laduke

var http = require('http')
var { html, title, head, body, div } = require('hyperaxe')

var page = html(
  head(title('hi')),
  body(
    div({ id: 'app' })
  )
).outerHTML

laduke

Whitelist by port

drop
  not ethertype ipv4
  and not ethertype arp
  and not ethertype ipv6
;

accept
 dport 6445

laduke

Motivation

Use a Raspberry Pi as a bridge into my home LAN. The pi is plugged into a switch, which is plugged into an airport express, which is plugged into a cable modem; Nothing fancy.

This isn't a tutorial. Just some example output from a working setup.

steps

off the top of my head, here's the order I would do it in:

• make sure plain old device to device zerotier is working with my LAN/Router/Firewall/ISP

laduke

var daggy = require('daggy')

const Machine = daggy.taggedSum('Timer', {
  Yellow: [],
  Green: [],
  Red: []
})

Machine.prototype.timer =
  function () {

laduke

(defun aj-javascript/post-init-mmm-mode ()
  (with-eval-after-load 'rjsx-mode
    (mmm-add-classes '((yo
                        :submode web-mode
                        :front "html`"
                        :back "`"
                        :face mmm-declaration-submode-face)))
    (mmm-add-mode-ext-class 'rjsx-mode nil 'yo)
    (setq mmm-parse-when-idle 't)
    ))

laduke

Common ZeroTier Rules Engine question

• Non-servers can talk to servers, but not each other
• Kind of like Client Isolation on some WiFi controllers

Rules

# Allow only IPv4, IPv4 ARP, and IPv6 Ethernet frames. Typical default
drop
not ethertype ipv4
and not ethertype arp

laduke

//    maybeToFuture :: a -> Maybe b -> Future a b
const maybeToFuture = S.curry2((x, maybe) =>
  S.maybe(Future.reject(x), Future.of, maybe)
);

//also 
/*
Aldwin Vlasblom @Avaq Aug 14 05:12
I generally have two strategies for dealing with a Future(Just(x)):
Using maybeToFuture. @davidchambers just posted an implementation. I use this when Nothing represents an actual error in the code (one that can only be recovered from by my generic error recovery procedure, which usually reports the error and crashes the process).

laduke

// Courtesy https://gitter.im/sanctuary-js/sanctuary

//    maybeToFuture :: a -> Maybe b -> Future a b
const maybeToFuture = S.curry2((x, maybe) =>
  S.maybe(Future.reject(x), Future.of, maybe)
);

//  Collapse a `Future String (Maybe Integer)` into a `Future String Integer`.
S.chain(maybeToFuture('parseInt: "XXX" does not represent an integer'),
        Future.of(S.Nothing));

laduke

mix phoenix.new --no-ecto hello_phoenix

If I remember correctly, letting ecto in makes it look for postgres on the pi. Could probably easily set it up for sqlite?

cd hello_phoenix

cp ../nerves_examples/hello_network/Bakefile .

Add to server: true to config section in config/prod.exs and change http to a specific port (It didn't seem to work setting PORT env variable, but I only tried once. )

laduke

#!/usr/bin/env zsh

# Takes all my playlists from ~/.mpd/playlists, fixes them up, and creates a
# folder for each, along with the music they reference.

# The sync stage requires an sshd server to run on your phone, as well as the rsync executable.
#   - http://linux.wxs.ro/2011/08/05/rsync-your-android/

MPD_MUSIC_ROOT="${HOME}/Music"			# Root of your MPD library
MPD_PLAYLIST_ROOT="${HOME}/.mpd/playlists"	# MPD playlist folder