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Submarine Cable Map
A comprehensive and regularly updated interactive map of the world's major submarine cable systems and landing stations.
internet  mapa  cabo  geek  reference  submarino  network 
march 2019 by rtopitt
Is Your Computer Stable?
List of recommended hardware stress test procedures
hardware  test  stress  how-to  reference  memory  cpu  network 
february 2019 by rtopitt
IP Location Finder - Geolocation
Here are the results from a few Geolocation providers. Accuracy of geolocation data may vary from a provider to provider. Test drive yourself, and decide on the provider that you like.

Do you have a problem with IP location lookup? Report a problem.

Is the data shown below not accurate enough? Please read geolocation accuracy info to learn why.
ip  network  tools  location  geolocation  geoip  geo  georeferenciamento  internet 
august 2018 by rtopitt
Stock and flow / Snarkmarket
But I actually think stock and flow is the master metaphor for media today. Here’s what I mean: Flow is the feed. Stock is the durable stuff.
inspiração  web2.0  economia  social_network  network  concept  reference  strategy  artigo 
january 2018 by rtopitt
20+ VPNs Rated on Privacy and Security Side-by-Side
e scored each VPN provider’s privacy protections out of 18 possible points based on the following criteria:
vpn  security  top10  teste  network  privacidade  reference 
february 2017 by rtopitt
[Discussion] Can we protect our work from DNS providers suffering DDoS attacks? |
Dica de como usar um servidor DNS local (rodando Unbound) para se precaver de falhas generalizadas em servidores DNS na internet
dns  tip  how-to  internet  network  geek  ddos  security 
november 2016 by rtopitt
ShareDrop is a free app that allows you to easily and securely share files directly between devices without having to upload them to any server first.
p2p  filesharing  security  senha  sharing  webapp  utilidade  network  criptografia 
september 2016 by rtopitt
ankane/the-ultimate-guide-to-ruby-timeouts: :clock4:
An unresponsive service is worse than a down one. It can tie up your entire system if not handled properly. All network requests should have a timeout.

Here’s how to add timeouts for popular Ruby gems. All have been tested. You should avoid Ruby’s Timeout module. The default is no timeout, unless otherwise specified. Enjoy!
ruby  timeout  programming  github  gem  how-to  tip  reference  library  network 
june 2016 by rtopitt
jlund/streisand: Streisand sets up a new server running L2TP/IPsec, OpenConnect, OpenSSH, OpenVPN, Shadowsocks, sslh, Stunnel, and a Tor bridge. It also generates custom configuration instructions for all of these services. At the end of the run you are g
Silence censorship. Automate the effect.

The Internet can be a little unfair. It's way too easy for ISPs, telecoms, politicians, and corporations to block access to the sites and information that you care about. But breaking through these restrictions is tough. Or is it?
cloud  tor  vpn  security  ansible  network  privacidade  software_livre  ssh  vps  ec2  server 
june 2016 by rtopitt - my traceroute, globally
mtr combines the functionality of the traceroute and ping programs in a single network diagnostic tool. enables you to run mtr from 7 remote locations distributed around the globe.
network  utilidade  ping  mtr  traceroute  webapp 
may 2016 by rtopitt
My External IP address
Página que retorna seu endereço IP externo em vários formatos / várias maneiras.
ip  network  utilidade  geek  external  public  address  api  grátis 
march 2016 by rtopitt
httpry is a specialized packet sniffer designed for displaying and logging HTTP traffic. It is not intended to perform analysis itself, but to capture, parse, and log the traffic for later analysis. It can be run in real-time displaying the traffic as it is parsed, or as a daemon process that logs to an output file. It is written to be as lightweight and flexible as possible, so that it can be easily adaptable to different applications.
http  sysadmin  log  analysis  forensics  network  security  software_livre 
september 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
mitmproxy - home
mitmproxy: a man-in-the-middle proxy. Intercept, modify, replay and save HTTP/S traffic. An interactive console program that allows traffic flows to be inspected and edited on the fly.
http  proxy  ssl  security  https  mitm  network 
september 2014 by rtopitt
Serviço e app de VPN para iOS, OS X, Windows e Android, similar ao Cloak porém mais barato (mas não entra automaticamente em redes desconhecidas como o Cloak).
mac_os_x  ios  vpn  security  network  wi-fi  android  windows 
august 2014 by rtopitt
Cloak VPN - Cloak -
Serviço e app de VPN para iOS e OS X fácil de usar (funciona automaticamente quando conectado a redes não-seguras), mas meio caro.
mac_os_x  ios  vpn  security  network  wi-fi  apple  recommended  webservice  saas 
august 2014 by rtopitt
Penetration Testing Software | Metasploit
A collaboration of the open source community and Rapid7. Our penetration testing software, Metasploit, helps verify vulnerabilities and manage security assessments.
exploit  software_livre  teste  penetração  hacking  network  security 
march 2014 by rtopitt
ngrok - secure introspectable tunnels to localhost
“I want to securely expose a local web server to the internet and capture all traffic for detailed inspection and replay.”

