防止Linux出現大量FIN_WAIT1

當鏈接數多時，常常出現大量FIN_WAIT1，能夠修改/etc/sysctl.conf
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net.ipv4.tcp_fin_timeout = 10
net.ipv4.tcp_keepalive_time = 30
net.ipv4.tcp_window_scaling = 0
net.ipv4.tcp_sack = 0
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運行/sbin/sysctl -p命令使其生效。