bizfreak22

m3u8 Downloading

1. Open Chrome Developer tools and click the Network tab.
2. Navigate to the page with the video and get it to start playing.
3. Filter the list of files to "m3u8".
4. Find master.m3u8 or index.m3u8 and click on it.
5. Save the file to disk and look inside it.
6. If the file contains a single m3u8 master url, copy that one instead.
7. Run the program m3u8x.
8. Paste the same m3u8 url in both textboxes (URL and Quality URL) and click "Headers" and set the referral url and user-agent from the request as found in Chrome.

bizfreak22

/* 
  ##Device = Desktops
  ##Screen = 1281px to higher resolution desktops
*/

@media (min-width: 1281px) {
  
  //CSS
  

bizfreak22

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:

bizfreak22

How to download streaming video

Streaming just means a download that they don't want you to keep. But Chrome's developer tools make it easy to access what's really going on under the hood.

Open Developer Tools

From the page where you want to download some things, go into your chrome menu to open the developer tools. You can either:

1.  (On a mac): Command-option-J
2. (On a PC): Control-alt-J

bizfreak22

() => {
      function hookPrototypeMethods(prefix, object) {
        // TODO: also hook getters
        if (!object) return;
        const originals = {};
        const prototype = Object.getPrototypeOf(object);
        Object
          .getOwnPropertyNames(prototype)
          .filter((n) => {
            try {

bizfreak22

const WEBGL_RENDERERS = ['ANGLE (NVIDIA Quadro 2000M Direct3D11 vs_5_0 ps_5_0)', 'ANGLE (NVIDIA Quadro K420 Direct3D9Ex vs_3_0 ps_3_0)', 'ANGLE (NVIDIA Quadro 2000M Direct3D9Ex vs_3_0 ps_3_0)', 'ANGLE (NVIDIA Quadro K2000M Direct3D11 vs_5_0 ps_5_0)', 'ANGLE (Intel(R) HD Graphics Direct3D9Ex vs_3_0 ps_3_0)', 'ANGLE (Intel(R) HD Graphics Family Direct3D9Ex vs_3_0 ps_3_0)', 'ANGLE (ATI Radeon HD 3800 Series Direct3D9Ex vs_3_0 ps_3_0)', 'ANGLE (Intel(R) HD Graphics 4000 Direct3D11 vs_5_0 ps_5_0)', 'ANGLE (Intel(R) HD Graphics 4000 Direct3D11 vs_5_0 ps_5_0)', 'ANGLE (AMD Radeon R9 200 Series Direct3D11 vs_5_0 ps_5_0)', 'ANGLE (Intel(R) HD Graphics Direct3D9Ex vs_3_0 ps_3_0)', 'ANGLE (Intel(R) HD Graphics Family Direct3D9Ex vs_3_0 ps_3_0)', 'ANGLE (Intel(R) HD Graphics Direct3D9Ex vs_3_0 ps_3_0)', 'ANGLE (Intel(R) HD Graphics Family Direct3D9Ex vs_3_0 ps_3_0)', 'ANGLE (Intel(R) HD Graphics 4000 Direct3D9Ex vs_3_0 ps_3_0)', 'ANGLE (Intel(R) HD Graphics 3000 Direct3D9Ex vs_3_0 ps_3_0)', 'ANGLE (Mobile Intel(R) 4 Seri

bizfreak22

S3 Static Sites

What this will cover

• Host a static website at S3
• Redirect www.website.com to website.com
• Website can be an SPA (requiring all requests to return index.html)
• Free AWS SSL certs
• Deployment with CDN invalidation

Resources

bizfreak22

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

bizfreak22

How to setup Let's Encrypt for Nginx on Ubuntu 18.04 (including IPv6, HTTP/2 and A+ SLL rating)

---

Virtual hosts

Let's say you want to host domains first.com and second.com.

Create folders for their files:

bizfreak22

ssh-keygen -t rsa -b 4096 -N '' -C "[email protected]" -f ~/.ssh/id_rsa
ssh-keygen -t rsa -b 4096 -N '' -C "[email protected]" -f ~/.ssh/github_rsa
ssh-keygen -t rsa -b 4096 -N '' -C "[email protected]" -f ~/.ssh/mozilla_rsa