optimise_server.sh

#!/bin/sh

if ! sysctl net.ipv4.tcp_available_congestion_control | grep -q 'bbr'; then
    echo "tcp_bbr" > /etc/modules-load.d/modules.conf 2>/dev/null
    clear
    echo
    echo "  Включен модуль bbr"
    echo "  Перезагрузите сервер и повторите команду «\\033[33m./optimise_server.sh\\033[0m»"
    echo
    
    exit 0
fi

echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf
echo "net.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf
echo "net.core.rmem_max = 67108864" >> /etc/sysctl.conf
echo "net.core.wmem_max = 67108864" >> /etc/sysctl.conf
echo "net.core.netdev_max_backlog = 10000" >> /etc/sysctl.conf
echo "net.core.somaxconn = 4096" >> /etc/sysctl.conf
echo "net.ipv4.tcp_syncookies = 1" >> /etc/sysctl.conf
echo "net.ipv4.tcp_tw_reuse = 1" >> /etc/sysctl.conf
echo "net.ipv4.tcp_fin_timeout = 30" >> /etc/sysctl.conf
echo "net.ipv4.tcp_keepalive_time = 1200" >> /etc/sysctl.conf
echo "net.ipv4.tcp_keepalive_probes = 5" >> /etc/sysctl.conf
echo "net.ipv4.tcp_keepalive_intvl = 30" >> /etc/sysctl.conf
echo "net.ipv4.tcp_max_syn_backlog = 8192" >> /etc/sysctl.conf
echo "net.ipv4.tcp_max_tw_buckets = 5000" >> /etc/sysctl.conf
echo "net.ipv4.tcp_fastopen = 3" >> /etc/sysctl.conf
echo "net.ipv4.tcp_mem = 25600 51200 102400" >> /etc/sysctl.conf
echo "net.ipv4.udp_mem = 25600 51200 102400" >> /etc/sysctl.conf
echo "net.ipv4.tcp_rmem = 4096 87380 67108864" >> /etc/sysctl.conf
echo "net.ipv4.tcp_wmem = 4096 65536 67108864" >> /etc/sysctl.conf
echo "net.ipv4.tcp_mtu_probing = 1" >> /etc/sysctl.conf
echo "net.ipv4.tcp_slow_start_after_idle=0" >> /etc/sysctl.conf


sysctl -p

clear
echo
echo "  Оптимизация сервера \\033[32mвыполнена\\033[0m"
echo "  Перезагрузите сервер командой «\\033[33mreboot\\033[0m»"
echo

rm -- "$0"