X-Git-Url: http://pere.pagekite.me/gitweb/homepage.git/blobdiff_plain/50bdd9b4980ce7c170ea96130baf667c5affe05f..33aa1c0600c2b3b8750c5daea87cdcd8625de166:/blog/index.html diff --git a/blog/index.html b/blog/index.html index fe419b29ab..3ee1ee9f09 100644 --- a/blog/index.html +++ b/blog/index.html @@ -20,38 +20,50 @@
-
CasparCG Server for TV broadcast playout in Debian
-
15th January 2019
-

The layered video playout server created by Sveriges Television, -CasparCG Server, entered Debian -today. This completes many months of work to get the source ready to -go into Debian. The first upload to the Debian NEW queue happened a -month ago, but the work upstream to prepare it for Debian started more -than two and a half month ago. So far -the -casparcg-server package is only available for amd64, but I hope -this can be improved. The package is in contrib because it depend on -the non-free fdk-aac -library. The Debian package lack support for streaming web pages -because Debian is missing CEF, Chromium Embedded Framework. CEF is -wanted by several packages in Debian. But because the Chromium source -is not available as a build -dependency, it is not yet possible to upload CEF to Debian. I -hope this will change in the future.

- -

The reason I got involved is that -the Norwegian open channel -Frikanalen is starting to use CasparCG for our HD playout, and I -would like to have all the free software tools we use to run the TV -channel available as packages from the Debian project. The last -remaining piece in the puzzle is Open Broadcast Encoder, but it depend -on quite a lot of patched libraries which would have to be included in -Debian first.

+
Totalovervåkning av innbyggernes bevegelser - nei takk!
+
16th April 2020
+

Jeg er blitt spurt hva jeg synes om lansering av smittestopp-appen, +overvåkningsløsningen lansert av Folkehelseinstituttet, +Simula-senteret og Regjeringen i dag, fulgt av klare trusler fra +regjeringen om konsekvenser hvis befolkningen ikke tar den i bruk. +Rekker ikke skrive noe fyldig om temaet, men det er klart for meg at +den utraderer retten til privatliv samt utgjør en personlig +sikkerhetsrisiko for alle som tar den i bruk. Bare det er nok til at +det fremstår som en svert dårlig ide å bli med på denne "dugnaden". +Det finnes andre og bedre tilnærminger enn den valgt av FHI. Har de +valgt den for å sikre seg nok et datasett i den fremtidige +ehelse-portalen? Potensialet for misbruk av informasjon samlet inn av +appen er for stort, effekten på neste krise for klar og gevinsten for +liten.

+ +

For å si det med forhenværende leder i Datatilsynet, Georg Apenes, +som skrev i en kronikk den gang Datatilsynet vernet +privatsfæren at +«SENTRALT +I en liberal forestillingsverden finner vi aksept av borgerens rett +til å kunne velge å være i fred; å være u-iakttatt, uregistrert og +anonym». Det er ikke uten grunn han startet kronikken med +«Personvern et fremmedord i enkelte av de statsorganene som samler +inn, oppbevarer og bruker personopplysninger». Der har nok +statsorganene bare blitt dårligere på 13 år.

+ +

Det er jo også verdt å merke seg at personvernrådet i EU (EDPB) +mener smittestopp-appen +opererer +i strid med prinsippet om dataminimering. Også de ser at det +finnes mye bedre måter å gjøre dette på.

+ + +

Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til +det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner +til min adresse +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. +Merk, betaling med bitcoin er ikke anonymt. :)

- Tags: english, frikanalen, multimedia, video. + Tags: norsk, surveillance.
@@ -59,59 +71,31 @@ Debian first.

-
Learn to program with Minetest on Debian
-
15th December 2018
-

A fun way to learn how to program -Python is to follow the -instructions in the book -"Learn to program -with Minecraft", which introduces programming in Python to people -who like to play with Minecraft. The book uses a Python library to -talk to a TCP/IP socket with an API accepting build instructions and -providing information about the current players in a Minecraft world. -The TCP/IP API was first created for the Minecraft implementation for -Raspberry Pi, and has since been ported to some server versions of -Minecraft. The book contain recipes for those using Windows, MacOSX -and Raspian. But a little known fact is that you can follow the same -recipes using the free software construction game -Minetest.

- -

There is a -Minetest module implementing the same API, making it possible to -use the Python programs coded to talk to Minecraft with Minetest too. -I -uploaded -this module to Debian two weeks ago, and as soon as it clears the -FTP masters NEW queue, learning to program Python with Minetest on -Debian will be a simple 'apt install' away. The Debian package is -maintained as part of the Debian Games team, and -the -packaging rules are currently located under 'unfinished' on -Salsa.

