baumi's blog

baumi's personal blog … Linux, OS X, Windows, Random things, …

Der Klimawandel war schon 1912 ein Thema …

1912: erste (?) Erwähnung des Klimawandels durch menschlich verursachtes CO2: Quelle: 1978: ZDF Sendung “Querschnitt” Wusstet Ihr, dass der Klimawandel schon 1978 Thema war? Unser #ZDFretro heute ist ein 41 Jahre alter Ausschnitt aus der Sendung "Querschnitt" – und aktueller denn je. — ZDF (@ZDF) October 12, 2019 Quelle:

CO2 Kompensation für Flüge (vom österr. Finanzamt anerkannt)

Die BOKU Wien ist eine anerkannte Spendenorganisation vom BMF. Auf der BOKU Seite kann man bequem den Flug von-bis-via eingeben und Anzahl der Passagiere. Die Kompensation kann für unterschiedliche Projekte (selbst auswählbar) durchgeführt werden. Die Zahlung erfolgt anschließend per Überweisung. Die Spendenbestätigung fürs Finanzamt erhält man unverzüglich (diese gilt natürlich nur mit dem Zahlungsnachweis). Die […]

IPv6 leaks, DNS leaks, OpenVPN, IPSEC, L2TP

Test for DNS and IPv6 leaks: (shows your VPN IPv4 address *and* leaked IPv6, if applicable) Prevent DNS leaks: add “redirect-gateway def1” to your openvpnclient.conf file … Prevent IPv6 leaks (i.e. temporarily disable IPv6): sudo sysctl -w net.ipv6.conf.all.disable_ipv6=1 sudo sysctl -w net.ipv6.conf.wlp2s0.disable_ipv6=1 sudo sysctl -w net.ipv6.conf.lo.disable_ipv6=1 sudo sysctl -w net.ipv6.conf.default.disable_ipv6=1 China VPN: […]

LinPhone VOIP client softphone: Importing SIP contacts from Google Contacts via commandline using PHP on GNU/Linux

The following command will add contact “Demo” to your linphone contact database using sqlite3: sqlite3 ~/.var/app/com.belledonnecommunications.linphone/data/linphone/friends.db “INSERT INTO friends (friend_list_id, sip_uri, subscribe_policy, send_subscribe, ref_key, vCard, vCard_etag, vCard_url, presence_received) VALUES (1, ‘’, 1, 0, NULL, ‘BEGIN:VCARD’ || char(10) || ‘VERSION:4.0’ || char(10) || ‘’ || char(10) || ‘FN:Demo’ || char(10) || ‘IMPP:sip:+4366412346567@’ || char(10) || ‘END:VCARD’, […]

‘Freeze Track’ script for Renoise 3.1.1

A couple of years ago (in 2014) i updated the “Freeze Track” script for Renoise to be working with newer versions and sent a copy to the original author. Unfortunately the author never uploaded the updated version to the scripting tool page and the renoise team didn’t accept my submission because i am not […]

Syncthing: force local network sync

A couple of years ago i set up an owncloud server for myself. While it’s nice for small amount of files, owncloud had some disturbing limitations. I tried syncing more than a million files, and it miserably failed. The search feature would take forever, etc … Also, you always need a server to be running. […]

Ubuntu 18.04 LTS not booting after update

SYMPTOMS / ERROR MESSAGE: sd-executor exit with status 1 systemd failed to open serialization file failed to fully start freezing system failed to insert module autofs4 CAUSE: Ubuntu is now using systemd and some services need read/write access, however the disk has only been mounted as ro (read-only). SOLUTION: Boot into upstart mode or use […]

Currency exchange rates Euro foreign exchange reference rates + historical data XML today: XML 90 days: XML since 1999:

Free historic stock data

1. Register free API key for 2. API documentation: 3. Download data: curl “” –output tsla.csv

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