links - internet

The world-wide network of networks. Each network is made of computers connected by cables or by wireless links.

Computers communicate through the internet by sending information in packets, using a common language, or protocol, that they can all understand. One of the most common languages is TCP/IP.

The web and email are two of many services which get to us through the internet.

on this page: Basics Online tools big picture dns dns servers dns services http icann mrtg netcat ports and protocols squid tcp/ip

Basics

How the Internet Works http://www.exn.ca/nerds/internet.cfm "... like a sleek sports car, there's a lot of complex engineering behind the World Wide Web. This page will help give you a bit of an understanding of what's going on when you type in a web address." EXN : 2007

Online tools

CanYouSeeMe http://canyouseeme.org/ Open port check tool. "A free utility for remotely verifying a port is open or closed. It will be useful for users who wish to check to see if a server is running or a firewall or ISP is blocking certain ports." No-IP.com : 2007
CheckIP http://www.checkip.org/ "Find your current IP address and additional information including maps and location info." No-IP.com : 2007
DnsStuff http://www.dnsstuff.com whois, dig, many other useful tools all on one easy-to-get page. DNSStuff : 2007
Mail Lookup http://www.zoneedit.com/smtp.html check if an email address is valid. ZoneEdit : 2007
Online nslookup http://www.zoneedit.com/lookup.html forward and reverse dns lookup ZoneEdit : 2006
Speedtest – ATT.net http://testspeed.home.att.net Tests speed of your http(?) connection. ATT.net : 2006
Speedtest – BandwidthPlace.com http://www.bandwidthplace.com Tests speed of your http(?) connection. BandwidthPlace.com : 2006
Speedtest – Mybc.com http://speedtest.mybc.com Tests speed of your http connection. Mybc.com : 2006
Speedtest – Roundsparrow.com http://www.roundsparrow.com Tests speed of your ftp(?) connection. roundsparrow.com : 2006

big picture

For want of a file, the net was lost http://news.bbc.co.uk/2/hi/technology/6263501.stm Will the net be robust enough to cope with all the calls we will make on it in the future. Bill Thompson : January 2007

dns

DDNS software: http://google.co.in?q=ddns+software GNUdip, GNUdip2, DHIS google search : right now
dns and dynamic dns http://www.technopagan.org/dynamic/ info about dns and dynamic dns technopagan.org :
DNS Resources Directory http://www.dns.net/dnsrd/ Overview and RFC documents for DNS; links to other resources. András Salamon : 2006
Dynamic DNS - Explanation http://www.zoneedit.com/doc/dynamic.html How it works, how to get it. ZoneEdit : 2006
How DNS works http://www.zoneedit.com/doc/dns-basics.html Nice graphic and explanation. ZoneEdit : 2006
Web Browser DNS flowchart http://www.zoneedit.com/doc/dns-basics.html Explanation of how the browser gets a name for an address zoneedit :

dns servers

No-IP http://www.no-ip.com dns for your ip as subdomain.no-ip.com. Dynamic dns, domain registration, and other dns services No-IP : 2007
ZoneEdit http://www.zoneedit.com provides dns for your domain OpenDNS : 2007

dns services

OpenDNS http://www.opendns.com Provides alternate servers for your dns requests. Fast, with extra services such as typo correction, anti-phishing. OpenDNS : 2007

http

Analysis of HTTP Performance problems http://www.w3.org/Protocols/HTTP/1.0/HTTPPerformance.html Interesting details of http1.0, we are now http 1.1, but a lot is still relevant. Simon E Spero : July 1994
HTTP View http://www.rexswain.com/httpview.html See html headers – "exactly what an HTTP request returns to your browser" Cool! Swain :
Run your own webserver from home on DSL or Cable http://www.dslwebserver.com/main/fr_index.html?/main/main.html A good explanation of how webservers, dns, etc work. :

icann

ICANN (Internet Corporation for Assigned Names and Numbers) http://www.icann.org "ICANN is responsible for the global coordination of the Internet's system of unique identifiers. These include domain names (like .org, .museum and country codes like .UK), as well as the addresses used in a variety of Internet protocols. Computers use these identifiers to reach each other over the Internet. Careful management of these resources is vital to the Internet's operation, so ICANN's global stakeholders meet regularly to develop policies that ensure the Internet's ongoing security and stability." ICANN : 2007
US government steps back from internet control http://www.theregister.co.uk/2006/10/02/icann_doc_jta/ "The US government has taken a step back from control of the internet with a new contract between it and overseeing organisation ICANN that came into effect yesterday." Kieren McCarthy : October 2006

mrtg

MRTG howto http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:_Ch23_:_Advanced_MRTG_for_Linux#Creating_A_New_MRTG_Index_Page_To_Include_This_File config files and stuff wiki : 2006

netcat

GNU netcat http://netcat.sourceforge.net/ A rewrite of the well-known networking tool, but more portable, with new features and fully GNU compliant. sourceforge.net : ?

ports and protocols

List of well-known ports http://en.wikipedia.org/wiki/List_of_well-known_ports_(computing) explanations with links to protocol and other info on wikipedia. Very nice. wikipedia : 2006

squid

Squid FAQ http://dmz.gov.tibet.net/yahel/squid-faq/ tibet.net : ?

tcp/ip

TCP/IP Network Administration http://www.unix.org.ua/orelly/networking/tcpip/ the book at O'Reilly :
Learn TCP/IP http://www.w3schools.com/tcpip/default.asp "what TCP/IP is, and how it works." w3schools.org : 2006