- -

You will most likely need to install several of the Minetest -modules in Debian for the examples included with the library to work -well, as there are several blocks used by the example scripts that are -provided via modules in Minetest. Without the required blocks, a -simple stone block is used instead. My initial testing with a analog -clock did not get gold arms as instructed in the python library, but -instead used stone arms.

- -

I tried to find a way to add the API to the desktop version of -Minecraft, but were unable to find any working recipes. The -recipes -I found are only -working with a standalone Minecraft server setup. Are there any -options to use with the normal desktop version?

+
Ny URL til den frie norske stavekontrollen
+
21st March 2020
+

Det er lenge siden jeg har sett på den norske stavekontrollen, sist +jeg skrev om temaet var i 2016, og i mellomtiden har nettstedet +no.speling.org forsvunnet, og både git-depotet på Alioth og +mailman-tjenesten som hadde epostlistene for oversettelser blitt lagt +ned. Men bokmål og nynorsk trenger fortsatt stavekontroll, så etter +et par purringer fra en som har lyst til å forbedre stavekontrollen +har jeg endelig fått lagt ut ny offentlig kopi av git-depotet. Jeg +valgte gitlab foran github.. Siste utgave av stavekontrollen kan +hentes ned fra +https://gitlab.com/norwegian-language-tools/spell-norwegian. +Ingen ny versjon i denne omgang altså, bare et nytt sted å samle +forbedringer til den frie norske stavekontrollen. :) -

As usual, if you use Bitcoin and want to show your support of my -activities, please send Bitcoin donations to my address -15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.

+

Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til +det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner +til min adresse +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. +Merk, betaling med bitcoin er ikke anonymt. :)

- Tags: debian, english. + Tags: norsk, stavekontroll.
@@ -119,30 +103,95 @@ activities, please send Bitcoin donations to my address
-
Non-blocking bittorrent plugin for vlc
-
12th December 2018
-

A few hours ago, a new and improved version (2.4) of -the VLC -bittorrent plugin was uploaded to Debian. This new version -include a complete rewrite of the bittorrent related code, which seem -to make the plugin non-blocking. This mean you can actually exit VLC -even when the plugin seem to be unable to get the bittorrent streaming -started. The new version also include support for filtering playlist -by file extension using command line options, if you want to avoid -processing audio, video or images. The package is currently in Debian -unstable, but should be available in Debian testing in two days. To -test it, simply install it like this:

- -

-apt install vlc-plugin-bittorrent
-

- -

After it is installed, you can try to use it to play a file -downloaded live via bittorrent like this: - -

-vlc https://archive.org/download/Glass_201703/Glass_201703_archive.torrent
-

+
Nikita version 0.5 released - updated free software archive API server
+
2nd March 2020
+

Today, after many months of development, a new release of +Nikita +Noark 5 core project was finally +announced +on the project mailing list. The Nikita free software solution is +an implementation of the Norwegian archive standard Noark 5 used by +government offices in Norway. These were the changes in version 0.5 +since version 0.4, see the email link above for links to a demo +site:

