voluntas

Clockwork Base32

Clockwork Base32 is a simple variant of Base32 inspired by Crockford's Base32.

See also a blog post (in Japanese).

Table of Contents

• Specification Version
• Last updated

voluntas

const std = @import("std");
const system = std.os.system;

pub const Scheduler = struct {

    pub const InitConfig = struct {
        max_threads: ?u16 = null,
    };

    pub fn init(self: *Scheduler, config: InitConfig) !void {

voluntas

v=0
o=- 7449998072251763612 0 IN IP4 127.0.0.1
s=-
t=0 0
a=msid-semantic: WMS 
a=group:BUNDLE audio video
m=audio 7320 UDP/TLS/RTP/SAVPF 102 9 0 8 97 13 118 101
c=IN IP4 192.168.8.7
a=rtpmap:102 opus/48000/2
a=rtpmap:9 G722/8000

voluntas

### KERNEL TUNING ###

# Increase size of file handles and inode cache
fs.file-max = 2097152

# Do less swapping
vm.swappiness = 10
vm.dirty_ratio = 60
vm.dirty_background_ratio = 2

voluntas

Firefox 56 simulcasting: offer (browser)
----------------------------------------
v=0
o=mozilla...THIS_IS_SDPARTA-56.0a1 6240803254751085187 0 IN IP4 0.0.0.0
s=-
t=0 0
a=fingerprint:sha-256 E7:F5:25:C8:88:0D:4E:7D:B1:49:60:BF:AB:8D:84:5B:F6:D6:A9:74:FB:F1:2A:82:16:65:5B:AF:0F:23:02:BE
a=group:BUNDLE sdparta_0 sdparta_1 sdparta_2
a=ice-options:trickle
a=msid-semantic:WMS *

voluntas

Firefox 54 simulcasting: offer (browser)
----------------------------------------
v=0
o=mozilla...THIS_IS_SDPARTA-54.0 8032511078174487015 0 IN IP4 0.0.0.0
s=-
t=0 0
a=fingerprint:sha-256 3C:22:03:71:82:EA:7B:46:DB:4E:A8:9E:FE:5F:0C:83:3E:65:CB:CF:A0:59:F7:A1:58:FB:DC:9E:6C:E0:8D:FA
a=group:BUNDLE sdparta_0 sdparta_1 sdparta_2
a=ice-options:trickle
a=msid-semantic:WMS *

voluntas

Chrome simulcasting: offer (browser)
------------------------------------
v=0
o=- 4308117731863853442 2 IN IP4 127.0.0.1
s=-
t=0 0
a=group:BUNDLE audio video data
a=msid-semantic: WMS ZUJWk5rc0kNVekwY7gpiWsPbvAa6UbZWQI4A
m=audio 9 UDP/TLS/RTP/SAVPF 111 103 104 9 0 8 106 105 13 110 112 113 126
c=IN IP4 0.0.0.0

voluntas

How to setup Let's Encrypt for Nginx on Ubuntu 16.04 (including IPv6, HTTP/2 and A+ SLL rating)

There are two modes when you don't want Certbot to edit your configuration:

• Standalone: replaces the webserver to respond to ACME challenges
• Webroot: needs your webserver to serve challenges from a known folder.

Webroot is better because it doesn't need to replace Nginx (to bind to port 80) to renew certificates.

In the following, we're setting up mydomain.com to be served from /var/www/mydomain, and challenges will be served from /var/www/letsencrypt.

voluntas

5分で分かったふりができるRust紹介

作成者にもかかわらず、いきなり遅刻しました。ごめんなさい。`Rust Advent Calendar 2013`_、今からでも参加できますのでぜひ。

今日はRustの特徴を簡潔に紹介します。

システムプログラミング & 低レイヤ

voluntas

WebRTC SFU をフルスクラッチで作ってみた

I wrote a WebRTC SFU from scratch

Author:	@voluntas
Translator:	@alanmshelly
Version:	0.0.0
url:	https://voluntas.github.io/