清理TIME_WAIT
cat >> /etc/sysctl.conf << EOF
net.ipv4.tcp_tw_reuse=1
net.ipv4.tcp_tw_recycle=1
net.ipv4.tcp_fin_timeout=30
EOF
sysctl -p
cat >> /etc/sysctl.conf << EOF
net.ipv4.tcp_tw_reuse=1
net.ipv4.tcp_tw_recycle=1
net.ipv4.tcp_fin_timeout=30
EOF
sysctl -p