Wilfried
Seifert
IT Systems Engineer /
Certified Network Administrator
Invest your time and efforts on running your business.
Never say never. Make the impossible possible.
- Trusted
- Experienced
- Professional
OverVIEW
What I do
Working with Computer over 39 years; and work with Linux over 17 years;
now for over 6 Years as administrative Systems Engineer
in a Hardware Manufacturing Company / Germany
01.
Embedded Electronics
Since my childhood I have been working
on different electronic components,
which I still enjoy, it`s my passion.
For a long time I activily engaged with
Internet of Things especially
LP-WAN / LoRa Technologies and
embedded Devs (x64/ARM/Atmel/IPC)
02.
Deployment / Rollouts
In my company I am responsible for the administrative Rollout of larger machine Pools for our Customers (~ over 1000 machines)
and controlling the Software-Deployment.
Further I help with the management and coordination of Nodes, Applications and Services.
03.
Linux
After Windows frustrated me in 2006,
I switched completly to Linux which still
fascinates me today. The OpenSource
Thought was very important to me.
In my Job as Systems Engineer I can prove
my administrative Skills as Teamplayer
every Day; it`s my AllTime favourite.
.. working here Hand in Hand with
Firmware Developers from other Companies.
About me
Skills
Continuing Education and Experience Chart
71%
Always On Time
Computer Technology Development -- it`s my life.
Hard Working
like to think about Customer problems and possible Solutions.
24/7 Availability
That`s right, everything revolves around Technology for me 24/7.
Publications
2023: Softwaredefined LED Control with TK Edge4L
2023: OPNSense ZFS Mirror Installation
2023: Instruction for easy image creation with Clonezilla
2022: Ubuntu 20.04 Serial Install
2021: IoT / LoRa WAN DevInstall
2021: LoRa WAN and TTS/TTN
2021: Clonezilla HowTo and tty
2021: DIY/TL without API MS Teams
2021: Ubuntu 4G/LTE via Shell
2020: SDWAN Webinar
2019: HowTo DCF77 Timesync Debian
2019: Work with GPIO Connectors
2019: Productronica 2019 / Magazine
2018: Powermanagement Linux
2018: Disable Password Linux/WIN
2018: Clonezilla : Reimaging to smaller Devices
2018: Mastering LTE under Debian via CLI
2017: Linux Logwatch Installation
2017: Hardwaretools lshw / inxi
2017: Vtop Tool / Debian
-
Kernel Internals Linux Training Course
13.-14.12.2023
-
OPNSense Training Course
OPNSense Quickstart
& Advanced Course
12.-16.06.2023 -
Python Training Course
Python Training Course
Python Quickstart & Advanced Coding15.-19.08.2022
-
ASQF CPIoT
CPIoT Professional Exam Foundation Level
22.04.2022 -
CPIoT Training Course
05.-07.04.2022 (sepp.med)
-
LPIC 303-300
Certified Linux Professional
16.10.2021
-
Linux Training Course
19-23.07.2021
-
LPIC-303 - 200
Certified Linux Professional
07.09.2018 -
LPIC 202
Certified Linux Engineer
16.04.2016 -
SUSE CerT. LINUX PROFESSIONAL 2016
Novell Suse Certified Linux Administrator
Enterprise Server 12 CLA
03.02.2016 -
SUSE Cert. Linux Administrator 2015
Novell SUSE Certified Enterprise Server 11 CLA
03.02.2016 -
LPIC 201
Certified Linux Engineer
13.06.2015 -
LPIC 102
Certified Linux Administrator
22.03.2014 -
LPIC 101
Certified Linux Administrator
24.03.2012 -
Education / Exam
IT Specialist/Systems Integration Administration
27.01.2011
Visited Events
Training Kernel Internals for Linux Admins
Innsbruck/sigma star 13.-14.12.2023
- Overview major subsystems in Linux (interacting processes)
- Deep dive storage,network,CPU scheduling,security
- Manage Container subsystems
- Diffs between KernelVers Linux Debian/Ubuntu/RHEL/SLES)
- Deep dive /proc, /sys, and debugfs interfaces
- Kernel tracing using perf, ftrace, bpftrace
- Key Kernel functions for debugging issues
Productronica 2023 / EC Network and Industry Association
Munich 14.11-17.11.2023
- insight latests trends in practice oriented forums
- visit live demonstrations Industry/IoT/AI
Training OPNSense QuickStart & Advanced Skills
Essen/Linuxhotel 12.-16.06.2023
- Installation / Physical, vritual)
- Handling (Shell/WebGui)
- Setup WAN/LAN/OPT Devs
- Hardening OPNSense
- Outbound Proxy / Blacklists
- DNS-Proxy / Blacklists
- NAT-Handling/Port Forwarding
- Firewall Rulesets
- Network Shaping (QoS)
- Monitoring
- HA / incl. Config-Sync
- HAProxy (inbound)
- IDS / IPS Suricata
Training Python Coding Course
Essen / Linuxhotel 15.-19.08.2022
- Generators / Subroutines / Iterators
- Parameter Passing / Recursion and conversion to iteration
- RegExpressions / WordProcessing
- Object Oriented Programming
- ternary operator
- Exceptions
- modules
- Database connection with Python
- Logical and arithmetic operators
Training CPIoT Course
Erlangen/Röttenbach 05.-07.04.2022
- Motivation
- Constructive Quality Engineering – Quality Attributes
- Constructive Quality Engineering – IoT Architecture
- Constructive QE – Processes and Methods
- Analytical QE (including Test)
- Lifecycle
- Guidelines for assuring the quality / security of complex IoT solutions
Training Linux Refreshing Exercises
Essen / Linuxhotel 19.-23.07.2021
- DNS/BIND/MAIL
- Network Troubleshooting
Training OPNsense Workshop
- with MAX IT (by Thomas Krenn AG) 30.05.2018
Linuxtag 2018 @ Hochschule Augsburg University of Applied Science
- Secure Networks PfSense FreeBSD
- SSH Tunnels & X2go
- Email Encryption Gateway Cipher Mail MTA`s (PGP/SMIME/PDF)
- Docker – create Scalable Setups
- SideChannel Attacks (Spectre- / Meltdown vulnerabilities)
Linuxtag 2016 @ Hochschule Augsburg University of Applied Science
- Open Source IDS/IP Tools (Suricata/Tripwire
- Border Gateway Protokoll (BGP) / OSPF)
Linuxtag 2015 @ University Tübingen Department of Computer Science
- TCP Stealth – Port Knocking
- Big Data Analytics / Hardware Hacking
- Working with Kali/Wireshark
Linuxtag 2015 @ Hochschule Augsburg University of Applied Science
- DNSSEC
- Development Progress in Linux Kernel
- YubiKey Two-Factor-AuthentificationLinuxtag 2014 @ Hochschule Augsburg University of Applied Science
- OwnCloud
- Lessons with Wireshark
- Collaboration with Etherpad
- OpenStack
Linuxtag 2012 @ Hochschule Augsburg University of Applied Science
- Data Recovery / Forensic Tools
- Encrypted Communication & Backup
- DNS Unbound / DNSSEC-Trigger
Heraklit: