.
1) TCP, TCP
2) . (UDP, ICUP, IGMP, ARP)
3) IP. IP . .
4) .
DDOS
DOS
Denial of Service ( )
Distributed Denial of Service , .
DDOS- 4 :
1. , .
2.
3. , .
4. - , , , 4
a. SYN- . SYN- TCP. TCP , . .
b. UDP- . UDP- TCP-. , UDP-, .
. ICMP- ICMP-. Ping of death . ping , + 20 , 65535 . , . , , 7 , 65535 . . , 65535 , .
d. HTTP- , web-. GET- .
RU |
AC |
2 |
1 |
MSTA |
STAFF |
LAB |
DNS , IP . , . DNS . DNS :
|
|
1. , . .
2. . IP- DNS . DNS . , AM. ICANN. UDP-. , TCP .
3. , IP- IP-. nslookup, . , IP-. DNS ( ), DNS IP- , . www.in-aad2.arpa
4. ( ). DNS , . , , . . . . , .