+ +
    + +
  • Updated to Noark 5 versjon 5.0 API specification. +
      +
    • Changed formatting of _links from [] to {} to match IETF draft + on JSON HAL.
      • +
    • Merged Registrering og Basisregistrering in version 4 to + combined Registrering.
      • +
    • DokumentObjekt is now subtype of ArkivEnhet.
      • +
    • Introducing new entity Arkivnotat.
      • +
    • Changed all relation keys to use /v5/ instead of /v4/.
      • +
    • Corrected to use new official relation keys when possible.
      • +
    • Renamed Sakspart to Part and connect it to Mappe, Registrering + and Dokumentbeskrivelse instead of only Saksmappe.
      • +
    • Moved Korrespondansepart connection from Journalpost to + Registrering.
      • +
    • Moved Part and Korrespondansepart from package sakarkiv to + arkivstruktur.
      • +
    • Renamed presedensstatus to presedensStatus.
      • +
    • Use new JSON content-type "application/vnd.noark5+json".
      • +
    • Updated prepopulated format list to use PRONOM codes.
      • +
    • Implemented endpoint for system information.
      • +
    • Implemented national identifiers for both file and record.
      • +
    • Implemented comments.
      • +
    • implemented sign off.
      • +
    • implemented conversion.
      • +
    • +
  • Improved/implemented OData search and paging support for more entities.
    • +
  • No longer exposes attribute Dokumentobjekt.referanseDokumentfil, + one should use the relation in _links instead.
    • +
  • Corrected relation keys under + https://rel.arkivverket.no/noark5/v5/api/administrasjon/, replacing + 'administrasjon' with 'admin'.
    • +
  • Fixed several security and stability issues discovered by Coverity.
    • +
  • Corrected handling ETag errors, now return code 409.
    • +
  • Improved handling of Kryssreferanse.
    • +
  • Changed internal database model to use UUID/SystemID as primary keys + in tables.
    • +
  • Changed internal database table names to use package prefix.
    • +
  • Changed time zone handling for date and datetime attributes, to be + more according to the new definition in the API specification.
    • +
  • Change revoke-token to only drop token on POST requests, not GET.
    • +
  • Updated to newer Spring version.
    • +
  • Changed primary key and URL component for metadata code lists to + use the 'kode' value instead of a SystemID.
    • +
  • Corrected implementation of Part and Sakspart.
    • +
  • Changed instance lists with subtypes (like .../registrering/ and + .../mappe/) to include the attributes and _links entries for the + subtype in the supertype lists.
    • +
  • Adjusted _links relations to make it possible to figure out the + entity of an instance using the self->href->relation key lookup + method.
    • +
  • Fixed several end points to make sure GET, PUT, POST and DELETE + match each other.
    • +
  • Updated DELETE endpoints to work with UUID based entity + identifiers.
    • +
  • Restructured code to use more common URL related constants in entry + point values and replace @RequestMapping with method specific + annotations.
    • +
  • Added first unit test code.
    • +
  • Updated web GUI to work with the updated API.
    • +
  • Changed integer fields, enforce them as numeric.
    • +
  • Rewrote and simplify metadata handling to use common service and + controller code instead of duplicating for each type.
    • +
  • Implemented the remaining metadata types.
    • +
  • Changed Country list source from Wikipedia to Debian iso-codes and + updated the list of Countries.
    • +
  • Many many corrections and improvements.
    • + +
+ +

If free and open standardized archiving API sound interesting to +you, please contact us on IRC +(#nikita on +irc.freenode.net) or email +(nikita-noark +mailing list).

As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -151,7 +200,7 @@ activities, please send Bitcoin donations to my address

- Tags: english, verkidetfri, video. + Tags: english, noark5, nuug, offentlig innsyn, standard.
@@ -159,55 +208,40 @@ activities, please send Bitcoin donations to my address
-
Retten til kontant betaling er en rettighet som må brukes for å beholdes
-
11th December 2018
-

FNs -menneskerettighetserklæring artikkel 13 første punkt lyder som -følger:

- -

-Enhver har rett til å bevege seg fritt og til fritt å velge -oppholdssted innenfor en stats grenser. -

- -

Det er altsÃ¥ en menneskerett Ã¥ kunne bevege seg fritt i landet. -For Ã¥ bevege seg fritt i landet, sÃ¥ mÃ¥ en kunne bevege seg uten Ã¥ bli -sporet. Det vil i dagens samfunn innebære Ã¥ bevege seg uten Ã¥ legge -igjen digitale spor og uten Ã¥ være radiomerket. Hvis en vet at ens -bevegelser, hvor en befinner seg nÃ¥r, og hvem som befinner seg i -nærheten, blir samlet inn og gjort tilgjengelig for fremmede, det være -seg myndighetene eller private organisasjoner, sÃ¥ kan en ikke lenger -bevege seg fritt. Dette gjør at det er en forutsetning for Ã¥ ha glede -av retten til Ã¥ bevege seg fritt i landet at en motstÃ¥r fristelsen til -Ã¥ legge igjen digitale spor nÃ¥r en betaler for seg. Rettigheter som -ikke blir brukt, blir fjernet. Den eneste mÃ¥ten i dag Ã¥ unngÃ¥ Ã¥ legge -igjen digitale spor nÃ¥r en betaler for seg, er Ã¥ betale med kontanter, -samt takke nei til Ã¥ legge igjen navn og adresse (slik f.eks. Elkjøp -ber om — jeg sier de kan legge inn «anonym anonym» nÃ¥r -datasystemet deres trenger et navn). Personlig anbefaler jeg Ã¥ -konsekvent bruke kontant betaling nÃ¥r man beveger seg rundt, for Ã¥ -bidra til forsvaret av menneskerettighetene i Norge. Kanskje noe ogsÃ¥ -for deg? Merk at det ikke er tilstrekkelig for Ã¥ unngÃ¥ sporing Ã¥ -betale med kontanter, men det er et lite steg i riktig retning.

- -

Det er flere andre argumenter i tillegg til -menneskerettighetsargumentet for å bruke kontanter. I går hadde -Dagbladet en utmerket kommentar av sin journalist John Olav Egeland om -hvilket -kontantløst -diktatur som venter oss hvis mange nok slutter å insistere på å -betale med kontanter. Jeg anbefaler deg å lese den.