ngrok creates a tunnel from the public internet ( to a port on your local machine. You can give this URL to anyone to allow them to try out a web site you're developing without doing any deployment.

ngrok captures all traffic through the tunnel. It displays information about the HTTP traffic for your inspection. Raw request/response bytes, parsed headers and form data, JSON/XML syntax checking and more are included.

Developing services which consume webhooks can be challenging if the hooks are labor-intensive to generate. Use ngrok's replay request feature to iterate quickly on a new feature without switching contexts to generate new requests.
proxy  firewall  http  replay  ssh  túnel  ferramenta  geek  utilidade  webhook  network  service 
january 2014 by rtopitt
Como escolher o melhor canal WiFi para reduzir interferências e aumentar o desempenho da conexão -
Um utilitário que vem instalado no seu sistema analisa o tráfego e faz uma lista dos melhores canais para você configurar no roteador sem fio e usar o WiFi com menos interferências e mais desempenho.
apple  mac  wi-fi  canal  boa_prática  melhor  conexão  qualidade  interferência  network  tip 
january 2014 by rtopitt
Anatel homologa novos iPhones (e eles serão compatíveis com o nosso 4G)
O iPhone 5S que chegará aqui será o A1457, enquanto o iPhone 5C será o A1507, modelos preparados para França, Reino Unido e Alemanha. Esses são os aparelhos enviados pela Apple para homologação pela Anatel – e que foram aprovados pela agência. Eles são dois dos quatro modelos compatíveis com o LTE banda 7 – o usado nas redes brasileiras. Os outros dois usam TD-LTE e são voltados para redes asiáticas e da Oceania.
iphone  5s  5c  apple  4g  lte  celular  hardware  padrão  compatibilidade  network 
september 2013 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
MAKE | Internet Kill Switch
We’ll show you how to build an unobtrusive basic Internet Kill Switch, and then an over-the-top “dramatic version” that’s a bit more fun to make and use.
interessante  how-to  diy  hardware  hahaha  geek  network  video 
august 2013 by rtopitt
HTTP Status Codes —
Database of HTTP status codes with their IETF + Wikipedia descriptions and helpful code references. Maintained by @citricsquid. New codes and improvements can be commited via the GitHub repository.
http  status  wiki  wikipedia  ietf  internet  reference  network  protocol 
may 2013 by rtopitt
Pagekite - The fast, reliable localhost tunneling solution
The fast, reliable way to make localhost part of the Web.

PageKite makes local websites or SSH servers publicly accessible in mere seconds, and works with any computer and any Internet connection.

It's also 100% Open Source.
túnel  ssh  web  hospedagem  hosting  dns  dinâmico  python  grátis  webapp  localhost  network  server 
may 2013 by rtopitt wildcard DNS for everyone is a magic domain name that provides wildcard DNS
for any IP address. Say your LAN IP address is
Using, resolves to resolves to resolves to resolves to

