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Improve your Ruby application's memory usage and performance with jemalloc
Using a different memory allocation library, you can reduce your Ruby application’s memory usage and response time. Learn how to use it on a hosting service (like Heroku or Scalingo) or your own server.
ruby  memory  performance  how-to  heroku  server  configuration  library 
april 2018 by rtopitt - Strong Ciphers for Apache, nginx and Lighttpd
The above ciphers are Copy Pastable in your nginx, Lighttpd or Apache config. These provide Strong SSL Security for all modern browsers, plus you get an A+ on the SSL Labs Test. In short, they set a strong Forward Secrecy enabled ciphersuite, they disable SSLv2 and SSLv3, add HTTP Strict Transport Security and X-Frame-Deny headers and enable OCSP Stapling (except on Lighttpd, it does not support that yet).
apache  nginx  ssl  sysadmin  security  ciphers  how-to  dica  boa_prática  configuration  webserver 
february 2017 by rtopitt
Arch Linux - Best distro ever? |
Guia de instalação e configuração do Arch Linux no desktop / notebook, com foco em desenvolvimento.
archlinux  linux  disto  sistema_operacional  software_livre  how-to  dica  instalação  configuration  performance  desktop  desenvolvimento 
january 2017 by rtopitt
Preparing a new Mac
I decided to bite the bullet and upgrade my trusty Macbook Pro from Mavericks to Yosemite and taken the opportunity to give the machine a bit of a cleanup. I thought a quick post about how I configure everything I need to do my work.
mac_os_x  how-to  dica  setup  configuration  reference  homebrew  instalação 
october 2016 by rtopitt
Revelry Labs | Making a Rails app without a database
Occasionally, you may want to build a Rails app without ActiveRecord or a database. Since Rails optimizes for the most common case (a database-backed app), it refuses to start the server without a database connection by default.
rails  database  tip  how-to  configuration 
october 2014 by rtopitt
How to Create a Large Wireless Network
One day I had to install a network for 8,500 square feet (850 m2) of living space, all on one level, and cover almost an acre of land outdoors. That required several wireless devices, all connected together.

It's easy to do, but only if you know which secret boxes to click in the set up program.

Oddly no one has written down how to do it — until now.

Here's how.
network  apple  router  internet  wireless  ethernet  how-to  tip  instalação  configuration  airport  wi-fi 
september 2014 by rtopitt
Structuring Sinatra Applications
I love Sinatra. I use it for practically everything. For me, Sinatra has the perfect blend of simplicity and abstraction. I can understand the full stack, dip into the source when I need to, and extend the framework how I see fit.

However the bare-bones nature of Sinatra can come at a cost. Sinatra leaves much more of the decision making around your application's structure, layout and libraries up to you. This can be a bit daunting if you're just getting into Ruby web app development, which I think is one of the reasons why Sinatra is mainly the realm of more experienced developers looking for a bloat-free alternative to Rails.

Over the years I've put together a few conventions that I share between all my Sinatra apps, and in this article I'm going to elaborate on those. I've also created a gem called Trevi which, if you want to follow this approach, will go ahead and do all the manual lifting for you by generating a Sinatra scaffold.
webapp  sinatra  ruby  tip  how-to  configuration  gem  estrutura 
july 2014 by rtopitt
Usando campos case-insensitive no PostgreSQL - Simples Ideias
Faz algum tempo que venho usando o PostgreSQL em vez de MySQL, por diversos motivos; o principal deles é que o PostgreSQL é muito melhor. Mas nem tudo funciona exatamente da mesma forma que o MySQL. Uma das principais mudanças é que campos de texto são case-sensitive.
postgresql  how-to  rails  sql  importante  busca  configuration  tip 
may 2014 by rtopitt
Fucking Shell Scripts | The easiest, most common sense server configuration management tool
Completely confused by Chef? Blowing your brains out over Ansible? Wanna just use fucking shell scripts to configure a server? Read on! Wraps up the fog gem, so it can be used on any cloud service, including AWS, rackspace, etc. We've intentionally designed this tool to be insanely easy to use.