+
Blockchain and IoT articles accepted into Records Management Journal
+
27th February 2020
+

On Tuesday, two scietific articles we have been working on for a +while, was finally accepted for publication into +Records +Management Journal. Still waiting for the assigned DOI urls to +start working, but you can have a look at the LaTeX originals here.

+ +

The first article is +"A +record-keeping approach to managing IoT-data for government +agencies" (DOI +10.1108/RMJ-09-2019-0056) by Thomas Sødring, Petter Reinholdtsen +and David Massey, and sketches some approaches for storing measurement +data (aka Internet of Things sensor data) in a archive, thus providing +a well defined mechanism for screening and deletion of the information

+ +

The second article is +"Publishing +and using record-keeping structural information in a blockchain" +(DOI +10.1108/RMJ-09-2019-0050) by Thomas Sødring, Petter Reinholdtsen +and Svein Ølnes, where we describe a way for third parties to validate +authenticity and thus improve trust in the records kept in a +archive.

-

Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til -det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner -til min adresse -15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. -Merk, betaling med bitcoin er ikke anonymt. :)

+

As usual, if you use Bitcoin and want to show your support of my +activities, please send Bitcoin donations to my address +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.

- Tags: norsk, personvern. + Tags: english, noark5.
@@ -215,45 +249,45 @@ Merk, betaling med bitcoin er ikke anonymt. :)

-
Why is your site not using Content Security Policy / CSP?
-
9th December 2018
-

Yesterday, I had the pleasure of watching on Frikanalen the OWASP -talk by Scott Helme titled -"What We’ve Learned From -Billions of Security Reports". I had not heard of the -Content -Security Policy standard nor its ability to "call home" when a -browser detect a policy breach (I do not follow web page design -development much these days), and found the talk very illuminating.

- -

The mechanism allow a web site owner to use HTTP headers to tell -visitors web browser which sources (internal and external) are allowed to -be used on the web site. Thus it become possible to enforce a "only -local content" policy despite web designers urge to fetch programs -from random sites on the Internet, like the one -enabling -the attack reported by Scott Helme earlier this year.

- -

Using CSP seem like an obvious thing for a site admin to implement -to take some control over the information leak that occur when -external sources are used to render web pages, it is a mystery more -sites are not using CSP? It is being -standardized under W3C these -days, and is supposed by most web browsers

- -

I managed to find a -Django middleware for implementing CSP and was happy to discover -it was already in Debian. I plan to use it to add CSP support to the -Frikanalen web site soon.

+
Redaksjon på plass for Noark 5 tjenestegrensesnitt
+
5th February 2020
+

Arbeidet med å lage et godt, fritt og åpent standardisert maskinelt +grensesnitt for arkivering, med tilhørende fri +programvareimplementasjon fortsetter. Jeg snakker om +Noark +5 Tjenestegrensesnitt og +Nikita. +Siste nytt etter +seminaret +for noen dager siden, er vi i Nikita-prosjektet har fått beskjed +fra Arkivverket at det blir satt ned en redaksjon for å videreutvikle +spesifikasjonen. Redaksjonen består av Mona Danielsen og Anne Sofie +Knutsen ved arkivverket, Thomas Sødring ved OsloMet, og meg selv fra +NUUG. De to sistenevnte tar seg av de åpenbare forbedringene, mens +hele redaksjonen diskuterer tvilstilfeller. Jeg håper dette vil bidra +til at vi lykkes i å gjøre denne protokollspesifikasjonen så entydig +og klar at den vil bidra til et velfungerende marked for +arkivsystemer, og sikre at programmer som trenger å snakke med +arkivsystemet kan snakke med enhver implementasjon av +API-spesifikasjonen. Nikita er den første implementasjonen, men det +bør blir flere.

+ +

Det gjenstår riktig nok endel før vi er i mål, selv om svært mye +allerede er på plass. Med innspill og forslag til forbedringer fra +alle som vil ha et leverandøruavhengig og fullstendig +datamaskinlesbart grensesnitt til arkivet, så tror jeg vi vil +lykkes.

-

As usual, if you use Bitcoin and want to show your support of my -activities, please send Bitcoin donations to my address -15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.

