfer data between different systems. Using clever cryptography anyone can use them. As their name state it is a pair of keys, one […]
How to harden Apache HTTP
Disclaimer: This is a long article. I haven’t collected some nice configuration settings here for the sake of it. There are other hardening guides but some fall short on explaining the functionalities to be enabled or disabled. Every step is shortly, and hopefully clearly, explained so any reader can grasp the main idea of every […]
How to enable log rotation on FreeBSD
This is a very short simple entry but it may help you. As many others you may be running a web server, or any other service that creates some logging information. Enable log rotation on FreeBSD will keep those log files in a manageable size (at least more readable) and they won’t grow and expand […]
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 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 […]
Live monitoring with Netdata
Netdata is a real time monitoring software that allows administrators, developers and architects have a visual representation of a system’s performance live. In short, porn for system’s tuners and other masochists but also a great tool to check system’s behaviour under load giving all members of a team to look at their part while the […]
The firewall
If you don’t know why you need a firewall it’s because you are not very tech savy. Don’t worry. You can discover by yourself why you need one. The router sitting in your house has one installed in it. And please don’t disable that by any mean. You can check why a firewall is important […]