cat /proc/sys/net/ipv4/tcp_max_syn_backlog
echo 20480 > /proc/sys/net/ipv4/tcp_max_syn_backlog
net.ipv4.tcp_max_syn_backlog = 20480
cat /proc/sys/net/ipv4/tcp_max_syn_backlog
echo 20480 > /proc/sys/net/ipv4/tcp_max_syn_backlog
net.ipv4.tcp_max_syn_backlog = 20480