+

Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til +det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner +til min adresse +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. +Merk, betaling med bitcoin er ikke anonymt. :)

- Tags: english, standard, web. + Tags: noark5, norsk, standard.
@@ -261,46 +295,35 @@ activities, please send Bitcoin donations to my address
-
New and improved Frikanalen Kodi addon version 0.0.3
-
8th November 2018
-

If you read my blog regularly, you probably know I am involved in -running and developing the Norwegian -TV channel Frikanalen. It is an open channel, allowing everyone -in Norway to publish videos on a TV channel with national coverage. -You can think of it as Youtube for national television. -In addition to distribution on RiksTV and Uninett, Frikanalen is also -available as a Kodi addon. The last few days I have updated the code -to add more features. A -new -and improved version 0.0.3 Frikanalen addon was just made -available via the Kodi repositories. This new version include a -option to browse videos by category, as well as free text search -in the video archive. It will now also show the video duration in the -video lists, which were missing earlier. A new and experimental -link to the HD video stream currently being worked on is provided, for -those that want to see what the CasparCG -output look like. The alternative is the SD video stream, generated -using MLT. CasparCG is controlled by our -mltplayout -server which instead of talking to mlt is giving PLAY instructions -to the CasparCG server when it is time to start a new program.

- -

By now, you are probably wondering what kind of content is being -played on the channel. These days, it is filled with technical -presentations like those from NUUG, -Debconf, Makercon, and TED, -but there are also some periods with -EMPT TV and -P7. +

Artikkel om Noark 5 Tjenestegrensesnitt og Nikita i Arkivråd nummer 3 for 2019
+
26th December 2019
+

Like før julaften ble en artikkel jeg har skrevet om vedlikehold av +Noark +5 Tjenestegrensesnitt og Nikita publisert i tidsskriftet Arkivråd. +Det er basert på +min bloggpost +om samme tema som ble publisert 2019-03-11. Jeg oppdaget nettopp +at nettsiden til tidsskriftet Arkivråd er oppdatert med siste utgave, +og artikkelen dermed er tilgjengelig for alle. Du finner den i +PDF-en +til nummer 2019/3 på side 30-33. Jeg håper leserne av +tidsskriftet får lyst til å sjekke ut tjenestegrensesnittet og at +artikkelen vil gjøre det enklere for flere å bidra til en enda bedre, +klarere og mer entydig API-spesifikasjon. Det kan gjøre at +arkivsystemet +Nikita kan bli enda bedre når spesifikasjonen forbedres.

-

As usual, if you use Bitcoin and want to show your support of my -activities, please send Bitcoin donations to my address -15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.

+

Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til +det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner +til min adresse +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. +Merk, betaling med bitcoin er ikke anonymt. :)

- Tags: english, frikanalen, kodi, video. + Tags: noark5, norsk, standard.
@@ -308,42 +331,61 @@ activities, please send Bitcoin donations to my address
-
Time for an official MIME type for patches?
-
1st November 2018
-

As part of my involvement in -the Nikita -archive API project, I've been importing a fairly large lump of -emails into a test instance of the archive to see how well this would -go. I picked a subset of my -notmuch email database, all public emails sent to me via -@lists.debian.org, giving me a set of around 216 000 emails to import. -In the process, I had a look at the various attachments included in -these emails, to figure out what to do with attachments, and noticed -that one of the most common attachment formats do not have -an -official MIME type registered with IANA/IETF. The output from -diff, ie the input for patch, is on the top 10 list of formats -included in these emails. At the moment people seem to use either -text/x-patch or text/x-diff, but neither is officially registered. It -would be better if one official MIME type were registered and used -everywhere.

- -

To try to get one official MIME type for these files, I've brought -up the topic on -the -media-types mailing list. If you are interested in discussion -which MIME type to use as the official for patch files, or involved in -making software using a MIME type for patches, perhaps you would like -to join the discussion?

+
Meningsløst, men for hvem...
+
25th December 2019
+

En historie som har betydd endel for meg, og som jeg av og til +tenker på når hverdagen tynger, ble så vidt jeg har klart å finne ut, +skrevet av Loren +Eiseley i +flere ulike varianter. På norsk tror jeg den går under navnet +«Gutten og sjøstjernen», og jeg fant en oversettelse av en utgave av den +hos +Quora. +Fant også en +filmatisering, men den versjonen jeg liker best fant jeg +hos +Goodreads. Jeg oversatte den utgaven til norsk i går, og har lyst +til å dele den med deg: + +

Mens jeg tok en pause fra skrivingen og vandret på en +øde strand ved daggry, så jeg en gutt i det fjerne bøye seg ned og +kaste noe mens han vandret mot meg over den endeløse stranden. Da han +kom nærmere, kunne jeg se at han kastet sjøstjerner, som var etterlatt +i sanden av tidevannet, tilbake i havet. Da han var nær nok spurte jeg +ham hvorfor han jobbet så hardt på denne merkelige oppgaven. Han sa at +solen snart ville stå opp og tørke sjøstjernene slik at de ville +dø.