bash  shell  devops  aws  gem  deploy  software_livre  cloud  server  configuration 
march 2014 by rtopitt
I just leave it here — The conference wifi checklist
After organizing some conferences and attended even more I often experienced the struggle to setup a working conference WiFi. Although learnings and mistakes has been made multiple times I couldn’t find a easy to follow resource to get the basics right, so here is my take to create such resource. Its separated into two main sections “what to get” and “what to do”.
wi-fi  top10  conferência  how-to  internet  hardware  reference  network  configuration  tip 
september 2013 by rtopitt
Exploring Elasticsearch - Tutorial and Book
This book is the guide to elasticsearch that I wanted to read when I was just getting my feet wet. This book is meant to provide comprehensive elasticsearch tutorials and guides suitable for both beginners and intermediate users. The lessons in this book walk readers through both simple and advanced tasks. There is a massive amount of material to cover when it comes to elasticsearch and Lucene, material I've done my best to make clear and understandable.

You can read this book for free online.
livro  elasticsearch  busca  full-text  e-book  manual  reference  server  configuration 
september 2013 by rtopitt
How the NSA snoop-proofs its Macs | Macworld
Back in 2010 the NSA published “Hardening Tips for Mac OS X 10.6 ‘Snow Leopard’” (PDF), a terse, two-page pamphlet recommending a series of security precautions. The agency hasn’t updated that pamphlet for more recent versions of OS X—so I thought I’d do so in the agency’s stead.
apple  top10  nsa  mac_os_x  privacidade  geek  reference  security  configuration  tip 
september 2013 by rtopitt
A better way to manage the Rails secret token - Daniel Fone
tl;dr Don’t hardcode secret tokens. Load them from the environment like this…
rails  ruby  env  token  segredo  cookie  environment  security  server  configuration  tip 
june 2013 by rtopitt
The Always Up-to-Date Guide to Building a Hackintosh [OS X 10.8.4]
Building a hackintosh—that is, installing Mac OS X on non-Apple hardware—used to require extremely restricted hardware choices and quite a bit of know-how. Now your options are vast and the installation process is fairly simple. With that in mind, here is our always up-to-date guide to building a hackintosh that will walk you through purchasing compatible parts, building your machine, and installing OS X all on your own.
mac_os_x  hackintosh  how-to  desktop  computador  diy  instalação  sistema_operacional  geek  apple  pc  configuration 
june 2013 by rtopitt
Sublime Text (2) - Drew Barontini
The usefuless of this setup guide will vary based on your personal preferences for how your text editor should function, but it should help with the initial setup of Sublime Text. Let's get started.
editor  texto  how-to  personalização  sublime  configuration  tip  programming 
may 2013 by rtopitt
Best of both worlds: Setting up Wi-Fi for iOS on 2.4 and 5GHz | Ars Technica
Since about 2007, Apple has also built support for 802.11n Wi-Fi on the 5GHz band into its computers and Airport line of Wi-Fi base stations. Now, the iPhone 5, the latest iPod touch, the fourth-generation iPad, and the iPad mini also have that support. So, how do you set up a Wi-Fi network that makes the most of this confluence of Wi-Fi bands?
apple  airport  wi-fi  2.4ghz  5ghz  extensão  roteador  internet  velocidade  interferência  network  configuration  tip 
november 2012 by rtopitt
MongoDB Gotchas & How To Avoid Them
Dicas de erros comuns quando se usa MongoDB e como evitá-los
mongodb  nosql  schema  server  compilation  configuration  tip  document_database  database 
november 2012 by rtopitt
Lion Tweaks 2.0 | Developer Fredrik Wiker - Mountain Tweaks and Lion Tweaks
Lion Tweaks is the best and most popular tweaking tool for Lion. 300.000 users can't be wrong!
mac_os_x  lion  10.7  tweak  grátis  doação  desktop  configuration 
october 2012 by rtopitt
Mountain Tweaks 1.0.4 | Developer Fredrik Wiker - Mountain Tweaks and Lion Tweaks
Brand new tweaking tool to deal with the annoying changes in OS X 10.8 Mountain Lion.
