Info
All kind of random solutions and optimizations to different environments.
Email: contact2018 @ domain.tld
Familiar technologies:
– Linux distributions: CentOS / RHEL / Ubuntu / Debian
– Others: Solaris, SmartOS
– Virtualization: Xen, KVM, OnApp, OpenStack, OpenNebula
– LAMP-stack (Linux, Apache, MySQL, PHP)
– LNMP-stack (Linux, Nginx, MariaDB, PHP-FPM)
– Others: Haproxy, BIND, Dovecot, Postfix, Amavisd, Galera
– Dell EqualLogic, HP MSA
Projects:
CDN (done, in use at http://apina.biz)
Full IPv6 compliance (done, all services IPv6 enabled)
Cloud platform (under construction, will be released at https://www.unable.fi)
Latest posts:
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Sierra Wireless EM7345 on Debian Linux
Hardware: Lenovo ThinkPad W550s with Sierra Wireless EM7345 Software: Debian 10 (buster/testing) Operator: Sonera (Finland) After Debian installation the modem…Continue reading »
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Getting more speed out of OpenWRT-enabled TL-WR1043NDv2
Basic setup and debug 1Gbps/100Mbps -cable connection, router, couple of cat6 cables, laptop & speedtest.net (note: speedtest.net might not give…Continue reading »
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Raspberry Pi as a NFC-based Access Control System
Suomenkielinen versio täällä. Why? One day I just needed an access control system and reservation calendar to a common use…Continue reading »
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Raspberry Pi NFC-pohjaisena kulunvalvontajärjestelmänä
English version here. Miksi? Tulipa eräänä päivänä tarvetta toteuttaa kulunvalvonta ja varauskalenteri erääseen yhteiskäytössä olevaan saunatilaan, missä oli ovenkarmissa jo…Continue reading »
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Raspberry Pi as a remote KVM
I had a classic problem, old server without a remote KVM capabilities - if it goes down, no other chances…Continue reading »
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Sysbench OLTP: MariaDB 10.1 vs. MariaDB 10.1 Galera
Test platform: UpCloud VPS (10vCPU / 32GB) with 50GB MAXIOPS Different setups compared in this benchmark (only single run): MariaDB…Continue reading »
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Qemu KVM: -cpu qemu64 vs. -cpu host
Just a quick CPU benchmark with Phoronix test suite, comparing -cpu qemu64 and -cpu host (on Xeon E3-1241v3, 4vCPU/4GB virtuals).…Continue reading »
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IPv6 RTNETLINK answers: Cannot allocate memory
If you get hit with "RTNETLINK answers: Cannot allocate memory" when trying to add IPv6 default gateway back after losing…Continue reading »
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Happy IPv6 day!
We have a national IPv6 day today (9.6.2015) in Finland, and this time also the largest ISP:s in Finland are…Continue reading »
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DNA IPv6 short how-to
Finnish ISP DNA revealed their IPv6 -support for cable networks, but just listed "these devices are compatible" without more technical…Continue reading »