aleixripoll

Playbook useful switches:

ansible-playbook -C -D -i <inventory> [-u <ssh-user>] [-t tag1,tag2] [--list-hosts] [-l host1,host2] play.yml

-C check_mode
-D show file diffs

Ad-hoc commands:

ericbn

" Statusline (requires Powerline font)
set statusline=
set statusline+=%(%{&buflisted?bufnr('%'):''}\ \ %)
set statusline+=%< " Truncate line here
set statusline+=%f\  " File path, as typed or relative to current directory
set statusline+=%{&modified?'+\ ':''}
set statusline+=%{&readonly?'\ ':''}
set statusline+=%= " Separation point between left and right aligned items
set statusline+=\ %{&filetype!=#''?&filetype:'none'}
set statusline+=%(\ %{(&bomb\|\|&fileencoding!~#'^$\\\|utf-8'?'\ '.&fileencoding.(&bomb?'-bom':''):'')

myst3k

#enable each service for boot
systemctl enable nodemanager
systemctl enable adminserver

#then reboot and test

andreicristianpetcu

An Ansible summary

Jon Warbrick, July 2014, V3.2 (for Ansible 1.7)

Configuration file

intro_configuration.html

First one found from of

sepehr

PGP Guide

GPG vs PGP

PGP can refer to two things:

The Pretty Good Privacy software originally written by Phil Zimmermann, and now owned by Symantec. The formats for keys, encrypted messages and message signatures defined by that software. These have now been formalised as the OpenPGP standard. The GPG software is an independent implementation of the OpenPGP standards, so you can use it to exchange encrypted messages with people using other OpenPGP implementations (e.g. Symantec's PGP).

DmitrySoshnikov

/**
 * = LL parser =
 *
 * by Dmitry Soshnikov <dmitry.soshnikov@gmail.com>
 * MIT Style license
 *
 * Often one can see manually written LL parsers implemented as
 * recursive descent. Approach in this diff is a classical parse table
 * state machine.
 *

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

soarez

How to setup your own CA with OpenSSL

For educational reasons I've decided to create my own CA. Here is what I learned.

First things first

Lets get some context first.

dergachev

Vagrant Setup

This tutorial guides you through creating your first Vagrant project.

We start with a generic Ubuntu VM, and use the Chef provisioning tool to:

• install packages for vim, git
• create user accounts, as specified in included JSON config files
• install specified user dotfiles (.bashrc, .vimrc, etc) from a git repository

Afterwards, we'll see how easy it is to package our newly provisioned VM

jkk

## Solve Every Sudoku Puzzle

## See http://norvig.com/sudoku.html

## Throughout this program we have:
##   r is a row,    e.g. 'A'
##   c is a column, e.g. '3'
##   s is a square, e.g. 'A3'
##   d is a digit,  e.g. '9'
##   u is a unit,   e.g. ['A1','B1','C1','D1','E1','F1','G1','H1','I1']