online since 1994 https://heikkisiltala.net/wiki/ 2026-04-04T23:23:04+00:00 https://heikkisiltala.net/wiki/ https://heikkisiltala.net/wiki/_media/wiki/logo.png text/html 2023-02-24T21:55:04+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/catz/service_management?rev=1677275704&do=diff Catz service management Latest update 2022-07-16. This page contains short process descriptions, notes and checks for Catz application engine management and for version upgrades. This page is provided as public to show an example how a Perl- and Mojolicious-based application can be managed. This also gives me online access to the notes. text/html 2023-02-26T17:32:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/catz/system_description?rev=1677432730&do=diff About the design and implementation of Catz Written in 2011 so may contain outdated information. The key attributes * The service is stateless: the HTTP GET request's URL identifies the resource requested. There are no cookies nor sessions. * The public access is dynamic but read only. All data is loaded offline by a loader sumsystem. text/html 2023-10-25T16:21:32+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_ax_41_2023?rev=1698250892&do=diff Server benchmark 2023: Hetzner AX41 Dedicated Server * 2023 * AMD Ryzen 5 3600 Hexa-Core “Matisse” (Zen2) * 64 GB DDR4 RAM * The specification is 2 * 2 TB SATA 6 Gb/s Enterprise HDD; 7200 rpm (Software-RAID 1) * Delivered with 2 * 6 TB SATA 6 Gb/s Enterprise HDD text/html 2023-02-20T23:37:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/postgresql_vs_sqlite?rev=1676936233&do=diff PostgreSQL vs SQLite Written in 2011. If you need a very fast relational database for a limited amount of data (up to some gigabytes) and don't need scalability on concurrent writes then SQLite is for you. It is a cleverly designed ultra-lightweight ACID compliant relational database that requires no administration. text/html 2023-10-25T15:42:08+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_vx_18_vps?rev=1698248528&do=diff Server benchmark 2014: Hetzner VX 18 VPS * 2014 * Hetzner VX 18 VPS * Dual Core * 4 GB RAM * 100 GB HD on some sort of RAID * no backup space * 6 TB traffic/mo * <https://www.hetzner.de/> * Debian 7.7 64 bit * Tests run 2014-12-10 UnixBench 5.1.3 ./Run ======================================================================== BYTE UNIX Benchmarks (Version 5.1.3) System: **********: GNU/Linux OS: GNU/Linux -- 3.2.0-4-amd64 -- #1 SMP Debian 3.2.63-2+deb7u1 Machin… text/html 2023-02-22T22:37:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/compact_cameras/nytech_nd_4020?rev=1677105451&do=diff Nytech ND-4020 This review and in-depth description was created 2004 - 2007. The latest update was done in July 2015. See for more details. See some photos shot with Nytech ND-4020! Nytech ND-4020 was my first digital camera. I purchased it June 2004 and used it very actively for three months. During that time I shot about 5 000 photos with it. The enthusiasm of photography spread like a fire and so the camera got replaced with text/html 2023-02-24T21:59:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/inside_sotkanet?rev=1677275965&do=diff Inside SOTKAnet This article was written in 2005. SOTKAnet indicator bank is a public accessible web information service that publishes detailed information on well-being and health in Finland. SOTKAnet was launched by STAKES, the National Research and Development Centre for Welfare and Health, on Monday 14th March 2005 at text/html 2023-02-22T22:37:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/dedicated_or_virtual_server?rev=1677105451&do=diff A dedicated server or a virtual server These are my notes on choosing between Hetzner's Dedicated Server EQ 4 and Virtual Private Server VQ 19. This was written in 2011 so this may not reflect the current similarities and differences between the two server types. text/html 2023-09-22T21:31:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/one_disk_nas?rev=1695418296&do=diff Creating a small NAS server based on OpenMediaVault The initial version written 2020-07-15. Latest update 2020-08-01. See a separate page for long-term impressions. My goal was to create a small and simple network attached storage (NAS) server to serve as a file sharing