Dias nummer 1

1
149.6.48.253 www.ungraad8.dk
(TLD) Top-level domain
(SLD) Second-level domain
Third-level domains
2
Browser
TLD
DNS ns1.gratisdns.dk
Server 149.6.48.253
3
The most common services and ports

• 21 ftp File Transfer Protocol
• 25 Smtp Simple Mail Transfer Protocol
• 80 http Hypertext Transfer Protocol
• pop-3 Post Office Protocol (version 3)
• 3306 MySQL MySQL Database
• 6000 x11 x11 Remote Desktop
• 6667 IRC Internet Relay Chat

4
HTML ?
Hyper Text Mark-up Language
5
logo.png
bg2.png
6
Attributes
Attribute
Value
Content
ltdiv width100pxgtSomethinglt/divgt
Start tag
End tag
7
lt!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN "http//www.w3.org/TR/html4/loo
se.dtd"gt lthtmlgt ltheadgt lttitlegtUngRaringd8
bullbullbulllt/titlegt lt/headgt ltbody
background"bg2.png"gt ltcentergt lttablegt lttrgtlttd
colspan"2"gt ltimg src"logo.png"
alt"UngRaringd8 - til for dig!"
width"300"gt lt/tdgtlt/trgtlttr id"menu"gtlttdgt Menu
goes here lt/tdgtlttdgt lta href"http//something.net
"gtRest of the page goes herelt/agt lt/tdgt lt/trgt lt/ta
blegt lt/centergt lt/bodygt lt/htmlgt
8
lt!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN "http//www.w3.org/TR/html4/loo
se.dtd"gt lthtmlgt ltheadgt lttitlegtUngRaringd8
bullbullbulllt/titlegt lt/headgt ltbody
background"bg2.png"gt ltcentergt lttablegt lttrgtlttd
colspan"2"gt ltimg src"logo.png"
alt"UngRaringd8 - til for dig!"
width"300"gt lt/tdgtlt/trgtlttr id"menu"gtlttdgt Menu
goes here lt/tdgtlttdgt lta href"http//something.net
"gtRest of the page goes herelt/agt lt/tdgt lt/trgt lt/ta
blegt lt/centergt lt/bodygt lt/htmlgt
9
lt!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN "http//www.w3.org/TR/html4/loo
se.dtd"gt lthtmlgt ltheadgt lttitlegtUngRaringd8
bullbullbulllt/titlegt lt/headgt ltbody
background"bg2.png"gt ltcentergt lttablegt lttrgtlttd
colspan"2"gt ltimg src"logo.png"
alt"UngRaringd8 - til for dig!"
width"300"gt lt/tdgtlt/trgtlttr id"menu"gtlttdgt Menu
goes here lt/tdgtlttdgt lta href"http//something.net
"gtRest of the page goes herelt/agt lt/tdgt lt/trgt lt/ta
blegt lt/centergt lt/bodygt lt/htmlgt
10
lt!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN "http//www.w3.org/TR/html4/loo
se.dtd"gt lthtmlgt ltheadgt lttitlegtUngRaringd8
bullbullbulllt/titlegt lt/headgt ltbody
background"bg2.png"gt ltcentergt lttablegt lttrgtlttd
colspan"2"gt ltimg src"logo.png"
alt"UngRaringd8 - til for dig!"
width"300"gt lt/tdgtlt/trgtlttr id"menu"gtlttdgt Menu
goes here lt/tdgtlttdgt lta href"http//something.net
"gtRest of the page goes herelt/agt lt/tdgt lt/trgt lt/ta
blegt lt/centergt lt/bodygt lt/htmlgt
11
lt!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN "http//www.w3.org/TR/html4/loo
se.dtd"gt lthtmlgt ltheadgt lttitlegtUngRaringd8
bullbullbulllt/titlegt lt/headgt ltbody
background"bg2.png"gt ltcentergt lttablegt lttrgtlttd
colspan"2"gt ltimg src"logo.png"
alt"UngRaringd8 - til for dig!"
width"300"gt lt/tdgtlt/trgtlttr id"menu"gtlttdgt Menu
goes here lt/tdgtlttdgt lta href"http//something.net
"gtRest of the page goes herelt/agt lt/tdgt lt/trgt lt/ta
blegt lt/centergt lt/bodygt lt/htmlgt
12
lt!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN "http//www.w3.org/TR/html4/loo
se.dtd"gt lthtmlgt ltheadgt lttitlegtUngRaringd8
bullbullbulllt/titlegt lt/headgt ltbody
background"bg2.png"gt ltcentergt lttablegt lttrgtlttd
colspan"2"gt ltimg src"logo.png"
alt"UngRaringd8 - til for dig!"
