ulimit -n 30000

sudo sysctl net.ipv4.tcp_max_tw_buckets=65536
sudo sysctl net.ipv4.tcp_tw_reuse=0
sudo sysctl net.ipv4.tcp_max_syn_backlog=131072
sudo sysctl net.ipv4.tcp_syn_retries=3
sudo sysctl net.ipv4.tcp_synack_retries=3
sudo sysctl net.ipv4.tcp_retries1=3
sudo sysctl net.ipv4.tcp_retries2=8
sudo sysctl net.ipv4.tcp_rmem=16384174760349520
sudo sysctl net.ipv4.tcp_wmem=16384131072262144
sudo sysctl net.ipv4.tcp_mem=2621445242881048576
sudo sysctl net.ipv4.tcp_max_orphans=65536
sudo sysctl net.ipv4.tcp_fin_timeout=10
sudo sysctl net.ipv4.tcp_low_latency=1
sudo sysctl net.ipv4.tcp_syncookies=0
sudo sysctl net.netfilter.nf_conntrack_max=1048576