cornerot

# Edit this configuration file to define what should be installed on
# your system.  Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running ‘nixos-help’).

{ config, pkgs, ... }:

{
  nix = {
    package = pkgs.nixUnstable;
    extraOptions = ''

cornerot

<?xml version="1.0" encoding="UTF-8"?>
<tag-mapping xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" default-zoom-appear="16"
             profile-name="default-profile" xmlns="http://mapsforge.org/tag-mapping"
             xsi:schemaLocation="http://mapsforge.org/tag-mapping https://raw.githubusercontent.com/mapsforge/mapsforge/master/resources/tag-mapping.xsd">

  <!-- ************* POIS *************** -->

  <!-- HIGHWAY TAGS -->
  <pois>
    <osm-tag key="highway" value="mini_roundabout" zoom-appear="17" />

cornerot

nadeem@myznc:~/go/src$ ls -al dummy
total 12
drwxrwxr-x 2 nadeem nadeem 4096 Jul 20 18:46 .
drwxrwxr-x 6 nadeem nadeem 4096 Jul 20 18:45 ..
-rw-rw-r-- 1 nadeem nadeem  129 Jul 20 18:46 hello.go

nadeem@myznc:~/go/src/dummy$ cat hello.go
// Package dummy contains hello world library.
package dummy

cornerot

# Set pid of nginx master process here
pid=8192

# generate gdb commands from the process's memory mappings using awk
cat /proc/$pid/maps | awk '$6 !~ "^/" {split ($1,addrs,"-"); print "dump memory mem_" addrs[1] " 0x" addrs[1] " 0x" addrs[2] ;}END{print "quit"}' > gdb-commands

# use gdb with the -x option to dump these memory regions to mem_* files
gdb -p $pid -x gdb-commands

# look for some (any) nginx.conf text

cornerot

#!/bin/bash
# save this file as tailc then
# run as: $ tailc logs/supplier-matching-worker.log Words_to_highlight
file=$1

if [[ -n "$2" ]]; then
    color='
    // {print "\033[37m" $0 "\033[39m"}
    /(WARN|WARNING)/ {print "\033[1;33m" $0 "\033[0m"}
    /(ERROR|CRIT)/ {print "\033[1;31m" $0 "\033[0m"}

cornerot

echo -e "\e[1;40m" ; clear ; while :; do echo $LINES $COLUMNS $(( $RANDOM % $COLUMNS)) $(( $RANDOM % 72 )) ;sleep 0.05; done|awk '{ letters="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789@#$%^&*()"; c=$4; letter=substr(letters,c,1);a[$3]=0;for (x in a) {o=a[x];a[x]=a[x]+1; printf "\033[%s;%sH\033[2;32m%s",o,x,letter; printf "\033[%s;%sH\033[1;37m%s\033[0;0H",a[x],x,letter;if (a[x] >= $1) { a[x]=0; } }}'

cornerot

1. Go to the video url you want to download
2. Open devtools into browser (ctrl+shift+i in firefox)
3. Show the network tab
4. Reload tab with video and look into devtools
5. Find line with text 1080p.m3u8 and copy url (like: https://edge-7.facecast.net/secure/VgTub-XSFSFFSFSF/DFSDGDSGDSGGD-pyJiOPQ/34634636/4367546/235235/1080p.m3u8)

6. Download and install Livestreamer
7. Open console and execute: livestreamer "hls://URL_FROM_STEP_5" best -o video1080p.ts

cornerot

Adding 2 nodes to an existing 3-node ZooKeeper ensemble without losing the Quorum

Since many deployments may start out with 3 nodes and so little is known about how to grow a cluster from 3 memebrs to 5 members without losing the existing Quorum, here is an example of how this might be achieved.

In this example, all 5 nodes will be running on the same Vagrant host for the purpose of illustration, running on distinct configurations (ports and data directories) without the actual load of clients.

YMMV. Caveat usufructuarius.

Step 1: Have a healthy 3-node ensemble

cornerot

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#ifdef _MSC_VER
#include <intrin.h> /* for rdtscp and clflush */
#pragma optimize("gt",on)
#else
#include <x86intrin.h> /* for rdtscp and clflush */
#endif

cornerot

#### CentOS: yum install pip ; pip install linode-python ; pip install chube
#### 

- hosts: localhost
  connection: local
  gather_facts: false
  tasks:
  - name: Create linode server
    linode: 
      api_key: '---LINODE-API-KEY-HERE---'