...and so on. You can use these domains to access virtual
hosts on your development web server from devices on your
local network, like iPads, iPhones, and other computers.
No configuration required!
dns  webapp  webservice  local  desenvolvimento  utilidade  wildcard  network 
april 2013 by rtopitt
Paypal, Reddit and The Power Of Fakin’ It | Platform Thinking
This is because there is no inherent value in the standalone product for a user (eBay, Quora) without the participation of users from the other side who create complementary products (goods for sale, answers). When users come to the platform, they need to get an indication of activity. Some community owners, as in the case of MegaUpload, solve this by creating a false aura of activity using a variety of methods.
internet  web2.0  seeding  falso  mentira  negócio  comunidade  fake  network  service  user 
march 2013 by rtopitt
Tunnelr VPN Service Provider - SSH Tunnels - VPN Tunnels
Serviço de tunelamento de acesso via VPN, SSH e PPTP com tráfico ilimitado.
openvpn  ssh  vpn  túnel  ilimitado  internet  criptografia  webapp  network  security  service 
february 2013 by rtopitt
Dados estatísticos do uso da internet no Brasil, largura de banda, por hora, dia, semana, ano e década, país inteiro e por estado.
internet  tráfego  gráfico  brasil  estatística  banda  pico  horário  network 
december 2012 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
Tenha certeza de qual iPad você está comprando! | MacMinds
O modelo 1403 não funciona na rede das operadoras brasileiras, podendo ser utilizado somente no WiFi. Para ficar facil o reconhecimento, todos os modelos do Novo iPad começam com A14xx, as versões anteriores começam A13xx ou A12xx. Este número é encontrado na parte traseira do dispositivo.
ipad  modelo  brasil  compatibilidade  apple  3g  celular  network  tip 
april 2012 by rtopitt
Private Eye | Free Network Monitor for Mac
Private Eye is a free network monitor for Mac OS X Lion. When an app makes a network connection, you see it instantly on your screen. There's no delay and you don't have to use a separate recording mode.
mac_os_x  lion  firewall  monitoramento  grátis  network 
april 2012 by rtopitt
Propagated Yet? - DNS Propagation Notifier
Has my website's DNS at FOO propagated to BAR yet?

