File: //etc/sysctl.conf
kernel.panic = 30
kernel.panic = 30
kernel.sysrq=1
vm.panic_on_oom = 1
net.core.rmem_default = 8388608
net.core.wmem_default = 8388608
net.core.netdev_max_backlog = 30000
net.core.somaxconn = 30000
net.ipv4.tcp_max_syn_backlog = 30000
net.core.rmem_max = 8388608
net.core.wmem_max = 8388608
net.ipv4.tcp_rmem = 4096 87380 8388608
net.ipv4.tcp_wmem = 4096 65536 8388608
net.ipv4.tcp_fin_timeout = 20
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_slow_start_after_idle = 0
net.ipv4.tcp_keepalive_time = 60
net.ipv4.tcp_max_tw_buckets = 2000000