n-johnson

h2d(){
  echo $((16#$@))
}

n-johnson

V="9ad6a83" # Commit hash when modified, known working

START_MODIFIED=$(git log -n 1 --pretty=format:%h -- start.sh) # Last commit start.sh was modified

if [ "$V" != "$START_MODIFIED" ]
then
  echo "UHOH! start.sh was updated, you need to update the custom start file!"
  echo "Expected: [$V] | Retrieved: [$START_MODIFIED]"
else

n-johnson

var http = require('follow-redirects').http;
//top 1000
var domains = ["google.com","facebook.com","youtube.com","yahoo.com","baidu.com","wikipedia.org","qq.com","linkedin.com","live.com","twitter.com","amazon.com","blogspot.com","taobao.com","google.co.in","sina.com.cn","wordpress.com","yahoo.co.jp","yandex.ru","bing.com","ebay.com","google.de","vk.com","hao123.com","163.com","tumblr.com","pinterest.com","google.co.uk","google.fr","googleusercontent.com","microsoft.com","msn.com","ask.com","mail.ru","google.co.jp","google.com.br","weibo.com","apple.com","paypal.com","google.ru","instagram.com","google.com.hk","xvideos.com","blogger.com","google.it","tmall.com","google.es","imdb.com","soso.com","craigslist.org","sohu.com","360.cn","go.com","amazon.co.jp","stackoverflow.com","bbc.co.uk","xhamster.com","google.com.mx","neobux.com","google.ca","fc2.com","cnn.com","imgur.com","alibaba.com","wordpress.org","flickr.com","espn.go.com","adcash.com","huffingtonpost.com","odnoklassniki.ru","t.co","conduit.com","thepira

n-johnson

const subnetMap = { 8: 16777214, 9: 8388606, 10: 4194302, 11: 2097150, 12: 1048574, 13: 524286, 14: 262142, 15: 131070, 16: 65534, 17: 32766, 18: 16382, 19: 8190, 20: 4094, 21: 2046, 22: 1022, 23: 510, 24: 254, 25: 126, 26: 62, 27: 30, 28: 14, 29: 6, 30: 2, 31: 1};

const AWS_IP_RANGE_URL = 'https://ip-ranges.amazonaws.com/ip-ranges.json';
const CORS_URL = 'https://jsonp.afeld.me/?url=' + AWS_IP_RANGE_URL;

function filterUnique(p, c, i) { ~~p.indexOf(c) && p.push(c); return p; };

fetch(CORS_URL)
  .then(function(response) {
    response

n-johnson

_ssl() {
  local adr=$1;
  local _d;
  
  _d=$(
      echo -n \
         | openssl s_client -connect "$adr":443 2>/dev/null \
         | openssl x509 -noout -text \
  );
  

n-johnson

_dig() {
  local domain=$1;
  local type=$2;

  dig "$domain" -t "$type" \
    | sed -n '/;; ANSWER SECTION/,/^$/p' \
    | sed '1d' \
    | sed '/^$/d';
}

n-johnson

Latency Comparison Numbers
--------------------------
L1 cache reference                            0.5 ns
Branch mispredict                             5   ns
L2 cache reference                            7   ns             14x L1 cache
Mutex lock/unlock                            25   ns
Main memory reference                       100   ns             20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy              3,000   ns
Send 1K bytes over 1 Gbps network        10,000   ns    0.01 ms
Read 4K randomly from SSD*              150,000   ns    0.15 ms

n-johnson

# req: prips

curl https://ip-ranges.amazonaws.com/ip-ranges.json \
  | grep -B 2 CLOUDFRONT \
  | grep 'ip_prefix' \
  | awk '{ print $2 }' \
  | tr -d '",' \
  | xargs -I{} prips {}

n-johnson

#!/bin/bash

host01_temp() {
  local key="host01.cpu.temp"
  local temp=$(ssh stats@10.0.0.1 sensors | grep 'Physical id' | awk -F':' '{print $2 }' | awk '{print $1}' | tr -d '+' | tr -d '°C')

  echo "$key $temp"
}

statsd `host01_temp`

n-johnson

perl -MTime::HiRes -e 'printf("%.0f\n",Time::HiRes::time()*1000)'