Yesterday, I took the LFCE exam (Linux Foundation Certified Engineer). My LFCS (Linux Foundation Certified SysAdmin) is expiring, and rather than redoing an exam I did two years ago, I decided to study and take the LFCE exam. Although I still need to wait 3 business day for the actual results, I am fairly certain I failed. […]
Author: nillsf
Azure PaaS services connected to your VNET
Using PaaS services comes with many benefits: less infrastructure management, simplified scaling and integrated automation to name a few. Consider spinning up a kubernetes cluster yourself vs spinning up an instance of AKS. I’ve done both and I know which experience I’d prefer every day. To misquote a great movie: “With great power, comes less […]
Ubuntu 18.04 Manually set DNS server to use
This is going to be a short post explaining how to manually set a DNS server in Ubuntu 18.04. #Edit the following configuration file: sudo vi /etc/systemd/resolved.conf #Add the DNS server you want to use: [Resolve] DNS=192.168.48.44 #Write changes and close file (:wq!) #Restart local DNS service sudo systemctl restart systemd-resolved.service #Query your local DNS […]
How I keep costs in check for my Azure subscription
I am very privileged to get an Azure subscription at my disposal. This does however come with some responsibilities, as (even inside of Microsoft) Azure costs are cross-charged. So I try to keep my bill minimal. I wanted to share some of my own best practices to keep costs under control in my personal testing […]
The speed of RAM!
I’ve been playing around with writing some data to RAM lately, and I’ve been hugely impressed. Now, let’s start with the beginning: everybody knows RAM is faster than SSD, which is faster than spinning disk. Why was I so impressed with this test? Well simply, I’ve never considered actually writing files to RAM. I have […]