+ +

Jeg sa til ham at dette var helt meningsløst. Det var kilometer på +kilometer med strand, og det lå sjøstjerner hele veien. En person +alene kunne ikke gjøre noen forskjell. Han smilte da han plukket opp +neste sjøstjerne. Mens han kastet den så langt ut i havet som han +klarte sa han, «for denne gjør det en forskjell». Jeg droppet +skrivingen og tilbrakte resten av morgenen med å kaste +sjøstjerner.

+ +

- Loren Eiseley

+
+ +

Kanskje noe du også kan ha glede av å tenke på når ting virker +håpløst?

+ +

Teksten er gjengitt og oversatt basert på utgaven på Good Read, +uten tillatelse fra noen andre enn meg selv. Jeg håper på tilgivelse, +hvis det er et problem for noen, da det er gjort i beste mening. Hvis +eventuell rettighetshaver tar kontakt vil jeg fjerne teksten og i +stedet legge ut henvendelsen der teksten kreves fjernet.

-

As usual, if you use Bitcoin and want to show your support of my -activities, please send Bitcoin donations to my address -15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.

+

Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til +det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner +til min adresse +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. +Merk, betaling med bitcoin er ikke anonymt. :)

- Tags: debian, english, standard. + Tags: norsk.
@@ -351,79 +393,27 @@ activities, please send Bitcoin donations to my address
-
Measuring the speaker frequency response using the AUDMES free software GUI - nice free software
-
22nd October 2018
-

- -

My current home stereo is a patchwork of various pieces I got on -flee markeds over the years. It is amazing what kind of equipment -show up there. I've been wondering for a while if it was possible to -measure how well this equipment is working together, and decided to -see how far I could get using free software. After trawling the web I -came across an article from DIY Audio and Video on -Speaker -Testing and Analysis describing how to test speakers, and it listing -several software options, among them -AUDio MEasurement -System (AUDMES). It is the only free software system I could find -focusing on measuring speakers and audio frequency response. In the -process I also found an interesting article from NOVO on -Understanding -Speaker Specifications and Frequency Response and an article from -ecoustics on -Understanding -Speaker Frequency Response, with a lot of information on what to -look for and how to interpret the graphs. Armed with this knowledge, -I set out to measure the state of my speakers.

- -

The first hurdle was that AUDMES hadn't seen a commit for 10 years -and did not build with current compilers and libraries. I got in -touch with its author, who no longer was spending time on the program -but gave me write access to the subversion repository on Sourceforge. -The end result is that now the code build on Linux and is capable of -saving and loading the collected frequency response data in CSV -format. The application is quite nice and flexible, and I was able to -select the input and output audio interfaces independently. This made -it possible to use a USB mixer as the input source, while sending -output via my laptop headphone connection. I lacked the hardware and -cabling to figure out a different way to get independent cabling to -speakers and microphone.

- -

Using this setup I could see how a large range of high frequencies -apparently were not making it out of my speakers. The picture show -the frequency response measurement of one of the speakers. Note the -frequency lines seem to be slightly misaligned, compared to the CSV -output from the program. I can not hear several of these are high -frequencies, according to measurement from -Free Hearing Test -Software, an freeware system to measure your hearing (still -looking for a free software alternative), so I do not know if they are -coming out out the speakers. I thus do not quite know how to figure -out if the missing frequencies is a problem with the microphone, the -amplifier or the speakers, but I managed to rule out the audio card in my -PC by measuring my Bose noise canceling headset using its own -microphone. This setup was able to see the high frequency tones, so -the problem with my stereo had to be in the amplifier or speakers.

- -

Anyway, to try to role out one factor I ended up picking up a new -set of speakers at a flee marked, and these work a lot better than the -old speakers, so I guess the microphone and amplifier is OK. If you -need to measure your own speakers, check out AUDMES. If more people -get involved, perhaps the project could become good enough to -include in Debian? And if -you know of some other free software to measure speakers and amplifier -performance, please let me know. I am aware of the freeware option -REW, but I want something -that can be developed also when the vendor looses interest.

+
Artikkel om Nikita i Arkheion nummer 2019/2
+
9th December 2019
+

Jeg hadde i dag gleden av å oppdage at en artikkel om +arkivsystemet +Nikita som vi skrev i sommer, nå er publisert i +Arkheion, fagtidsskrift for kommunial +arkivsektor. Du finner artikkelen på side 30-33 i nummer 2019/2, +PDF kan lastes ned fra nettstedet til tidsskriftet. Kanskje +publiseringen kan føre til at noen flere får øynene opp for verdien av +et åpent standardisert API for arkivering og søk i arkivet.