mac_os_x  mountain_lion  10.8  tweak  desktop  grátis  doação  configuration 
october 2012 by rtopitt
Instalando o Ruby no Ubuntu Precise - Simples Ideias
Decidi criar meu próprio repositório Debian com a última versão estável do Ruby (que neste momento é a versão 1.9.3-p194). A ideia é ter um repositório sempre à mão, tanto para o ambiente de desenvolvimento, quanto para a produção. O pacote que está disponível é para as versões 32-bit e 64-bit do Ubuntu Precise, mas se você está rodando qualquer distro baseada no Debian, poderá instalar também.
ruby  ubuntu  pacote  deb  apt  instalação  how-to  repositório  server  configuration 
october 2012 by rtopitt
Sublime Text 2 for Ruby - Code Climate Blog
I’ve helped a handful of new ST2 users get setup over the past few months. Here are the steps I usually follow to take a new install from good to awesome.
editor  ruby  rspec  sublime_text  importante  plugin  instalação  configuration  tip  programming 
june 2012 by rtopitt
Server Setup · ryanb/railscasts Wiki
These are the steps I took to set up the RailsCasts site on a Linode with Ubuntu 10.04 LTS installed.
linode  rails  how-to  instalação  ubuntu  10.04  linux  reference  server  configuration 
april 2012 by rtopitt
Adventures in Scaling, Part 2: PostgreSQL
This time around I wanted to focus on how to setup PostgreSQL on a dedicated server instance. In addition, I will cover how to tweak the configuration settings as a first-pass towards optimizing database performance and explain which parameters are the most important.
postgresql  performance  how-to  instalação  server  configuration  tip  database 
april 2012 by rtopitt
One Thing Well | Disable Local Time Machine Backups
If you’re using a small drive, you can disable local backups with tmutil, like so:

sudo tmutil disablelocal
backup  mac_os_x  time_machine  desligar  configuration  tip 
april 2012 by rtopitt
Configurar seu Mac para simular uma impressora (PDF-printer) | AURELIO.NET
No Mac isso é trivial, pois sempre que você manda imprimir algo, aparece a opção Salvar como PDF. Então não importa se é um email, um site ou um documento que você está editando. É só mandar imprimir e com o clique de um botão você poderá arquivá-lo em um PDF. Depois, se precisar, você imprime o PDF numa impressora de verdade.

Mas e se você estiver em outra máquina na rede local (Windows, Linux) ou no celular e quiser imprimir, digo, salvar como PDF em seu Mac?

Uma solução bacana é configurar seu Mac para ele fingir ser uma impressora na rede, assim você pode mandar “imprimir” coisas nele. Na verdade, o que ele fará é salvar um PDF daquilo que você mandou imprimir. Para os outros computadores essa operação é transparente, eles enxergarão seu Mac como uma impressora de verdade e nunca saberão que foram enganados :)
mac  impressora  pdf  impressão  instalação  network  configuration  tip 
april 2012 by rtopitt
How to play MAME ROMs (games) in OS X – Simple Help
Today I stumbled across an old CD I have full of MAME ROMs. I thought I’d see if you could play them in OS X, and sure enough it’s actually quite straight forward. This brief tutorial will guide you in playing MAME games in OS X
mac_os_x  mame  how-to  instalação  emulador  videogame  fliperama  jogo  configuration  tip 
january 2011 by rtopitt
How to Build a Hackintosh Mac and Install OS X in Eight Easy Steps
Building a Hackintosh from scratch—that is, installing Mac OS X on non-Mac hardware—has never been easier, and the final product has never performed better. Here's how it works.
apple  hack  hackintosh  how-to  os  sistema_operacional  os_x  mac  pc  instalação  geek  configuration 
october 2010 by rtopitt
Logwatch Log Monitoring - Monitor System Logs with Logwatch on Ubuntu 10.04 (Lucid) - Linode Library
Logwatch is a utility used to monitor system logs and create reports. These reports include failed login attempts, successful login attempts, and storage space used/available.
