echo 2 > /proc/sys/net/ipv4/synack_retries
echo 3 > /proc/sys/net/ipv4/tcp_fin_timeout
echo 8000 > /proc/sys/net/ipv4/tcp_max_syn_backlog
echo 2 > /proc/sys/net/ipv4/tcp_syn_retries
echo 2 > /proc/sys/net/ipv4/tcp_synack_retries
echo 1 > /proc/sys/net/ipv4/tcp_syncookies
echo 1 > /proc/sys/net/ipv4/tcp_tw_recycle
echo 1 > /proc/sys/net/ipv4/tcp_tw_reuse
echo 1 > /proc/sys/net/ipv4/tcp_window_scaling