This 2020 has been a difficult year for everyone. Because of this difficulty and the opportunities I had the chance to take, I’ve been able to contribute back to the open source community, not just with content here in Adminbyaccident.com, advocacy for a few tools such as my favorite OS (FreeBSD) and the usual mouthful […]
Donation Time 2020
How to mitigate Spectre and Meltdown on an HP Proliant server with Ubuntu
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 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 […]
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 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 install WordPress on FreeBSD
You can find information about how to install WordPress on FreeBSD somewhere else since there are many tutorials around explaining it. However I thought mine would be a bit more interesting to you. Read on. As you should be aware (and hopefully you already are) installing WordPress requires a stack of other software. Typically you […]
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 […]
A brief introduction to Regular Expressions
A regular expression is a set of characters, a string of characters if you will, that specify a pattern. Ever used the grep command? It makes use of them. The ‘grep’ command is very handful when one needs to look for certain things inside a text file, or looking for some specific pattern from another […]
How to set time and date in FreeBSD
In a FreeBSD system one may need to adjust date and time, specially if one has opened a VPS instance in some hosting provider. The system already provides a list of time zones. Just look around in the /usr/share/zoneinfo folder and subfolders to find the one that fits your needs. Just remember this will have […]
How to manipulate and use USB drives in FreeBSD
If you are coming from the Windows, Mac or GNU/Linux world using USB drives on the desktop is a piece of cake. You plug it and it works. That’s it. Interoperability between the proprietary world and OSS (Open Source Software) has improved but there’s still a very palpable line. Just grab a new USB drive, […]