22. .
.
CiscoPacketTracer , : HTTP, DHCP, TFTP, DNS, NTP, EMAIL, FTP . .
:
:
1 - Server1 DNS Web ;
2 - Server2 DHCP ;
3 - 1 TCP/IPcDHCP www.rambler.ru Server1.
1.
TCP/IP 1 .
1 IP DHCP
IP:
Server1: IP 10.0.0.1, 255.0.0.0
Server2: IP 10.0.0.2, 255.0.0.0
2. DNS Server1.
Server1 DNS DNS:
1 IP .3 :
2 CNAME
Server1 HTTP WWW.RAMBLER.RU
Server1 DNS- 10.0.0.1
Server1 DNS. DNS
SERVER> nslookupwww.rambler.ru
3. DHCP Server2.
Server2 DHCP .
.
WWW.RAMBLER.RU
DNS.
DNS . : AAAA, CNAME, NS, PTR, SOA, TXT .
DHCP.
DHCP (. Dynamic Host Configuration Protocol ) , IP- , TCP/IP.
:
(Multicast) DHCP- ( Discover).
, , IP- ( Offer).
, , ( Request).
, IP- ( ACK)
3. DHCP?
DNS DNS. IP . CNAME .
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