links - internet-technologies

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

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 services

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