logwatch  log  linux  ubuntu  10.04  lucid  how-to  instalação  server  configuration 
september 2010 by rtopitt
RVM and cron in production
Como usar cron com RVM em produção, e dicas de uso de RVM em produção
importante  ruby  produção  deploy  how-to  cron  instalação  server  configuration  tip 
september 2010 by rtopitt
Automating partitioning, sharding and failover with MongoDB « Boxed Ice Blog
This post will take you through the basics of setting up a MongoDB cluster using auto sharding and ensuring you have full failover using replica sets.
mongodb  replicação  sharding  nosql  backup  how-to  server  configuration  tip  document_database  database 
august 2010 by rtopitt
Organizando seus projetos Ruby com RVM « Fernando Luizão
Vou explicar como eu costumo trabalhar, meu workflow básico e também algumas dicas de uso do RVM.
rvm  ruby  rails  shell  bash  configuration  tip  programming 
august 2010 by rtopitt
MX Lookup Tool - Check your DNS MX Records online - MxToolbox
This test will list MX records for a domain in priority order. The MX lookup is done directly against the domain's authoritative name server, so changes to MX Records should show up instantly. You can click Diagnostics , which will connect to the mail server, verify reverse DNS records, perform a simple Open Relay check and measure response time performance. You may also check each MX record (IP Address) against 147 DNS based blacklists . (Commonly called RBLs, DNSBLs)
email  dns  spam  black_list  internet  mx  utilidade  webapp  consulta  security  configuration 
august 2010 by rtopitt
Apache SSL Guides - Configure SSL for Secure Websites Using Apache 2 on Ubuntu 10.04 LTS (Lucid) - Linode Library
This guide will assist you with enabling SSL for websites served under the Apache web server. It is assumed that you've completed the steps detailed in our getting started guide, and that you've successfully set up Apache for serving virtual hosts as outlined in our Apache 2 on Ubuntu 10.04 LTS (Lucid) guide. These steps should be performed via an SSH session to your Linode as the root user.
apache  ubuntu  lucid  10.04  ssl  https  how-to  instalação  linode  server  configuration 
august 2010 by rtopitt
Memory-hungry Ruby daemons
My takeaway: if you own a Ruby daemon, you need to tune the heap to ensure it does not take too much memory!
ruby  memória  daemon  performance  ree  rails  importante  riopro  server  configuration  tip 
august 2010 by rtopitt
MongoDB (Single-Server) Data Durability Guide | The Buzz Media
In this guide I want to outline a number of ways you can increase your single-server durability using MongoDB as well as some optional safer driver behaviors you can make use of to ensure fsync’ing as well as synchronous writes and lastly a tip on keeping your data more aggressively synced across all the nodes in your MongoDB cluster.
mongodb  importante  durabilidade  otimização  performance  riopro  pittlandia  security  server  configuration  tip  document_database  database 
july 2010 by rtopitt
Getting started with Chef -- A tutorial - Momoro Machine
Chef is a tool for turning your servers into code. Chef is awesome. It took me a while to realize it, though. After setting up a mysql slave server for the fifth time, I decided that I was done manually configuring servers. Chef seemed like an obvious choice. It took me about two days of hacking to figure out exactly how to get it to work. This post aims to help small companies with 5-10 servers get started with chef. I recommend following the directions in order. Before you know it, you’ll be cookin’ like a master!
chef  how-to  instalação  importante  sysadmin  ruby  server  compilation  configuration  tip 
july 2010 by rtopitt
Kisko Labs - Rails 3, Resque, and Devise
So you have your fancy new Rails 3 app working with some Resque awesomeness, but now you’d like to integrate the Resque web interface into your administration. Easy with Rails 3’s new mountable Rack apps!
resque  rails  3  integração  rack  how-to  devise  autenticação  rota  configuration 
july 2010 by rtopitt
Tutorial de instalação, configuração e uso do Hudson como servidor de integração contínua, usando RVM para criar ambientes separados de gems para cada projeto
hudson  how-to  integração_contínua  ci  java  ubuntu  instalação  teste  importante  server  configuration  tip 
june 2010 by rtopitt
Apague o som da vuvuzela da sua TV – Re:Bit
Não aguenta mais ouvir as cornetas africanas? Tem solução.
