some (hopefully useful) tcp kernel parameters

00-optimize.conf

fs.file-max = 51200
net.core.default_qdisc=fq
net.core.netdev_max_backlog = 4096
net.core.rmem_default = 256960
net.core.rmem_max = 256960
net.core.somaxconn = 4096
net.core.wmem_default = 256960
net.core.wmem_max = 256960
net.ipv4.tcp_base_mss = 1024
net.ipv4.tcp_congestion_control=bbr
net.ipv4.tcp_fastopen=3
net.ipv4.tcp_fin_timeout = 15
net.ipv4.tcp_keepalive_intvl = 30
net.ipv4.tcp_keepalive_probes = 5
net.ipv4.tcp_keepalive_time = 1200
net.ipv4.tcp_max_syn_backlog = 4096
net.ipv4.tcp_mtu_probing = 1
net.ipv4.tcp_sack = 0
net.ipv4.tcp_syn_retries = 6
net.ipv4.tcp_synack_retries = 3
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_timestamps = 0
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_window_scaling = 1
net.netfilter.nf_conntrack_tcp_timeout_fin_wait=30
net.netfilter.nf_conntrack_tcp_timeout_time_wait=30