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…
For our Ethereum mining rig a coworker of mine wrote a systemd template unit so it is relatively easy to configure which graphic card in the rig is assigned to whom. For each of the GPU owners exist a custom configuration file /etc/sysconfig/ethminer-$USERNAME (/etc/sysconfig/ethminer-ckl in my case). The file contains Read more…