My web site contains great content however is not fully optimized for speed. From time to time, I have to deal with problems caused by the cache plugin. Therefore, caching is sometimes even deactivated. Serving content slow is still better than not serving content at all. Another performance hit is Read more…
Network Manager Network Manager is a requirement from CRC for handling network. After installing CentOS install Network Manager. yum install NetworkManager … To see if NetworkManager is able to handle the interfaces the cli can be used: nmcli nmtui DNS resolution dnsmasq Configure and install dnsmasq. yum install dnsmasq Edit Read more…
Red Hat CRC is intended to be run on a laptop locally. That includes the web access to the UI. For a local lab setup where a separate computer is used to run software, this is not the best usage scenario. Good news is that it is possible and you Read more…
Node-RED is a tool that allows to develop flow-based apps. Users can create apps using visual programming, making it easy for everyone to create apps. Focus is on IoT based solutions. IBM released it under an open source license already in 2016. Therefore, developing apps is not only easy, but Read more…
Red Hat CRC is installed by running a pre-configured VM. In case the OpenShift 4 installation is not working as expected, like no images can be loaded from the internet, a deeper validation might be needed. For instance, to see if the VM can connect to the internet, you’d need Read more…
Red Hat CodeReady Containers allows to run a local OpenShift 4 environment locally on a Laptop. While it can be installed on a wide range of systems, one of the better choices is Red Hat Linux or a similar system like CentOS. Preparations Check if some preparations need to be Read more…
Event information Location: ReCAP 2021, online Date: 19.10.2019 Site: Event website Title: CAP outside SAP Presentation: PDF Additional information CAP is open in terms of its architecture. It can run on any platform that meets the runtime requirements like Node.js. For the database, an open source driver cds-pg is available. Read more…
Installing Docker on a Raspberry Pi is as easy as following the official Docker installation guide. This document contains the steps to install Docker in a wide range of Debian based systems, including Raspbian. As the steps are in one document you have to jump to different sections. To make Read more…
Problem Apache is configured as a reverse proxy. The proxied backend is accessed via HTTPS. Accessing the proxied URL is resulting in an error message: proxy error. Apache log: AH00898: Error during SSL Handshake with remote server returned by /url Browser: Root cause The apache configuration is erroneous. Apache cannot Read more…
Nested virtualization allows to run a hypervisor inside a VM. You have a VM running in Proxmox, and that VM is running another VM. The guest VM is the host for another guest VM: Host -> VM => runs another VM. The Proxmox Wiki contains some more information about the Read more…