server between devices connected to home network. The performance requirements for this system were low. I wanted to file storage to be encrypted. text/html 2023-02-17T21:33:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/dokuwiki_notes_and_tricks?rev=1676669608&do=diff Dokuwiki notes and tricks Latest update 2023-02-17. My preferred template My preferred DokuWiki template is Bootstrap3. This site is using theme Cosmo. I also like United theme a lot. Before switching to Bootstrap3 I used to use Typowiki template. Automatic UI language selection based on URL * Installed languages: en, fi text/html 2023-02-23T23:54:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/the_zeus_malware_incident?rev=1677196489&do=diff The ZeuS malware incident This report was written in 2014, latest update 2017-10-22. Summary in Finnish. My Windows 7 desktop computer was hit by ZeuS malware or some variant of it. It wasn't detected by virus scanners and so it lived on the computer at least over a month, maybe much longer. Here is the full story. text/html 2023-02-24T21:57:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/music/ingo_weidner_analog_vs_digital_waldorf_blofeld?rev=1677275869&do=diff Ingo Weidner's Analog vs. Digital Soundset for Waldorf Blofeld Written in 2014. * The soundset reviewed: Ingo Weidner's “Analog vs. Digital” Soundset for Waldorf Blofeld synthesizer * Sounds: 128 (one Blofeld bank) * Price: 30 € including VAT text/html 2023-10-25T15:51:44+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_ax_41_2020?rev=1698249104&do=diff Server benchmark 2020: Hetzner AX41 Dedicated Server 2020 * 2020 * AMD Ryzen 5 3600 Hexa-Core Simultaneous Multithreading * 64 GB DDR4 RAM * 2 x 2 TB SATA Enterprise HDD (software-RAID 1) * Connection 1 Gbit/s-Port * Guaranteed Bandwidth 1 GBit/s text/html 2023-10-25T15:42:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_cpx_21_2020?rev=1698248555&do=diff Server benchmark 2020: Hetzner CPX21 Cloud Server * 2020 * 3 vCPU * 4 GB RAM * 80 GB Local NVMe SSD * 20 TB Traffic * 0.014 €/h * 8.56 €/mo * <https://www.hetzner.de/> * Debian 10.4 64 bit * Tests run 2020-05-27 Full test ======================================================================== BYTE UNIX Benchmarks (Version 5.1.3) System: ******: GNU/Linux OS: GNU/Linux -- 4.19.0-8-amd64 -- #1 SMP Debian 4.19.98-1+deb10u1 (2020-04-27) Machine: x86_64 (unknown)… text/html 2023-10-25T15:45:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_cx_21?rev=1698248747&do=diff Server benchmark 2019: Hetzner CX21 Cloud Server * 2019 * 2 vCPU * 4 GB RAM * 40 GB Local NVMe SSD * 20 TB Traffic * <https://www.hetzner.de/> * Debian 10.1 64 bit * Tests run 2019-09-22 Full test ======================================================================== BYTE UNIX Benchmarks (Version 5.1.3) System: *******: GNU/Linux OS: GNU/Linux -- 4.19.0-5-amd64 -- #1 SMP Debian 4.19.37-5+deb10u2 (2019-08-08) Machine: x86_64 (unknown) Language: en_US.utf8 (ch… text/html 2024-07-14T19:56:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_cx_32?rev=1720986985&do=diff Server benchmark 2024: Hetzner CX32 Cloud Server * 2024 * 4 vCPU Intel * 8 GB RAM * 80 GB * 20 TB Traffic * 7.81 €/mo * <https://www.hetzner.de/> * Ubuntu 24.04 64 bit * Tests run 2024-07-12 Full test ======================================================================== BYTE UNIX Benchmarks (Version 5.1.3) System: *********: GNU/Linux OS: GNU/Linux -- 6.8.0-38-generic -- #38-Ubuntu SMP PREEMPT_DYNAMIC Fri Jun 7 15:25:01 UTC 2024 Machine: x86_64 (x86_64) … text/html 2023-10-25T15:44:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_ex_40?rev=1698248656&do=diff Server benchmark 2014: Hetzner EX 40 Dedicated Server * 2014 * Intel® Core™ i7-4770 Quadcore Haswell incl. Hyper-Threading Technology * 32 GB DDR3 RAM * Hard Drives 2 x 2 TB SATA 6 Gb/s 7200 rpm (Software-RAID 1) Class Enterprise * Connection 1 Gbit/s-Port text/html 2023-10-25T15:44:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_ex_40_ssd?rev=1698248645&do=diff Server benchmark 2013: Hetzner EX 40 SSD Dedicated Server * 2013 * Intel® Core™ i7-4770 Quadcore Haswell incl. Hyper-Threading Technology * 32 GB DDR3 RAM * Hard Drives 2 x 240 GB SATA 6 Gb/s SSD (Software-RAID 1) * Connection 1 Gbit/s-Port text/html 