Most of my articles are written in English but this topic is more or less focussed on German businesses so I’ll do this write-up in German. Für das WordPress-Plug-in Next Active Directory Integration bieten wir als virtuelle Dienstleistung eine Support-Lizenz in diversen Stufen an. Die Bezahlung der Dienstleistung erfolgt dabei Read more…
We are currently in the process of migrating our alerting infrastructure from OMD to Atlassian’s OpsGenie. Most of the features (SMS, phone call etc.) worked out of the box but we struggled with pushing alerts back into our on-premises Jira instance. Enable logging of POST requests OpsGenie does not provide Read more…
I am currently working on a Jenkins declarative pipeline to connect the Jenkins builds with Kubernetes, Helm and Netflix Spinnaker. One of TODOs has been to deploy different artifacts (e.g. a helm chart my-chart-0.0.1.tar.gz) to an AWS S3-compatible bucket inside a Minio installation with help of pipeline-aws-plugin. When running my Read more…
Just a quick reminder how to run a Spring Boot JAR (or any other self JAR executable) with SELinux enabled: To make this persistent you have to use the bin_exec_t type as java_exec_t is just an alias: To let systemd start this service, you have to create a systemd unit Read more…
Today I struggled an hour or so to access a AWS hosted web application through IPv6. Just follow these rules: Get an IPv6 CIDR for your VPC: Go to VPC > Your VPCs > ${YOUR_VPC} > Edit CIDRs > Add IPv6 CIDR. The IPv6 CIDR is automatically choosen by AWS. Read more…
One of the common required tasks for an application using a persistence store is to initialize the underlying database with basic data sets. Most of the time this contains something like admin users or default roles. Setting the stage To give a proper example, we have the database table role Read more…
After migrating my domain to AWS Route 53 I finally transferred my website to a new Uberspace host which supports Let’s Encrypt. You should be automatically redirected to HTTPS when visiting www.schakko.de. The whole procedure took 2 hours, including setting up the new Uberspace, importing the existing databases and changing Read more…
This is a blog post which literally drove me crazy for a week. After building our mining rig I experienced a bad WiFi connection with high pings, periodically occuring every 30 seconds. Just scroll down to see my – fairly simple – solution. Getting into the mining business A few Read more…
Vacation time means administration time. I am one of these Uberspace customers whose domain has been registered and managed not by an external DNS registrar but by Uberspace (or Jonas Pasche) itself. Since a few years Uberspace has not been providing this service. Actually this was not a problem and everything Read more…
A few days ago I switched from ethminer to Claymore’s Dual Ethereum Miner because ethminer has problems running multiple instances with multiple GPUs. My blog post How to run same ethminer instance with multiple GPUs is still valid but ethminer simply can’t handle two or more parallel running instances. In Read more…