-

As usual, if you use Bitcoin and want to show your support of my -activities, please send Bitcoin donations to my address -15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.

+

Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til +det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner +til min adresse +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. +Merk, betaling med bitcoin er ikke anonymt. :)

- Tags: english, nice free software. + Tags: noark5, norsk, standard.
@@ -431,58 +421,45 @@ activities, please send Bitcoin donations to my address
-
Web browser integration of VLC with Bittorrent support
-
21st October 2018
-

Bittorrent is as far as I know, currently the most efficient way to -distribute content on the Internet. It is used all by all sorts of -content providers, from national TV stations like -NRK, Linux distributors like -Debian and -Ubuntu, and of course the -Internet archive. - -

Almost a month ago -a new -package adding Bittorrent support to VLC became available in -Debian testing and unstable. To test it, simply install it like -this:

- -

-apt install vlc-plugin-bittorrent
-

- -

Since the plugin was made available for the first time in Debian, -several improvements have been made to it. In version 2.2-4, now -available in both testing and unstable, a desktop file is provided to -teach browsers to start VLC when the user click on torrent files or -magnet links. The last part is thanks to me finally understanding -what the strange x-scheme-handler style MIME types in desktop files -are used for. By adding x-scheme-handler/magnet to the MimeType entry -in the desktop file, at least the browsers Firefox and Chromium will -suggest to start VLC when selecting a magnet URI on a web page. The -end result is that now, with the plugin installed in Buster and Sid, -one can visit any -Internet -Archive page with movies using a web browser and click on the -torrent link to start streaming the movie.

- -

Note, there is still some misfeatures in the plugin. One is the -fact that it will hang and -block VLC -from exiting until the torrent streaming starts. Another is the -fact that it -will pick -and play a random file in a multi file torrent. This is not -always the video file you want. Combined with the first it can be a -bit hard to get the video streaming going. But when it work, it seem -to do a good job.

- -

For the Debian packaging, I would love to find a good way to test -if the plugin work with VLC using autopkgtest. I tried, but do not -know enough of the inner workings of VLC to get it working. For now -the autopkgtest script is only checking if the .so file was -successfully loaded by VLC. If you have any suggestions, please -submit a patch to the Debian bug tracking system.

+
When terms and policy turn users away
+
7th December 2019
+

When asked to accept terms of use and privacy policies that state +it will to remove rights I otherwise had or accept unreasonable terms +undermining my privacy, I choose away the service. I simply do not +have the conscience to accept terms I have no indention of upholding. +But how are the system and service providers to know how many people +they scared away? Normally I just quietly walk away. But today, I +tried a new approach. I sent the following email (removing the +specifics, as I am not out to take the specific service in question) +to the service provider I decided to not use, to at least give them +one data point on how many users are unhappy with their terms:

+ +
+From: Petter Reinholdtsen +
Subject: When terms of use turn users away +
To: [contact@some.site] +
Date: Sat, 07 Dec 2019 16:30:56 +0100 + +

Dear [Site Owner],

+ +

I was eager to test the system, as it seemed like a fun and +interesting application of [some] technology, but after reading the +terms of use and privacy policy on <URL: +https://www.[some.site]/terms-of-use > and <URL: +https://www.[some.site]/privacy-policy > I want you to know that I +decided to turn away. There were several provisions in the terms and +policy turning me off, but the final term that convinced me was being +asked to sign away my right to reverse engineer.

+ +

-- +
Happy hacking +
Petter Reinholdtsen

+
+ +

I do not expect much to come out of it, but sharing it here in case +others want to give something similar a try too. If companies +discover their terms scare away enough people, perhaps they will be +improved...

As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -491,7 +468,7 @@ activities, please send Bitcoin donations to my address

- Tags: english, verkidetfri, video. + Tags: english, personvern.
@@ -499,80 +476,61 @@ activities, please send Bitcoin donations to my address
-
Release 0.2 of free software archive system Nikita announced
-
18th October 2018
-

This morning, the new release of the -Nikita -Noark 5 core project was -announced -on the project mailing list. The free software solution is an -implementation of the Norwegian archive standard Noark 5 used by -government offices in Norway. These were the changes in version 0.2 -since version 0.1.1 (from NEWS.md): - -