width"300"gt lt/tdgtlt/trgtlttr id"menu"gtlttdgt Menu
goes here lt/tdgtlttdgt lta href"http//something.net
"gtRest of the page goes herelt/agt lt/tdgt lt/trgt lt/ta
blegt lt/centergt lt/bodygt lt/htmlgt
13
lt!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN "http//www.w3.org/TR/html4/loo
se.dtd"gt lthtmlgt ltheadgt lttitlegtUngRaringd8
bullbullbulllt/titlegt lt/headgt ltbody
background"bg2.png"gt ltcentergt lttablegt lttrgtlttd
colspan"2"gt ltimg src"logo.png"
alt"UngRaringd8 - til for dig!"
width"300"gt lt/tdgtlt/trgtlttr id"menu"gtlttdgt Menu
goes here lt/tdgtlttdgt lta href"http//something.net
"gtRest of the page goes herelt/agt lt/tdgt lt/trgt lt/ta
blegt lt/centergt lt/bodygt lt/htmlgt
14
lt!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN "http//www.w3.org/TR/html4/loo
se.dtd"gt lthtmlgt ltheadgt lttitlegtUngRaringd8
bullbullbulllt/titlegt lt/headgt ltbody
background"bg2.png"gt ltcentergt lttablegt lttrgtlttd
colspan"2"gt ltimg src"logo.png"
alt"UngRaringd8 - til for dig!"
width"300"gt lt/tdgtlt/trgtlttr id"menu"gtlttdgt Menu
goes here lt/tdgtlttdgt lta href"http//something.net
"gtRest of the page goes herelt/agt lt/tdgt lt/trgt lt/ta
blegt lt/centergt lt/bodygt lt/htmlgt
15
lt!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN "http//www.w3.org/TR/html4/loo
se.dtd"gt lthtmlgt ltheadgt lttitlegtUngRaringd8
bullbullbulllt/titlegt lt/headgt ltbody
background"bg2.png"gt ltcentergt lttablegt lttrgtlttd
colspan"2"gt ltimg src"logo.png"
alt"UngRaringd8 - til for dig!"
width"300"gt lt/tdgtlt/trgtlttr id"menu"gtlttdgt Menu
goes here lt/tdgtlttdgt lta href"http//something.net
"gtRest of the page goes herelt/agt lt/tdgt lt/trgt lt/ta
blegt lt/centergt lt/bodygt lt/htmlgt
16
lt!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN "http//www.w3.org/TR/html4/loo
se.dtd"gt lthtmlgt ltheadgt lttitlegtUngRaringd8
bullbullbulllt/titlegt lt/headgt ltbody
background"bg2.png"gt ltcentergt lttablegt lttrgtlttd
colspan"2"gt ltimg src"logo.png"
alt"UngRaringd8 - til for dig!"
width"300"gt lt/tdgtlt/trgtlttr id"menu"gtlttdgt Menu
goes here lt/tdgtlttdgt lta href"http//something.net
"gtRest of the page goes herelt/agt lt/tdgt lt/trgt lt/ta
blegt lt/centergt lt/bodygt lt/htmlgt
17
lt!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN "http//www.w3.org/TR/html4/loo
se.dtd"gt lthtmlgt ltheadgt lttitlegtUngRaringd8
bullbullbulllt/titlegt lt/headgt ltbody
background"bg2.png"gt ltcentergt lttablegt lttrgtlttd
colspan"2"gt ltimg src"logo.png"
alt"UngRaringd8 - til for dig!"
width"300"gt lt/tdgtlt/trgtlttr id"menu"gtlttdgt Menu
goes here lt/tdgtlttdgt lta href"http//something.net
"gtRest of the page goes herelt/agt lt/tdgt lt/trgt lt/ta
blegt lt/centergt lt/bodygt lt/htmlgt
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lt!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN "http//www.w3.org/TR/html4/loo
se.dtd"gt lthtmlgt ltheadgt lttitlegtUngRaringd8
bullbullbulllt/titlegt lt/headgt ltbody
background"bg2.png"gt ltcentergt lttablegt lttrgtlttd
colspan"2"gt ltimg src"logo.png"
alt"UngRaringd8 - til for dig!"
width"300"gt lt/tdgtlt/trgtlttr id"menu"gtlttdgt Menu
goes here lt/tdgtlttdgt lta href"http//something.net
"gtRest of the page goes herelt/agt lt/tdgt lt/trgt lt/ta
blegt lt/centergt lt/bodygt lt/htmlgt
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Extentions
PHP PHP Hypertext Preprocessor ASP Active
Server Pages