liuha

The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

This creates an archive that does the following:

rsync (Everyone seems to like -z, but it is much slower for me)

a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files.
H: preserves hard-links
A: preserves ACLs

Quick and Dirty Ceph Cluster

This is a bare-bones guide on how to setup a Ceph cluster using ceph-ansible

This guide assumes:

Ansible is installed on your local machine
Eight Centos 7.2 nodes are provisioned and formatted with XFS
You have ssh and sudo access to your nodes

Ansible Setup

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

	# Update System
	sudo apt update && sudo apt upgrade -y

	# Curl
	sudo apt-get install wget gpg
	sudo apt install apt-transport-https curl

	# Clear Favorites
	gsettings set org.gnome.shell favorite-apps "['']"


	FILE SPACING:

	# double space a file
	sed G

	# double space a file which already has blank lines in it. Output file
	# should contain no more than one blank line between lines of text.
	sed '/^$/d;G'

	# basic pfctl control
	# ==
	# Related: http://www.OpenBSD.org
	# Last update: Tue Dec 28, 2004
	# ==
	# Note:
	# this document is only provided as a basic overview
	# for some common pfctl commands and is by no means
	# a replacement for the pfctl and pf manual pages.

	/* Bootstrap 4 - https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css */

	.active
	.alert
	.alert-danger
	.alert-dark
	.alert-dismissible
	.alert-heading
	.alert-info
	.alert-light

	--- # Install mariadb via ansible on centOS
	- hosts: appserver
	user: test
	sudo: yes
	vars:
	mysql_root_password: passwd
	tasks:
	- name: Install MYSQL
	yum:
	name: mariadb-server #debian: mysql-server

	$Hso = New-Object Net.HttpListener
	$Hso.Prefixes.Add("http://+:8000/")
	$Hso.Start()
	While ($Hso.IsListening) {
	$HC = $Hso.GetContext()
	$HRes = $HC.Response
	$HRes.Headers.Add("Content-Type","text/plain")
	$Buf = [Text.Encoding]::UTF8.GetBytes((GC (Join-Path $Pwd ($HC.Request).RawUrl)))
	$HRes.ContentLength64 = $Buf.Length
	$HRes.OutputStream.Write($Buf,0,$Buf.Length)

	<?php

	/**
	* Нахождение кратчайшего пути между двумя произвольными вершинами в графе
	* http://ru.wikipedia.org/wiki/Алгоритм_Дейкстры
	*/
	class Dijkstra
	{
	private $_graph = array();
	private $_nodes = array();