Verifica propagação de DNS
dns  domínio  teste  webapp  utilidade  propagação  internet  ip  network  service 
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
lcamtuf's blog: HTTP cookies, or how not to design protocols
For as long as I remember, HTTP cookies have been vilified as a grave threat to the privacy of online browsing; wrongly so. That said, the mechanism itself is a very interesting cautionary tale for security engineers - and that will be the theme of today's feature.
http  cookie  história  geek  internet  blog  network  protocol  security 
november 2010 by rtopitt
Welcome to DenyHosts
DenyHosts is a script intended to be run by Linux system administrators to help thwart SSH server attacks (also known as dictionary based attacks and brute force attacks). If you've ever looked at your ssh log (/var/log/secure on Redhat, /var/log/auth.log on Mandrake, etc...) you may be alarmed to see how many hackers attempted to gain access to your server. Hopefully, none of them were successful (but then again, how would you know?). Wouldn't it be better to automatically prevent that attacker from continuing to gain entry into your system?
importante  login  ssh  linux  ubuntu  pittlandia  riopro  log  bloqueio  network  security  server 
october 2010 by rtopitt
Coding Horror: Because Everyone Needs a Router
Recomendações de roteadores wireless N baratos e compatíveis com dd-wrt e/ou tomato
roteador  review  linux  software_livre  wireless  hardware  dd-wrt  tomato  wishlist  buffalo  netgear  router  firewall  network  tip 
october 2010 by rtopitt
Speed Tracer - Google Web Toolkit - Google Code
Speed Tracer is a tool to help you identify and fix performance problems in your web applications. It visualizes metrics that are taken from low level instrumentation points inside of the browser and analyzes them as your application runs. Speed Tracer is available as a Chrome extension and works on all platforms where extensions are currently supported (Windows and Linux). Using Speed Tracer you are able to get a better picture of where time is being spent in your application. This includes problems caused by JavaScript parsing and execution, layout, CSS style recalculation and selector matching, DOM event handling, network resource loading, timer fires, XMLHttpRequest callbacks, painting, and more.
google  chrome  extensão  plugin  performance  http  webapp  importante  analysis  network 
june 2010 by rtopitt
Phorm desembarca no Brasil, trazida pela Oi » Tecnocracia
O meu amigo Knutz avisou lá no CyberVida sobre a vinda do Phorm para o Brasil. A solução, que já foi banida na Europa, enfrenta um sério movimento de resistência na Internet, inclusive com grandes nomes se juntando ao protesto. A Phorm fornece uma forma de rastrear os passos do usuário na Internet e (teoricamente) utilizá-los para fornecer publicidade direcionada. Veja como bloqueá-lo.
phorm  privacidade  oi  internet  brasil  geek  plugin  navegação  firefox  cookie  network  security 
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
Local DNS Cache for Faster Browsing « Ubuntu Blog
You can run a DNS cache on your computer. This will speed up the process of looking up domain names when browsing. The difference is about 30-60 ms for me. Multiply that difference by the number of websites you visit a day for an approximate estimate of the speed improvement. Of course, all this would be worth it if it weren’t for the fact that setting this up is way too easy.
dns  dnsmasq  how-to  linux  ubuntu  cache  performance  network 
may 2010 by rtopitt
Mapa Wi-Fi do Rio de Janeiro - Google Maps
Lista da internet sem fio no Rio de Janeiro. Pontos espalhados em restaurantes, shoppings e outra partes da cidade.
internet  mapa  wireless  wi-fi  conexão  rio_de_janeiro  geek  mashup  network  tip 
february 2010 by rtopitt
namebench - Project Hosting on Google Code
Are you a power-user with 5 minutes to spare? Do you want a faster internet experience? Try out namebench. It hunts down the fastest DNS servers available for your computer to use. namebench runs a fair and thorough benchmark using your web browser history, tcpdump output, or standardized datasets in order to provide an individualized recommendation. namebench is completely free and does not modify your system in any way. This project began as a 20% project at Google.
linux  mac  windows  benchmark  performance  internet  dns  google  python  velocidade  importante  geek  software_livre  network 
december 2009 by rtopitt
Not Using IPAddr Should Result In You Being Mauled By A Bear
I wrote a huge rant about stupid people storing IP addresses as a CHAR(15) in the DB. I then gave up and realized stupid people will remain stupid, and intelligent people will learn. Use an INT(4), it’s a huge saving in size and indexing will be fast.
ruby  ip  gem  ipaddr  endereço  network  tip  database 
september 2009 by rtopitt
Como fazer cache de vídeos do youtube no Squid |
Do ano passado pra cá, o crescimento de vídeos explodiu no mundo. Um problema notado, porém, foi que os vídeos não eram cacheados no squid.
how-to  squid  proxy  cache  youtube  google  network  tip  video 
june 2009 by rtopitt
A Simple Introduction To Computer Networking | BetterExplained
Here's what I wish someone told me when learning how computers communicate.
artigo  explicação  geek  http  informática  internet  tcp  network  protocol 
may 2009 by rtopitt
Firefly Media Server :: Home Page
The best open-source media server for the Roku SoundBridge and iTunes (previously known as "mt-daapd")
daap  linux  música  mp3  software_livre  streaming  network  server 
may 2009 by rtopitt
Tomato Firmware |
Tomato is a small, lean and simple replacement firmware for Linksys' WRT54G/GL/GS, Buffalo WHR-G54S/WHR-HP-G54 and other Broadcom-based routers. It features a new easy to use GUI, a new bandwidth usage monitor, more advanced QOS and access restrictions, e
