Welcome

Welcome to lerlacher.de!

I am a German Computer Scientist and Hacker - learn more about me at About Me.

I have been working as a Computer Scientist for ten years. You can read about a selection of my many successful projects spanning diverse areas within software development and systems engineering at Projects.

As a free computer scientist I am happy to support you or your team members in any project, for example if you need professional external support with one of the following problems:

• Dev-Ops / Infrastructure services
  • Upgrade of Legacy Infrastructure Why?
  • Introduction of central configuration management Why?
  • Development and/or maintenance of infrastructure services Why?
  • Evaluation and improvement of IT infrastructure security Why?
  • In-Housing of infrastructure services (e.g. E-Mail) Why?
• Open-Source / Free Software Development
  • Maintenance of Open-Source components in your IT tech stack Why?
  • Development Contribution to Open-Source software Why?
  • Management of Open-Source software projects Why?
• Web Services / Web Applications / Cloud Services
  • Maintenance of Services in In-House Cloud / Hybrid Cloud / SaaS Why?
  • Configuration Management for Web Services Why?
  • Management of In-House Cloud / Clustering Why?
• Process and Workflow Management
  • Helpdesk procedures Why?
  • Testing, staging, deployment workflows Why?
  • Infrastructure management and configuration procedures Why?

I can help you if…

• Your employees are spending more time fighting fires and working trouble tickets than they can spend making productive improvements to your IT services
• It is impossible to keep your systems updated with security patches because nobody knows if they will still work afterwards
• Your services contain more technical debt than technology

I work remotely, avoiding overhead of travel costs, on-site meetings, and physical access to your infrastructure.

You can find my contact information at Contact.

Posts

• Home Air Monitoring Experiments April 26, 2023 (diy, aqi, airgradient, raspberrypi, linux)
• SSH Reverse Tunnel December 23, 2017 (ssh)
• Standing up your own Have-I-Been-Pwned Passwords Server October 26, 2017 (hibp, linux, python, db, postgres)
• Lua doesn’t like you, or, a table is not always a table May 2, 2017 (lua, maygodhavemercy)
• How to make an ubuntu repo mirror that actually works January 25, 2017 (ubuntu, linux, bash)
• Archlinux Package Recovery January 4, 2017 (archlinux, linux, kernel, terminal)
• How to install OSQA November 24, 2016 (python, django, maygodhavemercy, ubuntu)
• No-IP.com Dynamic DNS Updater with curl November 23, 2016 (embedded linux)
• The Dell Latitude UEFI Adventure November 7, 2015 (uefi, windows, archlinux, x64)
• PyPI package signing and upload with twine April 28, 2015 (python, gpg)
• LaTeX Notes April 22, 2015 (LaTeX)
• Cyanogenmod on HTC Desire April 10, 2015 (Phone)
• Catch-All virtual mail domain with postfix August 26, 2014 (postfix, email)
• Enabling tests on a production gitlab install August 18, 2014 (gitlab)
• Arch linux cross-compilation adventures April 23, 2014 (archlinux, kernel, x64)
• Getting LPCExpresso 7 to run on arch linux 64-bit April 12, 2014 (archlinux, lpcexpresso, embedded, lib32)
• N900 terminal and mosh setup April 11, 2014 (n900, mosh, terminal, bash)
• Emergency private key tutorial April 11, 2014 (digitalocean, ssh)
• Skype iptables mollification in arch April 8, 2014 (skype, iptables, archlinux)
• Etherpad db migration October 26, 2013 (sqlite, postgres, etherpad)
• Extract private key from pkcs12 file October 14, 2013 (ssl)
• My E-Mail setup September 29, 2013 (email, postfix, digitalocean)

Archives