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Cases

Now that you now a bit better who I am, here is a short summary of my experiences, feel free to click on any of the images to get a detailed version for each case.

You should contact me so we can discuss your problem.

readybox.dk

readybox.dk

  • Debian
  • Security
  • Apache / MySQL / DNS
  • Intrusion tests

smtp.dk

  • Anti Spam
  • Optimization
  • Python
  • Postfix

logo outsideren

  • System Architecture
  • Linux
  • Collaborative Tools
  • Hosting and Cloud technology

logo thales

  • System architecture
  • Linux administration
  • Networking
  • Shell

uperto.com

  • Unattended
  • C++ Livrary
  • Windows Installer
  • Shell

logo anevia

  • C++
  • Optimization
  • Encryption
  • Embedded

Here, you’ll find the different projects I’ve been involved in in the past few years.

Kernel Development for ReadyBox.dk

readybox.dk

Tags: kernel, linux, c, embedded, cross compilation, debian

Readybox is the next generation of cloud based service providers. It provide from simple and efficient backup, to email and hosting services or phone service to professionals. Everything is based on the best cloud services.

Key achievements :

  • Linux Kernel patches to support a new Sub Architecture.
    Published in official linux kernel. (see announcement)
  • Python development to provide Cloud Services
  • OpenVPN with Asterisk VOiP services
  • Development of a new authentication middleware in django
  • implemented a high performing statistic tool using Nagios data to ease the every day life of readybox maintenance team.

And guess what, I got the authorization to publish part of the solution.

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Security audit for kultunaut.dk

kultunaut.dk

Tags: kernel, linux, security, server, hosting, intrusion-test

kultunaut.dk is one of the most visited website per month in Denmark.
The website contains more than 10,000 articles and many database access. The architecture is based on redundancy and high availability.

The mission was :

  • to audit 5 servers that belong to kultunaut.dk and find all possible security issue.
  • to fix any security problem encountered.

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Optimization and AntiSpam system for smtp.dk

smtp.dk
Tags: spamassassin, python, optimization, rbl, greylisting, database, reporting

smtp.dk / mysmtp.eu is the next generation smtp service to help companies sending large emails to simple to extremely large mailing list.
I have

  • implemented a powerful and autolearning spamfilter (using rbl, greylising, spamassassin, …)
  • optimize their SMTP mail process by 60%
    by analyzing their system and find where their implementation had
    some problem treating more than 100,000 emails a day.

Now, the system is nearly the same by way faster.

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Complete IT refactory of OutSideren

logo outsideren
Tags: system architecture, linux, samba, internet hosting, opensource, debian

Outsideren is a psychatric newspaper based on a monthly edition. They have an intensive workflow and collaborate with many authors, publisher, printing services.

They wanted to have a collaborative IT system that works all the time, from anywhere while maintenance is a controlled cost.

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On site Linux and Network Expert at Thales Air Systems

logo thales
Tags: system architecture, linux administration, cisco, spanning-tree, perl, awk, bash

Part of the Aerospace and Defense industry, Thales provides plateform in critical environment such as air traffic control. Thales and Naviair collaborates to provide the safest air space in scandinavia.

I provided Thales

  • an extensive Linux knowledge (including kernel configuration)
  • Cisco networking expertise
  • Firewall and Network protocol debugging

The project includes 200 servers and 34 Switch routers connected to the Nationnal Danish. The system is now Fault Tolerant and highly available.

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Linux and Open Source consulting at Uperto

uperto.com

Tags: windows XP, Unattended, bash, perl

For on of their customer, UPERTO need a person who could provide solutions to problems encountered in a scientific environment. Where the maximum downtime allowed is 0.1%.

Key achievements :

  • I have implemented and maintained their Automated Windows Installation
  • They can now install up to 100 Windows stations at the same time from a single master image.
  • I have developped in c++ a library to optimize the Mathematics calculation for electric consumption prediction.

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GNU/Linux Developper at Anevia

logo anevia

Tags: Linux, C++, encryption, optimization, embedded

Anevia provide high performance video streamer and provide to many Internet Service provider their streaming solution. They also equipped many french radio station to multicast video stream.

Key achievements :

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