Selasa, 09 Desember 2008

Keamanan Jaringan bag.6

KEAMANAN JARINGAN BAG.6
Hacking___Defending_Web

WEB SERVERS IN GENERAL HTTP, THE FOUNDATION
Stateless
• Meaning the protocol allows for a quick setup, data passage, and tear down
• There is no method to track previous session
HTTP request Line
• Dikirim dari klient ke server

• Example : GET/index.html HTTP/1.1
HTTP response Line
• Dikirim dari server ke klient

• Example : HTTP/1.1 200 Ok
Web Srvers in General Uniform Resource Locatorv (URL)
• Tipe-tipe URL : http:// , https:// , javascript:// ,mailto://
Struktur URL (http://server:port/path?search) :
• Server : nama DNS atau IP
• Port : port pada server untuk koneksi
• Path : path pada server
• ? : separator,start of searching string
• Search : daftar parameter yang dilewatkan pada server
• Unicode encoding : used to allow for international chars
• URL encoding : used to protect certain characters as above

Apache Web Server Functionality :
• Modular design : 43 total modules
• Virtual Host
Multiple virtual host on one physical host done with namevirtualhost and virtualHost directives

Server Side Include (SSI)
• Code embedded in webpages,executed on server
• Our 200 pound digital clock reads

Dynamic Content with Common Gateway Interface (CGI)
Dangerous ability to run executables on server to collect and present dynamic content back to requesting client
Handlers
Used to map file extension to programs, done in httpd.

Smoga bermanfaat,,,,dan yang penting gak salah translet,,he,,he,he

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