2023-10-25T15:43:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_ex_41_ssd?rev=1698248627&do=diff Server benchmark 2018: Hetzner EX41-SSD Dedicated Server * 2018 * Intel® Core™ i7-7700 Quadcore Haswell incl. Hyper-Threading Technology * 32 GB RAM * Hard Drives 2 x 500 GB SSD (Software-RAID 1) * Backup Space 100 GB * <https://www.hetzner.de/> * Debian 9 64 bit text/html 2023-10-25T15:43:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_ex_42_nvme?rev=1698248616&do=diff Server benchmark 2019: Hetzner EX42-NVMe Dedicated Server * 2019 * Intel® Core™ i7-6700 Quad-Core incl. Hyper-Threading Technology * 64 GB DDR4 RAM * 2 x 512 GB NVMe SSD (software-RAID 1) * Connection 1 Gbit/s-Port * Guaranteed Bandwidth 1 GBit/s text/html 2023-10-25T15:43:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_vq_12_vps?rev=1698248606&do=diff Server benchmark 2012: Hetzner VQ 12 VPS * 2012 * Hetzner VQ 12 VPS * Single Core * 1 GB RAM * 40 GB HD on some sort of RAID * no backup space * 2 TB traffic/mo * <https://www.hetzner.de/> * Debian 6.0 64 bit * Tests run 2012-01-31 UnixBench 5.1.2 ./Run dhry2reg whetstone-double syscall pipe context1 spawn execl shell1 shell8 shell16 ======================================================================== BYTE UNIX Benchmarks (Version 5.1.2) System: ********: GNU/L… text/html 2023-10-25T15:42:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_vq_19_vps?rev=1698248538&do=diff Server benchmark 2011: Hetzner VQ 19 VPS * 2011 * Hetzner VQ 19 VPS * Single Core * 2 GB RAM * 80 GB HD on some sort of RAID * no backup space * 4 TB traffic/mo * <https://www.hetzner.de/> * Debian 6.0 64 bit * Tests run 2011-07-26 UnixBench 5.1.2 ./Run dhry2reg whetstone-double syscall pipe context1 spawn execl shell1 shell8 shell16 ======================================================================== BYTE UNIX Benchmarks (Version 5.1.2) System: Debian-60-squee… text/html 2023-02-22T22:37:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/cognos_bi?rev=1677105451&do=diff The automatic IBM Cognos BI Motto: Run your Business Intelligence, don't let your Business Intelligence run you! Written in 2013. I've been working with IBM Cognos BI (Business Intelligence) system for some years. Our application area for the BI system differs from typical application areas: we use it to provide public internet reporting and OLAP analysis tools. These are based on data extracted from our registers and other statistical data sources. text/html 2024-02-19T04:03:51+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/perl2python?rev=1708315431&do=diff Moving from Perl to Python Created 2021-04-27. Latest update 2024-02-19. The need for a general purpose programming language The programming languages that I've previously used include Java, JavaScript, PL/SQL, Ruby, Perl, C, C++, PHP, Pascal, Visual Basic, Lisp and Fortran (at least). text/html 2023-02-22T22:37:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/catz/meta_and_social?rev=1677105451&do=diff Catz metadata and social media integration Mandatory page metadata The base template base/heavy.html.ep forces the following metadata on all pages. tag explanation meta http-equiv content-type meta http-equiv content-language content langauge is also set on html and body so we really are on the safe side text/html 2023-10-25T15:45:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_cax_21?rev=1698248719&do=diff Server benchmark 2023: Hetzner CAX21 Cloud Server * 2023 * 4 vCPU Ampere * 8 GB RAM * 80 GB * 20 TB Traffic * 8.05 €/mo * <https://www.hetzner.de/> * Debian 11 64 bit * Tests run 2023-04-29 Full test ======================================================================== BYTE UNIX Benchmarks (Version 5.1.3) System: *******: GNU/Linux OS: GNU/Linux -- 5.10.0-21-arm64 -- #1 SMP Debian 5.10.162-1 (2023-01-21) Machine: aarch64 (unknown) Language: en_US.utf8 (ch… text/html 2023-10-25T15:45:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_cpx_21_2023?rev=1698248729&do=diff Server benchmark 2023: Hetzner CPX21 Cloud Server 2023 * 2023 * 3 vCPU AMD * 4 GB RAM * 80 GB * 20 TB Traffic * 9.36 €/mo * <https://www.hetzner.de/> * Debian 11 64 bit * Tests run 2023-04-29 Full test ======================================================================== BYTE UNIX Benchmarks (Version 5.1.3) System: *******: