Ingress Nginx network settings

The following network settings are for a machine which hosts nginx.

sysctl -e -w fs.file-max=6000000;  
sysctl -e -w fs.nr_open=10000000;  
sysctl -e -w net.core.rmem_max=16777216;  
sysctl -e -w net.core.wmem_max=16777216;  
sysctl -e -w net.core.rmem_default=12582912;  
sysctl -e -w net.core.wmem_default=12582912;  
sysctl -e -w net.core.optmem_max=25165824;  
sysctl -e -w net.core.netdev_max_backlog=262144;  
sysctl -e -w net.core.somaxconn=32768;  
sysctl -e -w net.core.rps_sock_flow_entries=32768;  
sysctl -e -w net.ipv4.ip_local_port_range="1025 65535";  
sysctl -e -w net.ipv4.tcp_rmem="8192 262144 16777216";  
sysctl -e -w net.ipv4.tcp_wmem="8192 262144 16777216";  
sysctl -e -w net.ipv4.udp_rmem_min=16384;  
sysctl -e -w net.ipv4.udp_wmem_min=16384;  
sysctl -e -w net.ipv4.ip_no_pmtu_disc=0;  
sysctl -e -w net.ipv4.route.flush=1;  
sysctl -e -w net.ipv4.tcp_dsack=1;  
sysctl -e -w net.ipv4.tcp_sack=1;  
sysctl -e -w net.ipv4.tcp_fack=1;  
sysctl -e -w net.ipv4.tcp_max_tw_buckets=1440000;  
sysctl -e -w net.ipv4.tcp_tw_recycle=0;  
sysctl -e -w net.ipv4.tcp_tw_reuse=1;  
sysctl -e -w net.ipv4.tcp_frto=0;  
sysctl -e -w net.ipv4.tcp_syncookies=1;  
sysctl -e -w net.ipv4.tcp_max_syn_backlog=32768;  
sysctl -e -w net.ipv4.tcp_synack_retries=2;  
sysctl -e -w net.ipv4.tcp_syn_retries=3;  
sysctl -e -w net.ipv4.tcp_fin_timeout=5;  
sysctl -e -w net.ipv4.tcp_retries2=5;  
sysctl -e -w net.ipv4.tcp_no_metrics_save=1;  
sysctl -e -w net.ipv4.tcp_moderate_rcvbuf=1;  
sysctl -e -w net.ipv4.tcp_timestamps=1;  
sysctl -e -w net.ipv4.tcp_keepalive_time=300;  
sysctl -e -w net.ipv4.tcp_keepalive_intvl=30;  
sysctl -e -w net.ipv4.tcp_keepalive_probes=6;  
sysctl -e -w net.ipv4.tcp_slow_start_after_idle=0;  
sysctl -e -w net.ipv4.tcp_window_scaling=1;  
sysctl -e -w net.ipv4.tcp_low_latency=1;  
sysctl -e -w net.ipv4.tcp_max_orphans=262144;  
sysctl -e -w net.nf_conntrack_max=9145728;  
sysctl -e -w net.netfilter.nf_conntrack_max=9145728;  
sysctl -e -w net.netfilter.nf_conntrack_tcp_timeout_time_wait=10;  
sysctl -e -w net.netfilter.nf_conntrack_tcp_timeout_fin_wait=10;  
sysctl -e -w net.netfilter.nf_conntrack_tcp_timeout_close_wait=30;  
sysctl -e -w net.netfilter.nf_conntrack_tcp_loose=1;  
sysctl -e -w net.ipv4.tcp_rfc1337=1;