Simon Fredsted

Come along for an exciting investigation into DNS issues with Kubernetes where we in the end we discover the antagonist … systemd!

How Internet browsers changed everything about the applications on your computer, and where we go from here.

Everyone who’s logged in to a server knows htop. But few know all of its magnificent secrets.

byobu brings text-mode computing into the 21st century with windows and tabs. And now, also, mouse support.

In 2016, I wrote the utility Webhook.site for testing webhooks. But what is a webhook anyway? And why are they so important for applications on the Internet?

I attended Kubecon/CloudNative Con last week, and it was a great way to see how various large and small companies – all 4000+ participants – are using Kubernetes in their systems architecture, what problems they’re having and how they’re solving them. Interestingly enough, a lot of the issues we’ve been having at work are the […]

These days, enterprises host thousands of servers with their cloud providers. But how do they keep track of them all? And what if you could define your whole infrastructure by writing it down like a recipe?

At WWDC 2016, Apple unveiled a brand new font which was called San Francisco. The font went on to become the default font in macOS and iOS, replacing Helvetica (which replaced Lucida Sans). On watchOS, a special Compact variant of San Francisco, was used. Later, Apple introduced yet another variant, a monospaced variant, which I think simply […]

ElasticSearch is a popular search engine and database that’s being used in applications where search and analytics is important. It’s been used as a primary database in such applications as HipChat, storing billions of messages while making them searchable. While being very feature-complete for use cases like that, being new (compared to other popular datastores like MySQL), ElasticSearch […]

As a software developer, I not only work with lots of different windows on my computer screen, but with lots of different sets of windows. Not only am I dependent on windows being in different places, but in different sizes. As such, I need to manage all these windows in some way. For example, I often need to […]

Extending a logical volume group usually needs to be done when the size of a VMware disk has been increased for a Linux VM. When resizing a disk, the volume isn’t extended automatically, so you need to extend the logical volume in the VM’s volume group. This article assumes that: You have a LVM volume group with a logical […]

If you’re in need of a simple computer to drive an infoscreen, which usually just consists of showing a website in fullscreen, Raspberry Pi computers are a great choice. They’re cheap, newer versions have WiFi and HDMI output, and they’re small – so they’re easy to mount on the back of a TV. Even better, most […]

Safari uses a strikethrough in showing invalid properties in style sheets. This is not documented, and there’s no tooltips to explain this multicolored line. There are 2 known different strikethroughs, red and black. Styles getting overridden by other styles are striked out in black:   But when it’s an invalid or supported property, or the value can’t […]

About a year ago, I developed a WordPress extension called WP Login Attempt Log. All it does is log every incorrect login attempt to your WordPress page and display some graphics and a way to search the logs. It logs the username, the password, the IP address and also the user agent, e.g. the browser […]

In my last post I introduced you to the release of my personal Roundcube skin. It’s been a few months, and in the meantime a new version of Roundcube arrived bringing changes to the way skins are handled. As it turns out, my skin wasn’t compatible with the new version. Therefore I’ve updated the skin – […]

Excited to watch Apple’s new innovative products, millions of people tuned in to the live webcast where Tim Cook revealed iPhone 6, Apple Pay and Apple Watch. As someone following the live stream while it happened, monitoring twitter feeds live chats during the event, one thing became clear to me immediately as the stream started […]

The Zyxel WRE2205 (rebranded Edimax EW-7303APN V2) is a plug-formed wireless extender. What’s interesting to me about this device is its extremely small size. Many of my standard power bricks like are larger than this unit — but they don’t contain a small Linux minicomputer and advanced wireless functionality. Trying out the WRE2205 for its intended purpose, I discovered that […]

On Linux, to view the progress of the file/disk copy tool dd, you could send the USR1 signal to get a progress output. This apparently doesn’t work on Apple’s OS. However, with Activity Monitor, it’s easy to see the progress of dd when, for example, copying an operating system image onto a USB (which can […]

Recently a few users on a Virtualmin server have experienced issues with slow FTP logins. It took a long time to login and often wouldn’t log in at all. To correect this, first log on to the Webmin interface on http://yourserver:10000. At the top left, click Webmin. A bit further down, under Servers, select ProFTPD Server. […]

Password storage is incredibly important to me. Since I began seeing friends and others get their identities and online lives taken away because of reusing and/or using weak passwords, I started taking password security extremely seriously. When I chose the utility to use for this, I had a couple basic requirements. It had to be […]