mikalv

package main

import (
	"crypto/tls"
	"flag"
	"fmt"
	"io"
	"log"
	"net"
	"net/textproto"

mikalv

{
  "__inputs": [
    {
      "name": "DS_PROMETHEUS",
      "label": "Prometheus",
      "description": "",
      "type": "datasource",
      "pluginId": "prometheus",
      "pluginName": "Prometheus"
    }

mikalv

defmodule Box do
  defmacro __using__(_env) do
    quote do
      import Box
    end
  end

  @doc """
  Define module with struct and typespec, in single line

mikalv

#!/bin/bash
# This script builds a (hopefully) working gcc based cross compiler

# Update to latest stable release
BINUTILS_VERSION=2.27
GMP_VERSION=6.1.2
MPFR_VERSION=3.1.5
MPC_VERSION=1.0.3
ISL_VERSION=0.16.1
GCC_VERSION=6.3.0

mikalv

#!/bin/bash

# Source this file in your .bash_profile e.g.:
#
# source ~/gitcheckouts/vpn_heplers/.vpn_helpers.sh
#
# Note: This script works best with NOPASSWD: ALL configured in your sudoers file:
# /etc/sudoers:
# %admin  ALL=(ALL) NOPASSWD: ALL
#

mikalv

## In no particular order. I'm pulling these from a bookmark folder, I'll work on labeling as I have time. Hope these help. Will be mixing in Linux reference as well. 

Sidenote: the macOS Internals series is amazing, although might be out of reach for some. However if having a hard time deciding (I definitely way) and in budget, In my opinion, they are worth the price. I've worked through Volume II, waiting on Volume III. 
As always, most of what we need in our world can be found open sourced and provided by some of the brightest, but it can be a frustrating journey finding material.

https://www.intezer.com/blog/malware-analysis/elf-malware-analysis-101-linux-threats-no-longer-an-afterthought/
http://timetobleed.com/dynamic-linking-elf-vs-mach-o/
https://github.com/apple/darwin-xnu
https://opensource.apple.com/source/xnu/
https://developer.apple.com/library/archive/documentation/Darwin/Conceptual/KernelProgramming/Architecture/Architecture.html

mikalv

$ErrorActionPreference = "Stop"

$notificationTitle = "Notification: " + [DateTime]::Now.ToShortTimeString()

[Windows.UI.Notifications.ToastNotificationManager, Windows.UI.Notifications, ContentType = WindowsRuntime] > $null
$template = [Windows.UI.Notifications.ToastNotificationManager]::GetTemplateContent([Windows.UI.Notifications.ToastTemplateType]::ToastText01)

#Convert to .NET type for XML manipuration
$toastXml = [xml] $template.GetXml()
$toastXml.GetElementsByTagName("text").AppendChild($toastXml.CreateTextNode($notificationTitle)) > $null

mikalv

Big-O Time Complexities for Elixir data structures

Map [1]

Operation	Time Complexity
Access	O(log n)
Search	O(log n)
Insertion	O(n) for < 32 elements, O(log n) for >= 32 elements [2]
Deletion	O(n) for < 32 elements, O(log n) for >= 32 elements

mikalv

Job Control in ZSH and Bash

All processes in ZSH/Bash under job control are in 3 states: foregrounded, backgrounded and suspended.

# run command in the foreground
command
# run commend in the background

mikalv

There's something out of whack with the consistent hash algorithm used by swarm (libring):

Add 4 nodes all weighted equally (should be 4 x 25%) libring

iex> ring = HashRing.new()
iex> ring = HashRing.add_node(ring, :a@nohost)
iex> ring = HashRing.add_node(ring, :b@nohost)
iex> ring = HashRing.add_node(ring, :c@nohost)
iex> ring = HashRing.add_node(ring, :d@nohost)