Bernd Kuhlens portfolio
On this page I summarize my biggest projects of the past (as of January 2022) and my career plans for the future. past: Introducing CDN (Akamai) to wetteronline.de A CDN was a gamechanger for wetteronline.de. We were facing the challenge of a huge variaty…
Please also look at my past and future post.
initializing my check-mk instance i ran into some problems, here are some tips for future reference. Tip1: Sometimes the Full Scan does not provide any data. Here’s how to debug this on the command line (make sure to be the correct cmk user, root…
Here is a tiny yet very important hint, if you deal with let’s say an ALB and Autoscaling groups in AWS. By default ASG use EC2 as their health check. That means as long as the instance and its OS is doing fine, the…
Here’s how to add a new Volume to an existing ec2 and make it available for your Linux OS. After on AWS you attach a volume to an ec2 instance, do the following to insert it into your filesystem lsblk is needed to get…
awk is a great tool for a short hands on command line analysis of apache requests. The correct syntax depends on the LogFormat of course (which for compliance reasons i cannot state here). Today I was looking for requests that take longer than 3…
Today I wanted to find out if a specific URL is cached by Akamai Edge Servers. In my Browser (Chrome) I used a list of Pragmas. But to my surprise this did not work as it used to. Only the last Pragma was used….
Found this on https://www.rosehosting.com/blog/how-to-install-rpm-packages-on-ubuntu/ Shortcut: apt update apt upgrade install alien alien PACKAGE.rpm dpkg -i PACKAGE.deb
For this blog here i have an ec2 instance. To avoid costs, i don’t have a loadbalancer, just an ASG with a desired size of 1 instance. Sometimes the DB-connection can become buggy in which case the easiest automated fix is to simply restart…
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