In my previous article I’ve explained how to setup a software RAID with mdadm. This was a RAID 5 setup with 3 drives, and in this article we’ll take a look how to expand it with a 4th drive, increasing its overall size. Here’s what we’ll do in principle: Getting the new drive ready Let’s … Read more
In this article I’ll explain how to setup a software RAID on Fedora. This will turn any number of attached USB drives into any flavour of RAID without the necessity of a dedicated enclosure. I’m using this setup for internal office data storage with redundancy, together with a Samba share. This works on any Linux … Read more
I was surprised to find that the mail command doesn’t work out of the box in Fedora, nor in the minimal installation of CentOS 7. Thankfully there’s an easy way to add it by installing the mailx package. yum install mailx That’s not the full story on how to send email from the command line … Read more
I like the idea of having a shared drive attached to my always-on Linux system, so that all my computers (Windows and Mac) can access those in a central place. It’s like a NAS without having a NAS box if you know what I mean. The easiest way to accomplish this is by using the … Read more
The firewall-cmd tool has a neat feature in that it knows what ports are used for certain services. This is handy for things like web server ports which our tired brains may forget from time to time (hint: it’s 80 for http and 443 for https). Even without knowing those numbers, we can still open … Read more
I was building a Fedora server with an old laptop, a Samsung Q330 to be precise. I’m surprised it runs Fedora 33 so well (it wasn’t happy with CentOS 8 at all). I wanted it to remain on at all times, even when the lid is closed. Sadly there was no easy way in GNOME … Read more
I’ve recently given Fedora a spin on my MacBook Pro (2011 vintage). While it installed fine, the WiFi card inside it was not recognised by default. From what I understand there is a Linux driver for the card, but the software around it is so restrictive that the driver cannot be included in the official … Read more
CentOS 7 has a nice command called hostnamectl. With it we can display the current hostname, and set any of the three types of hostname: static hostname (something like example.com) transient hostname (anything you like, assigned when using DHCP) pretty hostname (something like Jay’s MacBook Pro) By default, a CentOS installation comes back with localhost.localdomain … Read more
