laborator 7 - catalina.mancasfeaa.catalinamancas.ro/feaa/lab7.pdfdns •domain name service...
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Laborator 7 Suport
DNS, DNS SERVER, NAME SERVER, DOMENIU, WEB SERVER
FEAA RC – Laborator catalina.mancas@dcti.ucv.ro
TERMENI
• DNS
• DNS Server
• Name Server
• Domeniu
• Web Server
FEAA RC - Laborator 2
OM vs. CALCULATOR
FEAA RC - Laborator 3
OM vs. CALCULATOR
FEAA RC - Laborator 4
OM vs. CALCULATOR
FEAA RC - Laborator 5
OM
FEAA RC - Laborator 6
OM
FEAA RC - Laborator 7
CALCULATOR
FEAA RC - Laborator 8
OM
FEAA RC - Laborator 9
Domeniu
www.google.com
FEAA RC - Laborator 10
www google com
TLD - Top Level Domain
(domeniu de nivel înalt)
www.google.com
FEAA RC - Laborator 11
www google com
Domain (domeniu)
www.google.com
FEAA RC - Laborator 12
www google com
Hostname (Numele hostului)
Domenii .ro
• ICI – Institutul Național de Cercetare-Dezvoltare în Informatică
• www.ici.ro
FEAA RC - Laborator 13
DNS
• Domain Name Service
• Serviciul care face legătura între domenii și
adrese IP
FEAA RC - Laborator 14
DNS
• Domain Name Service
FEAA RC - Laborator 15
Hostname IP address
www.google.com 173.194.39.99
www.yahoo.com 206.190.36.45
www.ucv.ro 193.231.40.245
www.feaa.ucv.ro 193.231.40.136
..... .....
DNS Server www.ucv.ro
FEAA RC - Laborator 16
DNS Server www.ucv.ro
FEAA RC - Laborator 17
DNS Server www.ucv.ro
FEAA RC - Laborator 18
DNS Server www.ucv.ro
FEAA RC - Laborator 19
DNS Server = Name Server (ns)
FEAA RC - Laborator 20
DNS
• Domain Name Service
• Serviciul care face legătura între domenii și
adrese IP
• Configurat pe un Server
• Server DNS Name Server • Fiecare rețea de calculatoare trebuie să aibă un
server DNS pentru a putea accesa site-uri Web,
trimite e-mailuri etc.
FEAA RC - Laborator 21
SERVER
• Un calculator (un spațiu de depozitare)
• Oferă servicii celorlaltor calculatoare din rețea
FEAA RC - Laborator 22
SERVER
• Server DHCP o Serviciul care distribuie automat adrese IP
• Server DNS o Serviciul care face legătura între domenii și adrese IP
• Server Web o Serviciul care stochează pagini Web
• Server Mail o Serviciul care se ocupă cu livrarea e-mailurilor
FEAA RC - Laborator 23
Server DNS
FEAA RC - Laborator 24
www.ucv.ro ?
IP: 193.226.37.18
Server DNS
FEAA RC - Laborator 25
? IP: 193.226.37.18
Server DNS
FEAA RC - Laborator 26
IP: 193.226.37.18 DNS: 193.226.37.1
IP: 193.226.37.1
www.ucv.ro ?
Server DNS
FEAA RC - Laborator 27
193.231.40.245
IP: 193.226.37.18 DNS: 193.226.37.1
IP: 193.226.37.1
Server DNS
FEAA RC - Laborator 28
IP: 193.226.37.18 DNS: 193.226.37.1
193.231.40.245
IP: 193.226.37.1
IP: 193.231.40.245
Server DNS
FEAA RC - Laborator 29
IP: 193.226.37.18 DNS: 193.226.37.1
www.ucv.ro
IP: 193.226.37.1
IP: 193.231.40.245
www.ucv.ro
FEAA RC - Laborator 30
www.feaa.ucv.ro
FEAA RC - Laborator 31
IP: 193.226.37.18 DNS: 193.226.37.1
IP: 193.226.37.1
IP: 193.231.40.136
www.feaa.ucv.ro
FEAA RC - Laborator 32
IP: 193.226.37.18 DNS: 193.226.37.1
IP: 193.226.37.1
IP: 193.231.40.136
www.feaa.ucv.ro
FEAA RC - Laborator 33
IP: 193.226.37.18 DNS: 193.226.37.1
IP: 193.226.37.1
IP: 193.231.40.136
www.feaa.ucv.ro
FEAA RC - Laborator 34
IP: 193.226.37.18 DNS: 193.226.37.1
IP: 193.226.37.1
IP: 193.231.40.136
www.feaa.ucv.ro
FEAA RC - Laborator 35
IP: 193.226.37.18 DNS: 193.226.37.1
IP: 193.226.37.1
IP: 193.231.40.136
www.feaa.ucv.ro
FEAA RC - Laborator 36
IP: 193.226.37.18 DNS: 193.226.37.1
IP: 193.226.37.1
IP: 193.231.40.136 feaa.ucv.ro
www.google.com
FEAA RC - Laborator 37
www.google.com?
www.google.com
FEAA RC - Laborator 38
www.google.com?
www.google.com x
www.google.com
FEAA RC - Laborator 39
www.google.com
FEAA RC - Laborator 40
www.google.com x
www.google.com?
www.google.com
FEAA RC - Laborator 41
www.google.com
FEAA RC - Laborator 42
www.google.com x
www.google.com?
www.google.com
FEAA RC - Laborator 43
www.google.com
FEAA RC - Laborator 44
www.google.com
FEAA RC - Laborator 45
www.google.com
173.194.39.99
www.google.com?
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