    -
  • Fix typos in REL names
    • -
  • Tidy up error message reporting
    • -
  • Fix issue where we used Integer.valueOf(), not Integer.getInteger()
    • -
  • Change some String handling to StringBuffer
    • -
  • Fix error reporting
    • -
  • Code tidy-up
    • -
  • Fix issue using static non-synchronized SimpleDateFormat to avoid - race conditions
    • -
  • Fix problem where deserialisers were treating integers as strings
    • -
  • Update methods to make them null-safe
    • -
  • Fix many issues reported by coverity
    • -
  • Improve equals(), compareTo() and hash() in domain model
    • -
  • Improvements to the domain model for metadata classes
    • -
  • Fix CORS issues when downloading document
    • -
  • Implementation of case-handling with registryEntry and document upload
    • -
  • Better support in Javascript for OPTIONS
    • -
  • Adding concept description of mail integration
    • -
  • Improve setting of default values for GET on ny-journalpost
    • -
  • Better handling of required values during deserialisation
    • -
  • Changed tilknyttetDato (M620) from date to dateTime
    • -
  • Corrected some opprettetDato (M600) (de)serialisation errors.
    • -
  • Improve parse error reporting.
    • -
  • Started on OData search and filtering.
    • -
  • Added Contributor Covenant Code of Conduct to project.
    • -
  • Moved repository and project from Github to Gitlab.
    • -
  • Restructured repository, moved code into src/ and web/.
    • -
  • Updated code to use Spring Boot version 2.
    • -
  • Added support for OAuth2 authentication.
    • -
  • Fixed several bugs discovered by Coverity.
    • -
  • Corrected handling of date/datetime fields.
    • -
  • Improved error reporting when rejecting during deserializatoin.
    • -
  • Adjusted default values provided for ny-arkivdel, ny-mappe, - ny-saksmappe, ny-journalpost and ny-dokumentbeskrivelse.
    • -
  • Several fixes for korrespondansepart*.
    • -
  • Updated web GUI: -
      -
    • Now handle both file upload and download.
      • -
    • Uses new OAuth2 authentication for login.
      • -
    • Forms now fetches default values from API using GET.
      • -
    • Added RFC 822 (email), TIFF and JPEG to list of possible file formats.
      • -
    • -
- -

The changes and improvements are extensive. Running diffstat on -the changes between git tab 0.1.1 and 0.2 show 1098 files changed, -108666 insertions(+), 54066 deletions(-).

- -

If free and open standardized archiving API sound interesting to -you, please contact us on IRC -(#nikita on -irc.freenode.net) or email -(nikita-noark -mailing list).

- -

As usual, if you use Bitcoin and want to show your support of my -activities, please send Bitcoin donations to my address -15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.

+
What would it cost to store all 2018 phone calls in Norway?
+
25th November 2019
+

Four years ago, I did a back of the envelope calculation on +how +much it would cost to store audio recordings of all the phone calls in +Norway, and came up with NOK 2.1 million / EUR 250 000 for the +year 2013. It is time to repeat the calculation using updated +numbers. The calculation is based on how much data storage is needed +for each minute of audio, how many minutes all the calls in Norway +sums up to, multiplied by the cost of data storage.

+ +

The number of phone call minutes for 2018 was fetched from +the NKOM statistics +site, and for 2018, land line calls are listed as 434 238 000 +minutes, while mobile phone calls are listed with 7 542 006 000 +minutes. The total number of minutes is thus 7 976 244 000. For +simplicity, I decided to ignore any advantages in audio compression the +last four years, and continue to assume 60 Kbytes/min as the last +time.

+ +

Storage prices still varies a lot, but as last time, I decide to +take a reasonable big and cheap hard drive, and double its price to +include the surrounding costs into account. A 10 TB disk cost less +than 4500 NOK / 450 EUR these days, and doubling it give 9000 NOK per +10 TB.

+ +

So, with the parameters in place, lets update the old table +estimating cost for calls in a given year:

+ + + + + + + + + + +
YearCall minutesSizePrice in NOK / EUR
200524 000 000 0001.3 PiB1 170 000 / 117 000
201218 000 000 0001.0 PiB900 000 / 90 000
201317 000 000 000950 TiB855 000 / 85 500
20187 976 244 000445 TiB401 100 / 40 110
+ +

Both the cost of storage and the number of phone call minutes have +dropped since the last time, bringing the cost down to a level where I +guess even small organizations can afford to store the audio recording +from every phone call taken in a year in Norway. Of course, this is +just the cost of buying the storage equipment. Maintenance, need to +be included as well, but the volume of a single year is about a single +rack of hard drives, so it is not much more than I could fit in my own +home. Wonder how much the electricity bill would raise if I had that +kind of storage? I doubt it would be more than a few tens of thousand +NOK per year.

- Tags: english, nuug, offentlig innsyn, standard. + Tags: english, personvern, surveillance.
@@ -587,10 +545,39 @@ activities, please send Bitcoin donations to my address

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