2.  Uniform Resource Identifier (URI)  Uniform Resource Locator (URL)  Uniform Resource Name (URN) http://danielmiessler.com/study/url_vs_uri/ URL includes the Name of the resource AND how to access it All URLs are URIs but not vice versa

3.  www.bbc.co.uk is NOT a URL ◦ No resource name ◦ No access mechanism  http://www.midfest.org.uk/livestage.html http://www.midfest.org.uk/livestage.html  The above example IS a URL because it includes: ◦ Resource name livestage.html ◦ Access method http://www.midfest.org.uk  http://tools.ietf.org/html/rfc3986 is the URL for RFC3986 which explains URIs in great detail! http://tools.ietf.org/html/rfc3986

4.  TLD = Top Level Domain e.g. ◦.com ◦.net ◦.uk ◦.fr  IANA (Internet Assigned Numbers Authority) runs the ◦ TLD database ◦ DNS Root Zone  IANA delegates domain registration Country-code TLDs (ccTLDs) e.g..uk,.fr,.ca,.de, it Generic TLDs (gTLDs) e.g..com,.edu,.net

5.  All devices (hosts) on the Internet have an IP address  e.g. the IP address for the BBC website is 212.58.246.93

6.  Humans can’t remember numbers well  Domain Name System allows us to use alpha-numeric domain names  Part of basic PC configuration is to specify IP address of 1 or more DNS servers  Normally provided by your ISP but you can use others e.g. ◦ OpenDNS (208.67.222.222 and 208.67.220.220) ◦ Google (8.8.8.8 and 8.8.4.4)

7. If a domain name is not held in the local cache, the query will be passed along to the next level potentially right up to the Root Servers This happens for every internet resource you try to access.

8. http://www.iana.org/domains/root/servers Each of these named authorities is actually a network of many servers

9.  Private, public purpose company ◦ Has members rather than shareholders ◦ £400 joining fee plus £100 p.a. Subscription  Run the.uk TLD since 1996  Will run.wales and.cymru from 2015  Other.brands e.g..bbc from 20??  Other services include Dispute Resolution and WHOIS  Nominet delegates most domain registrations http://www.nominet.org.uk/whoweare/whatwedo

10. Domain registration /hosting Website hosting

11. Domain AND web hosting

12. Web hosting ONLY

13.  Virtually any hosting package (even domain only) will include email forwarding to avoid this situation…  Company has a domain name http://www.24hrbreakdownandrecoveryservices.co.uk/  BUT gives immek1@hotmail.com as the email address

14.  Choose a Linux Hosting account if you're going to use PHP, Ruby, Perl, Python, or CGI scripting. Our Linux accounts use a MySQL database.  Choose a Windows Hosting account if you're going to use ASP, ASP.NET, or ASP.NET 2.0. Our Windows hosting customers typically use a SQL Server (MS SQL) or Access database. Source: http://support.godaddy.com/help/article/2520/should-i- choose-a-windows-or-linux-hosting-account

17.  Depending on technologies used, you can carry out local testing  Websites go “live” when uploaded to a web server.  Often referred to as “publishing” the site  Websites are generally uploaded using FTP  Some web development tools include a built- in FTP client

18. Local files Remote folders Remote files Commands window Site Manager

19.  Generally website files & folders are uploaded to public_html (or similar)  Need a default file e.g. index.html  Use lower-case for file and folder names ◦ Easier then remembering when you used upper-case  Don’t use spaces in file names ◦ Otherwise they show up as %20 in the URL