Info
All kind of random solutions and optimizations to different environments.
Contact: contact@<domain>.<tld>
Familiar technologies:
– OS: CentOS / RHEL / Ubuntu / Debian / Solaris / SmartOS
– Virtualization: Xen, KVM, OnApp, OpenStack, OpenNebula
– L(A/N)MP-stack (Linux, Apache/Nginx, MariaDB/MySQL, PHP(-FPM))
– Others: Haproxy, BIND, Dovecot, Postfix, Amavisd, Galera
– Dell EqualLogic, HP MSA
– Electrical engineering
Projects:
– CDN
– Full IPv6 compliance
– Private cloud platform
– Photovoltaic+Energy storage systems
Latest posts:
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BESS and Photovoltaics
This has been bubbling under a long time, f.ex one bachelors degree acquired and enough practice to confidently design the…Continue reading »
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Mitigating CVE-2021-4034 (policykit pkexec) vulnerability on CentOS 6
CentOS 6 has been end of life since 30.11.2020 - do not use it. Well, you're still reading this, so…Continue reading »
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Mitigating log4j vulnerabilities on EOL UniFi(-video) services
Official fixes for UniFi Network Application came in 6.5.54 (CVE-2021-44228) & 6.5.55 (CVE-2021-45046).UniFi Video is EOL and will not receive…Continue reading »
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Amateurs journey to RC-cars – part 7
Recap (part 6) ION broke down more (driveshaft, diff cup inside differential) and requires even more spare parts (pinion gear,…Continue reading »
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Amateurs journey to RC-cars – part 6
Recap (part 5) Converted ION temporarily to RWD and debugged A979-A LiPo -compatibility and original LiFe-battery-setup. Daily disappointment Monday -…Continue reading »
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Amateurs journey to RC-cars – part 5
Recap (part 4) Got wrong battery for ION, supercharged A979 with a new battery, got worried about it, crashed ION…Continue reading »
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Amateurs journey to RC-cars – part 4
Recap (part 3) Cars arrived, enjoyed how they handled, disappointed by battery runtime, decided to get spare batteries and a…Continue reading »
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Amateurs journey to RC-cars – part 3
Recap (part 2) Figure out a store that has availability for the car and parts and find out a car…Continue reading »
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Amateurs journey to RC-cars – part 2
Recap (part 1) 1/16-1/18 sized monster truck/truggy/buggy to be run on easy off-road-terrain (gravel/grass) that has spare parts available (fast)…Continue reading »
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Amateurs journey to RC-cars – part 1
What to do when you have a too much time and a need to get your thoughts somewhere else, especially…Continue reading »