有大量 TIME_WAIT時該怎麼辦

# vi /etc/sysctl

net.ipv4.tcp_syncookies = 1 # 可防止syn攻擊，預設為1
net.ipv4.tcp_tw_reuse = 1   # 允許將time-wait sockets重新用於新的tcp連線上，預設為0
net.ipv4.tcp_tw_recycle = 1    # 允許快速回收，預設為0
net.ipv4.tcp_fin_timeout = 30  # timeout 時間，預設為60

sysctl -w net.ipv4.tcp_syncookies=1
sysctl -w net.ipv4.tcp_tw_reuse=1 
sysctl -w net.ipv4.tcp_tw_recycle=1 
sysctl -w net.ipv4.tcp_fin_timeout=30