vuvuzela  som  tv  ajuste  hertz  copa_do_mundo  futebol  configuration  tip  africa  fans 
june 2010 by rtopitt
dougsland - Linux e o Sistema Brasileiro de TV Digital
PixelView PlayTV USB SBTVD, receptor de TV digital USB full HD que funfa no Linux
linux  tv  tv_digital  receptor  usb  how-to  vlc  wishlist  configuration 
june 2010 by rtopitt
Varias apps Rails no mesmo domínio com Apache + Passenger | :marciogm
Para ter múltiplas apps Rails no mesmo domínio é fácil, basta configurar os seguintes arquivos
rails  apache  passenger  how-to  webapp  server  configuration 
june 2010 by rtopitt
How To: Kick Your Torrent Addiction With Usenet
Usenet: Everyone's heard of it, nobody uses it. This is ridiculous. Not only is it a fantastic way to download - it's not that hard to use. Here's how to drop your torrent habit once and for all, with Usenet.
download  usenet  torrent  bittorrent  geek  importante  how-to  instalação  internet  network  configuration 
may 2010 by rtopitt
Top 20 Nginx WebServer Best Security Practices
This page collects hints how to improve the security of nginx web servers running on Linux or UNIX like operating systems.
nginx  top10  linux  http  security  server  configuration  tip 
may 2010 by rtopitt
Coding Horror: So You'd Like to Send Some Email (Through Code)
Dicas para envio de email programaticamente evitando marcações de spam.
importante  how-to  top10  email  spam  dns  envio  server  configuration  tip  programming 
may 2010 by rtopitt
How to: Install a Debian/Ubuntu package (.deb) cache server - apt-cacher | Linux Operating System - Debian, Ubuntu, Fedora, Gentoo, Arch
If you have more than one PC using Debian or Ubuntu, you know that upgrading them makes most of the time download the same files more than once, and that is not good for your bandwidth. I usually forward my requests to my Squid (in my office) and to my Personal proxy Polipo at home, it works, but apt-cacher may be a better approach as the way it decides if a file stays or is erased from the cache is more appropriate for .deb package than in Squid or Polipo, as they are optimized for web surfing.
apt  cache  deb  debian  ubuntu  linux  pacote  how-to  importante  riopro  download  server  configuration 
may 2010 by rtopitt
The MongoDB Database System - Using MongoDB to Store Application Data on Ubuntu 10.04 (Lucid) - Linode Library
This document addresses the installation process along with an introduction to fundamental operations and functions for using MongoDB.
mongodb  nosql  lucid  ubuntu  linode  how-to  instalação  importante  server  configuration  database 
may 2010 by rtopitt
The Silent Number: Ubuntu 10.04 Post-Install Guide: What to do and try after installing Lucid Lynx!
Now that you've installed Ubuntu 10.04, Lucid Lynx, a kickass GNU+Linux based free desktop operating system, there's a lot of fun stuff waiting for you to try! This guide lists good things to do after installing Ubuntu, explains new concepts for beginners, and doubles as a very complete list of great software to use aimed at Ubuntu's GNOME desktop environment. Feel free to pick and choose; enjoy!
ubuntu  10.04  lucid  how-to  instalação  linux  geek  importante  configuration  tip 
april 2010 by rtopitt
Bundler 0.9.1 with Capistrano :: rand9 Blog
I found a few blog posts and gists that have bundler specific tasks for cap recipes, so I forked and modified them for your benefit. In order to get the magic of bundler for your app, use the following in your cap recipe.
capistrano  bundler  deploy  importante  rails  webapp  ruby  gem  how-to  server  configuration 
april 2010 by rtopitt
Using .gemspecs as Intended « Katz Got Your Tongue?
