online since 1994 https://heikkisiltala.net/wiki/ 2026-04-05T14:20:42+00:00 https://heikkisiltala.net/wiki/ https://heikkisiltala.net/wiki/_media/wiki/logo.png 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 2023-02-24T21:55:04+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 2023-02-24T21:59:25+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 2023-09-22T21:33:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/the_nas_impressions?rev=1695418415&do=diff The small NAS server: long-term impressions 2023-09-23: Writing in progress... Impressions after six months Impressions after six months written in 2021-02-21. The system has been running for about six months now and I'm still very happy of this setup. 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 2023-02-23T23:54:49+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 2023-02-26T17:32:10+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 2023-02-22T22:37:31+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 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 2023-02-20T23:37:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/catz/data_concepts?rev=1676936233&do=diff Catz data concepts The concepts known by the Catz service are listed here in the default sorting order. For more information about the concepts please see <https://catza.net/en/search/> Technical code Visible text Explanation Source data level Langauge dependent album album 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 2023-10-25T15:51:44+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 2023-10-25T16:21:32+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 2023-10-25T15:44:42+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 2023-10-25T15:44:16+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 2023-10-25T15:42:00+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:…