TCP/UDP Tweak

sysctl.conf

net.ipv4.ip_nonlocal_bind=1
net.ipv6.ip_nonlocal_bind=1
net.bridge.bridge-nf-call-iptables=1
net.bridge.bridge-nf-call-ip6tables=1
net.ipv4.neigh.default.gc_thresh1=128
net.ipv4.neigh.default.gc_thresh2=28672
net.ipv4.neigh.default.gc_thresh3=32768
net.ipv6.neigh.default.gc_thresh1=128
net.ipv6.neigh.default.gc_thresh2=28672
net.ipv6.neigh.default.gc_thresh3=32768
fs.inotify.max_user_watches = 524288
net.ipv4.ip_local_port_range = 1024 65535
net.core.rmem_max=26214400
net.core.rmem_default=26214400
net.core.default_qdisc=fq
net.ipv4.tcp_congestion_control=bbr

fs.file-max = 2097152
net.core.wmem_default = 31457280
net.core.wmem_max = 12582912
net.core.somaxconn = 65535
net.core.netdev_max_backlog = 65536
net.core.optmem_max = 25165824
net.ipv4.tcp_mem = 65536 131072 262144
net.ipv4.udp_mem = 65536 131072 262144
net.ipv4.tcp_rmem = 8192 87380 16777216
net.ipv4.udp_rmem_min = 16384
net.ipv4.tcp_wmem = 8192 65536 16777216
net.ipv4.udp_wmem_min = 16384
net.ipv4.tcp_mtu_probing=1

net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_no_metrics_save = 1
net.ipv4.route.flush = 1
net.core.dev_weight = 64
net.ipv4.ipfrag_low_thresh = 446464
net.ipv4.neigh.default.proxy_qlen = 96
net.ipv4.neigh.default.unres_qlen = 6
net.unix.max_dgram_qlen = 50
net.ipv4.tcp_moderate_rcvbuf = 1
net.ipv4.tcp_low_latency = 1

kernel.msgmnb = 131072
kernel.msgmax = 131072