This is not an exit

Thoughts about nothing

Author: Daniel

Docker / SAP

VSCode devcontainer (part 2)

After setting up podman to be used as a devcontainer in VSCode in the previous blog-post, here are some links for a further deep-dive and next steps: https://benmatselby.dev/post/vscode-dev-containers/ Quick repeat of what is a devcontainer https://mkdev.me/posts/dockerless-part-1-which-tools-to-replace-docker-with-and-why Blog-series about using podman as a docker replacement. https://blogs.sap.com/2022/02/01/boosting-tutorial-ux-with-dev-containers-part-3-containers-into-action/ First steps in the devcontainer based on Create a CAP Application and SAP Fiori UI...

Linux

Welcome to grub… hell

Problem: grub gets stuck after an system-update at “welcome to grub” and uefi-setup is loading… Additional information: This did not only struck me… It’s a broken grub package from 26.08.2022 – FS#75701 – grub 2:2.06.r322.gd9b4638c5-1 issue www.reddit.com/r/linuxmemes/ https://bbs.archlinux.org/viewtopic.php?id=279115 https://bugs.archlinux.org/task/75701#comment210566 Solution: 1) boot from arch usb-stick 2) get information about the system parted -l lsblk 3) perpare the system Mount root...

Container / Linux

Docker – Good to know

I don’t run docker containers locally, but on a docker VM on a remote server. Management is done through Portainer.io which adds a nice GUI to Docker and Kubernetes. However sometimes, the CLI is still the place to be: Useful commands: docker run –rm -it = run/pull image docker ps = list all active containers docker attach = attach to...

Linux

apt vs apt-get

Ever wondered what’s the difference between apt and apt-get: How-To Geek: apt vs. apt-get: What’s the Difference on Linux?

git

Rewriting your git history, removing files permanently

see this great article at https://blog.gitguardian.com/rewriting-git-history-cheatsheet/ Steps: 1) Install newest git version (as git >= 2.22.0 is required) For Ubuntu, this PPA provides the latest stable upstream Git version: add-apt-repository ppa:git-core/ppa apt update; apt install git see: https://git-scm.com/download/linux 2) install git-filter-repo python3 -m pip install –user git-filter-repo 3) Do it – here remove the file git filter-repo –use-base-name –path [FILENAME]...

Server / Workplace

Matrix

not the movie, but the messenger – self-hosted set up and running Infos: https://matrix.org/ also: samuels-blog.de App: https://fluffychat.im/ Contact me @daniel:matrix.daniel-purucker.com

SAP

OData and SAP

Next of my blog-Posts on community.sap.com is up. This time on the various possibilities of using OData within the SAP ecosystem. Howto OData – High level overview Aim is to get an overview of OData and how it can be utilized in the SAP ecosystem. The following topics are covered: 1) What is Odata? 2) How is this useful in...

Workplace

Privacy Tools – Linklist

www.privacytools.io – Learn how to fight mass surveillance with enryption and privacy tools/ https://blog.sethforprivacy.com/posts/privacy-first-steps/ https://diverter.hostyourown.tools/ Citadel Dispatch e49 – digital privacy tools and strategies with @techloreistaken Details: Yet Another Firefox Hardening Guide Pihole Unbound Recursive DNS

Server / Workplace

Wireguard

There (are some affiliate) needs a VPN-server in the near future (roadwarrior… not by choice).As my experiences with Wireguard on the EdgeRouterX were not very successful: I’l give it another try on Proxmox. Here we go… – as Wireguard is now part of the kernel it’s super easy (Virt. Maschine, no Container on Proxmox… due to Kernel!). see: https://www.cyberciti.biz/faq/ubuntu-20-04-set-up-wireguard-vpn-server/ and:...

SAP / Server

HANA 2.0 & Log4J @Home

Monday to Friday: Log4J @Work Weekend: Log4J @Home 🙂 HANA 2.0: HANA XSA log4j CVE-2021-44228 Ubiquity: UniFi Controller security concern (zero-day Log4j exploit) Docker: https://www.docker.com/blog/apache-log4j-2-cve-2021-44228/ Eclipse https://wiki.eclipse.org/Eclipse_and_log4j2_vulnerability_(CVE-2021-44228) Full List Github – @SwitHak SwitHak/20211210-TLP-WHITE_LOG4J.md Other interesting stuff: https://www.cisecurity.org/log4j-zero-day-vulnerability-response/ https://log4jmemes.com/