作者:liuwanbing1985
1、查看连接状态 netstat -nat | awk '/^tcp/{++S[$NF]}END{for (a in S) print a,S[a]}' 2、防御措施 vi /etc/sysctl.conf 添加 net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_synack_retries = 2 net.ipv4.tcp_syn_retries = 2 sysctl -p