If you opt-into this convention, not only will it simplify the install process for your users, but it will make it possible for bundler (and other future automated tools) to build and install your gem (including binaries, proper load path handling and compilation of C extensions) from a local path or git repository.
gem  bundler  how-to  padrão  convenção  ruby  gemspec  configuration 
april 2010 by rtopitt
Performance Tuning for Phusion Passenger (an Introduction) - Alfa Jango Blog » Blog Archive
Before getting too deep into scaling, caching, upgrading your server, etc., there are a few Passenger settings you can tune to wring out the best performance your existing stack. I’ll address these settings with a few rules of thumb we’ve gathered from the Passenger documentation and simple trial-and-error.
passenger  performance  otimização  rails  deploy  apache  nginx  munin  mod_rails  importante  server  configuration 
march 2010 by rtopitt
jQuery with Rails 3 | Josh Huckabee
How do you get jQuery working with Rails 3? I'll try to make this short and sweet.
jquery  javascript  rails  3  importante  instalação  csrf  ujs  framework  how-to  configuration  tip 
february 2010 by rtopitt
JRuby and Rails 3, Sitting in a Tree
Como instalar e criar aplicações Rails 3 com jRuby (1.5)
jruby  rails  3.0  how-to  instalação  jdbc  gem  importante  java  configuration  tip 
february 2010 by rtopitt
How to Add Facebook Chat to Your IM Client - Im - Lifehacker
If you are using a multi-protocol IM client such as Pidign, Adium, or iChat, set-up is really easy—you just add a new Jabber or XMPP account, the username being your, with your password being the same as your Facebook password. If you still haven't gotten a Facebook username (the tag that appears after for your profile page) you'll need to go to your Settings page to enable it.
facebook  chat  xmpp  im  pigdin  adium  how-to  server  configuration  tip 
february 2010 by rtopitt
Como montar um servidor de gems privado | Nome do Jogo
Toda vez que precisamos instalar ou atualizar as bibliotecas em nossos servidores temos de fazer isto manualmente, copiando os arquivos .gem para o servidor e instalando a partir deles. Este processo é realmente irritante, então surgiu a necessidade de montar o no nosso próprio servidor de gems privativo. A solução é ridiculamente simples. Mas como acredito que muita gente também pode se beneficiar disso, segue a receita de bolo.
gem  ruby  how-to  instalação  server  configuration 
december 2009 by rtopitt
Capistrano - Welcome to easyish deployment
Simply put, Capistrano is a tool for automating tasks on one or more remote servers. It executes commands in parallel on all targeted machines, and provides a mechanism for rolling back changes across multiple machines. It is ideal for anyone doing any kind of system administration, either professionally or incidentally.
deploy  capistrano  ruby  rails  webapp  ssh  admin  server  configuration 
october 2009 by rtopitt
TipsAndTricks/TextBasedLinuxInstall - Dropbox Wiki
Como instalar o cliente dropbox em um computador Linux sem X e Nautilus (em servidores)
linux  ubuntu  how-to  dropbox  instalação  webservice  arquivo  importante  server  configuration 
september 2009 by rtopitt
Make Compiz Run Smoothly and Without Tearing | Tombuntu
For a long time it has bothered me that Compiz does not seem to run as smoothly as Metacity on my desktop system. With desktop effects switched off, moving windows around the screen would seem smoother. With desktop effects switched on, I’d also notice tearing in areas of the screen with fast motion including in videos. I was fiddling with Compiz settings recently and managed to fix the problem entirely. Now, if your graphics card struggles to run Compiz this will probably not help you. But if you have a decent graphics card (mine is a nVidia GeForce 8600 GT) give this a try if you have noticed this problem.
compiz  ubuntu  linux  vsync  monitor  desktop  configuration  tip  video 
september 2009 by rtopitt
Criando um servidor smtp com postfix the simple way - mergulhaoinfo on rails
Configurar um servidor se mostrou um problema ainda maior do que eu imaginava. A nossa necessidade é muito simples: precisamos autenticar remotamente num servidor smtp para disparar e-mails. Apenas uma conta autenticada para enviar e-mails. Só isso. Só. Vamos ao trabalho.
postfix  smtp  how-to  importante  instalação  email  ubuntu  9.04  spam  server  configuration 
september 2009 by rtopitt
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