Linux VPN server
sysctl net.ipv4.ip_forward=1
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
//iptables -t nat -A POSTROUTING -s 192.168.0.0/16 -j MASQUERADE
//iptables -t nat -A POSTROUTING -s 10.0.0.0/8 -j MASQUERADE
iptables -t mangle -A POSTROUTING -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
/etc/sysctl.conf
net.ipv4.ip_forward=1
net.ipv4.tcp_congestion_control=bbr
net.core.default_qdisc=fq
Run sysctl -p
to take effect.