GNU/Linux OS: GNU/Linux -- 5.10.0-21-amd64 -- #1 SMP Debian 5.10.162-1 (2023-01-21) Machine: x86_64 (unknown) Language: en_US.utf8 (c… text/html 2023-10-25T15:45:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_cx_11?rev=1698248739&do=diff Server benchmark 2023: Hetzner CX11 Cloud Server * 2023 * 1 vCPU Intel * 2 GB RAM * 20 GB * 20 TB Traffic * 4.70 €/mo * <https://www.hetzner.de/> * Debian 11 64 bit * Tests run 2023-04-29 Full test ======================================================================== BYTE UNIX Benchmarks (Version 5.1.3) System: *******: GNU/Linux OS: GNU/Linux -- 5.10.0-21-amd64 -- #1 SMP Debian 5.10.162-1 (2023-01-21) Machine: x86_64 (unknown) Language: en_US.utf8 (charm… text/html 2023-10-25T15:44:42+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_eq_4?rev=1698248682&do=diff Server benchmark 2011: Hetzner EQ 4 Dedicated Server * 2011 * Hetzner EQ 4 Dedicated Server * i7-920 Quadcore * 8 GB RAM * 750 GB HD RAID1 * 100 GB backup space * 10 TB traffic/mo * <https://www.hetzner.de/> * Debian 6.0 64 bit * Tests run 2011-07-26 UnixBench 5.1.2 ./Run dhry2reg whetstone-double syscall pipe context1 spawn execl shell1 shell8 shell16 ======================================================================== BYTE UNIX Benchmarks (Version 5.1.2) Syst… text/html 2023-10-25T15:44:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/hetzner_ex_4?rev=1698248669&do=diff Server benchmark 2011: Hetzner EX 4 Dedicated Server * 2011 * Hetzner EQ 4 Dedicated Server * i7-2600 Quadcore * 16 GB RAM * 3 TB SATA 6 Gb/s HDD RAID1 * 100 GB backup space * 10 TB traffic/mo * <https://www.hetzner.de/> * Debian 6.0 64 bit * Tests run 2011-10-04 text/html 2023-10-25T15:42:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/server_benchmarks/xencon_xpro_512_vps?rev=1698248520&do=diff Server benchmark 2011: Xencon x|pro 512 VPS * 2011 * Xencon x|pro 512 VPS * Dual CPU * 0.5 GB RAM * 40 GB HD (RAID 1/RAID 10) * with automated backups * 0.5 TB traffic/mo * <https://www.xencon.net/> * Debian 6.0 64 bit * Tests run 2011-07-26 UnixBench 5.1.2 ./Run dhry2reg whetstone-double syscall pipe context1 spawn execl shell1 shell8 shell16 ======================================================================== BYTE UNIX Benchmarks (Version 5.1.2) System: catz:… text/html 2023-02-22T22:37:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/camera_lenses/peleng_8mm_fisheye?rev=1677105451&do=diff Peleng 8mm f/3.5 Fisheye Review of Peleng 8mm f/3.5 fisheye lens. Review created 2006, latest update 2013. catza.net photos: Peleng 8mm f/3.5 fisheye Facts * a classic manual fisheye lens dating back to the good old days * estimated retail price 350 USD * in my use from 6/2005 to 10/2008 text/html 2023-02-22T06:32:41+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/camera_stuff/cameras_lenses_and_else?rev=1677047561&do=diff Camera and lenses are not all you need Written in 2005, latest update 2010. If you are into serious photography, the first things you need are a camera body and one or more lenses. But in addition to these there are many things that are needed or come handy. Here are non-conclusive lists of things that I use or have used. text/html 2023-02-22T22:37:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/compact_cameras/panasonic_lumix_dmc_lx7?rev=1677105451&do=diff Panasonic Lumix DMC-LX7 Review created 2013, latest update 2014. catza.net photos: Panasonic Lumix DMC-LX7 I have been using Ricoh GR for a while but found that there are sometimes cases where the fixed 28 mm focal length is too limiting. I also had noticed that having an APS-C sensor the Ricoh gives aesthetic results resembling to a DSLR. I sometimes prefer a small-sensor aesthetic results. These are the main reasons why I decided to get Panasonic Lumix DMC-LX7. The LX7 was a very natural ch… text/html 2024-07-14T19:07:58+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/photos/1998_2001_keimola_motor_stadium/24?rev=1720984078&do=diff Photo 24: Minitower The miniatyre version of the track's observation tower (2001-05-03) Photo 23: Old tyres<<<<<< Photo 25: Arc of Neste>>>>>> Keimola Motor Stadium · Full size · Vaihda kieli suomeksi [Minitower] Photo 23: Old tyres<<<<<< Photo 25: Arc of Neste>>>>>> Keimola Motor Stadium · Full size · Vaihda kieli suomeksi