Youtube has the famous but complicated “Talkback-Help” exploit. Warning: The phone may not be virus free afterwards as Chrome downloads from the internet some “Google Account Manager apk 6.xx”.
Category Archives: Software
Sci-hub with 400.000+ visitors a day?!
There is (most likely first hand information) about Sci-hub Continue reading Sci-hub with 400.000+ visitors a day?!
Test before redirect
I need to test if a ssl server is likely to respond before doing any forward as I would otherwise “loose” a projection screen.
As the server uses only a self-signed certificate, basically all javascript tricks (iframe on the fly, jsonp, …) failed either due to Cross-Origin Resource Sharing (CORS) rules. Even after switching to php the first two methods failed (get header, fsockets) while I finally ended with a simple curl request
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://localhost:8443');
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);
if (curl_error($ch)[0]=="") header('Location: https://localhost:8443');
The best videoconferencing system (even running on a Synology box)
There are many $$$ systems. But there are also super nice systems like Big Blue Button, Apache Open Meeting and Jitsi that are working equally well if you stick to Chrome or Firefox.
I recommend Spreed WebRTC audio/video call and conferencing server. Just run
docker pull spreed/webrtc docker run --rm --name my-spreed-webrtc -p 8080:8080 -p 8443:8443 \ -v `pwd`:/srv/extra -i -t spreed/webrtc
and you are done. The only issue – how to route your local IP to the docker container?
sudo route -n add -net 0.0.0.0/16 146.x.x.x sudo route -n delete 0.0.0.0/16 146.x.x.x
In the meantime, I managed to get it also on the Synology DS418play but only with a manual installation using the DS216+ ii docker binary according to some helpful comments on the synology forum.
Firefox 66 runs microphone, webcam and screen sharing without any problem, Chrome 73 needs a plugin for screen sharing.
How to mount your Synology NAS under OSX High Sierra
Add NAS
sudo nano /etc/auto_master # # Automounter master map # +auto_master # Use directory service /net -hosts -nobrowse,hidefromfinder,nosuid /home auto_home -nobrowse,hidefromfinder /Network/Servers -fstab /- -static /mnt/NAS auto_nas
Add mount point
sudo nano /etc/auto_nas Lightroom -fstype=afp afp://username:password@bilder.local/Lightroom
Start
wakeonlan 00:11:32:xx:xx:xx sleep 30 read -p "Press Enter to continue" </dev/tty sudo automount -vc exec sleep 1
Stop
diskutil unmount /mnt/NAS//Lightroom ssh admin@bilder.local 'sudo shutdown -h now' exec sleep 1
Corrupted file list in Next Cloud
This seems to happen for whatever reasons – the server file list is not in sync with the local file list and cannot even be modified manually. This may be a particular problem when you are at 1&1 /ionos with a hosted package. Here is a solution
$path = realpath(dirname(__FILE__));
#exec("php $path/console.php upgrade 2>&1", $out, $result);
exec("php $path/console.php files:scan --all -v 2>&1", $out, $result);
echo "<pre>result: " .$result .PHP_EOL;
print_r($out);
Bundestag Videos in WordPress einbauen
WordPress verbietet aus Sicherheitsgründen das Einfügen von Javascript. Ich habe die Bundestagsverwaltung angeschrieben, ob sie nicht ähnlich wie Youtube einen Embed Code mit Iframe anbieten könnte, denn bisher bekommt man lediglich
<script id="tv6995628" src="https://webtv.bundestag.de/player/macros/bttv/hls/player.js?content=6995628&phi=default"> <span data-mce-type="bookmark" style="display: inline-block; width: 0px; overflow: hidden; line-height: 0;" class="mce_SELRES_start"></span> </script>
Natürlich könnten man in wp-config.php die Zeile define( ‘CUSTOM_TAGS’, true ); einfügen. Besser scheint mir aber, bis auf weiteres das Code Embed Plugin zu installieren und ein Custom Field für den Video Code anzulegen.
Das Ergebnis sieht dann so aus:
Das ist aber auch nur so lange sicher, als der Bundestag nicht wieder gehackt wird.
What is principle component analysis?
There is a wonderful description at stats.stackexchange.com how science should be taught
Imagine a big family dinner, where everybody starts asking you about PCA. First you explain it to your great-grandmother; then to you grandmother; then to your mother; then to your spouse; finally, to your daughter (who is a mathematician). Each time the next person is less of a layman. Here is how the conversation might go…
This science not by some older science journalists or some younger science slammers but a real expert.
Getting started with webRTC
While the protocol is already around for some time, webRTC isn’t been used so much although many browser are supporting it.
The basic webRTC samples of peer connection works well within the same browser window (showcase) while I need to connect sound + audio between two browser windows in a local network. After trying out several frameworks, I found the most easiest one easyRTCrtc. It works out of the box
git clone https://github.com/priologic/easyrtc.git cd /Users/wjst/Desktop/easyrtc cd /Users/wjst/Desktop/easyrtc/server_example npm install express --save node server.js
while pointing the browser to localhost:8080. Three weeks later, I find the sources poorly documented, connections are frequently broken, while Chrome explains it is moving soon to “Plan B”.
Will test now Ant Media Server.
Aus den Anfängen des Internets
Wenn ich hier die Grafik ansehe, sieht es aus, als hätte ich im Februar 1995 einen der ersten 10.000 Webserver installiert. Selbst 2000 konnte man das noch als Neuigkeit publizieren :-)
PHP Segmentation Error 11
Just a few days before public deployment of my new website this error popped up in the terminal. Apache was running fine but my favorite php test server crashed after 5 minutes. Continue reading PHP Segmentation Error 11
Pages and Endnote
Just found a plugin from Apple that allows Endnote citations in Pages. So Apple is also interested in the science industry :-)
Just in case you arrive here from Google by trying to reformat footnotes as endnotes. Your cursor needs to be on an existing footnote, only then the formatting menu appears top right.
