realmeh

DDOS 攻击与防范

1. 常见攻击:

flood: ICMP/IGMP, udp,tcp, syn ,push+ack,ack, rst, ssl

7层: dns query, dns nxdomain query,dns 反射(edns超过512字节限制), ntp 反射(mon list), snmp反射,http cc;

慢速攻击:sockstress(receive window 0), thc ssl dos(ssl renegotiation), slowloris(http header 不发送\'\r\n\r\n\'), POST(Content-Length),  ReDos, HashDos

 

2. tools:

hping, pentbox, zarp, LOIC, HOIC,HULK, 

Slowloris, RUDY, thc-ssl-dos

 

 

3.dns ntp snmp 放大

 

4.org

110实验室, SEA,lulzsec, anonymous,jester, hidden lynx, icefog

vupen, ZDI

 

 

 

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