diy  firmware  linksys  roteador  software_livre  tomato  wireless  network 
may 2009 by rtopitt
Usando como proxy a sua conta no provedor de hospedagem «
Como usar uma conexão SSH como proxy SOCKS para conexões seguras em uma rede não confiável e/ou para escapar de filtros de conteúdo ou firewalls mais simples
firewall  how-to  internet  proxy  socks  ssh  network  server 
may 2009 by rtopitt
Neatorama » Blog Archive » 10 Things You Should Know About the Internet
Ah, the Internet: you use it every day for school, work or fun. In such a short period of time, the Net has grown into an essential every day thing that it's hard to imagine life without it. But how much do you know about the Internet?
artigo  computação  geek  história  internet  top10  network 
may 2009 by rtopitt
Text Link Ads | Mobile Text Advertising | AdMob
Programa de disponibilização de anúncios dentro de aplicações para iPhone
iphone  iphone_app  propaganda  advertisement  network 
may 2009 by rtopitt
Feature: Ensure a Fast Internet Connection When You Need It
You can set up Quality of Service (QoS) rules on your router to distribute bandwidth to your different gadgets and applications based on your priorities.
how-to  internet  qos  router  network  tip 
may 2009 by rtopitt
HashCode » Impressão direta via TCP/IP com RubyGhost
Geralmente as impressoras de médio e grande porte disponibilizam uma porta TCP conhecida como ‘porta bruta’ de número 9100. Demonstrarei aqui uma forma de imprimir diretamente neste tipo de printer, para o nosso exemplo usaremos o driver postscript
gem  how-to  impressora  pdf  postscript  rghost  ruby  network 
may 2009 by rtopitt
OpenDNS | Providing A Safer And Faster Internet
OpenDNS is a better DNS, free to all. OpenDNS uses its distributed network of DNS servers to speed up your Internet experience, increase reliability, improve security and make DNS smarter for users all over the world.
dns  geek  grátis  internet  network 
may 2009 by rtopitt 360 Media Server
A upnp media server designed for streaming music to the Xbox 360. It is capable of transcoding many non supported formats including AAC,Ogg and Flac as well as the formats the 360 already supports (MP3 and WMA). Also capable of reading iTunes XML.
360  linux  música  software_livre  streaming  upnp  xbox  network  server 
may 2009 by rtopitt
iplist is a list based packet handler which uses the netfilter netlink-queue library (kernel 2.6.14 or later). It filters by IP-address and is optimized for thousands of IP-address ranges. to protect your privacy while sharing with others
banimento  bittorrent  geek  hack  ip  linux  lista  p2p  privacidade  network  security 
may 2009 by rtopitt :: What can you do with a second Ethernet port?
Purchase a new PC or motherboard soon, and the chances are good that it will come with two built-in network interfaces but what exactly are you supposed to do with it? If you are running Linux, you have several alternatives.
artigo  ethernet  geek  how-to  interface  linux  network  tip 
may 2009 by rtopitt
The ABCs of securing your wireless network: Page 1
In this practical introduction to the basics of securing your home wireless network, we'll cover the important, high-level points that ordinary users need to know in order to secure a network of game consoles, phones, and PCs.
artigo  hardware  wi-fi  wireless  network  security  configuration  tip 
may 2009 by rtopitt
OpenVPN, parte 1: Criando uma VPN básica
Tutorial de criação de VPNs entre redes separadas via Internet usando OpenVPN
how-to  internet  linux  openvpn  vpn  network  security 
may 2009 by rtopitt
Royal Pingdom » When data center cabling becomes art
We have posted pics of some truly messy data center cabling in the past, but this time we figured it was time to do the opposite: Show how some people have managed to organize cables into something close to art.
arte  cabo  data_center  geek  network  server  photo 
may 2009 by rtopitt
SlimServer: Our powerful and free Open Source software. Runs on Windows, Mac, Linux, BSD and Solaris.
Slim Devices introduces SlimServer 6.5.4, our powerful and free Open Source software. Not only will it power any Squeezebox or Transporter, but also any software MP3 player on your network. SlimServer 6.5.4 runs on Windows, Mac, Linux, BSD and Solaris.
biblioteca  música  mp3  perl  software_livre  stream  network  server 
may 2009 by rtopitt
Subsonic - Free Media Streamer
Subsonic is a free, web-based media streamer, providing access to your entire music collection wherever you are. Use it to share your music with friends, or to listen to your own music while at work. You can stream to multiple players simultaneously, for
biblioteca  java  música  mp3  software_livre  stream  tomcat  war  webapp  network  server 
may 2009 by rtopitt
how to crack your wifi passphrase (wpa) - video - Sclipo
this video shows you how to crack a wpa wifi passphrase with an Ubuntu (linux).
crack  hack  how-to  ubuntu  wireless  wpa  network  security  video 
may 2009 by rtopitt - nm_unset
Script para remover redes wireless da lista de redes do network-manager
gnome  network_manager  python  script  ssid  ubuntu  wireless  network 
may 2009 by rtopitt
OpenVPN Pantaneiro -
Tutorial de instalação, configuração e uso de OpenVPN no Ubuntu
criptografia  how-to  openvpn  ubuntu  vpn  network  security 
may 2009 by rtopitt
Likewise Open-Sources Active Directory Authentication for Linux
Likewise Software, formerly Centeris, a leader in mixing and matching Windows and Linux network solutions, has announced the first open-source version of release of version 4.0 of its cross-platform authentication software: Likewise Open.
active_directory  integração  ldap  linux  login  samba  sso  windows  network 
may 2009 by rtopitt
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