bbr.sh

apt install sudo -y
sudo apt update
sudo apt install gnupg
echo 'deb http://deb.xanmod.org releases main' | sudo tee /etc/apt/sources.list.d/xanmod-kernel.list
wget -qO - https://dl.xanmod.org/gpg.key | sudo apt-key --keyring /etc/apt/trusted.gpg.d/xanmod-kernel.gpg add -
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 86F7D09EE734E623
sudo apt update

awk -f <(wget -O - https://dl.xanmod.org/check_x86-64_psabi.sh)
apt install linux-xanmod-rt-x64v3


netsh interface tcp set global timestamps=enabled
#bbr
cat > /etc/sysctl.conf <<EOF
fs.file-max = 1000000

net.ipv4.tcp_window_scaling=1
net.ipv4.tcp_timestamps=1
net.ipv4.tcp_sack=1
net.ipv4.tcp_syn_retries=1

net.ipv4.tcp_fastopen = 3
net.core.default_qdisc = fq_pie
net.ipv4.tcp_congestion_control = bbr
EOF
sysctl -p && sysctl --system

sed -i '/net.ipv4.conf.all.route_localnet/d' /etc/sysctl.conf
sed -i '/net.ipv4.ip_forward/d' /etc/sysctl.conf
sed -i '/net.ipv4.conf.all.forwarding/d' /etc/sysctl.conf
sed -i '/net.ipv4.conf.default.forwarding/d' /etc/sysctl.conf
cat >> '/etc/sysctl.conf' << EOF
net.ipv4.conf.all.route_localnet=1
net.ipv4.ip_forward=1
net.ipv4.conf.all.forwarding=1
net.ipv4.conf.default.forwarding=1
EOF
sysctl -p && sysctl --system

echo "1000000" > /proc/sys/fs/file-max
sed -i '/fs.file-max/d' /etc/sysctl.conf
cat >> '/etc/sysctl.conf' << EOF
fs.file-max=1000000
EOF

ulimit -SHn 1000000 && ulimit -c unlimited
echo "root     soft   nofile    1000000
root     hard   nofile    1000000
root     soft   nproc     1000000
root     hard   nproc     1000000
root     soft   core      1000000
root     hard   core      1000000
root     hard   memlock   unlimited
root     soft   memlock   unlimited

*     soft   nofile    1000000
*     hard   nofile    1000000
*     soft   nproc     1000000
*     hard   nproc     1000000
*     soft   core      1000000
*     hard   core      1000000
*     hard   memlock   unlimited
*     soft   memlock   unlimited
">/etc/security/limits.conf
if grep -q "ulimit" /etc/profile; then
  :
else
  sed -i '/ulimit -SHn/d' /etc/profile
  echo "ulimit -SHn 1000000" >>/etc/profile
fi
if grep -q "pam_limits.so" /etc/pam.d/common-session; then
  :
else
  sed -i '/required pam_limits.so/d' /etc/pam.d/common-session
  echo "session required pam_limits.so" >>/etc/pam.d/common-session
fi

sed -i '/DefaultTimeoutStartSec/d' /etc/systemd/system.conf
sed -i '/DefaultTimeoutStopSec/d' /etc/systemd/system.conf
sed -i '/DefaultRestartSec/d' /etc/systemd/system.conf
sed -i '/DefaultLimitCORE/d' /etc/systemd/system.conf
sed -i '/DefaultLimitNOFILE/d' /etc/systemd/system.conf
sed -i '/DefaultLimitNPROC/d' /etc/systemd/system.conf

cat >>'/etc/systemd/system.conf' <<EOF
[Manager]
#DefaultTimeoutStartSec=90s
DefaultTimeoutStopSec=30s
#DefaultRestartSec=100ms
DefaultLimitCORE=infinity
DefaultLimitNOFILE=65535
DefaultLimitNPROC=65535
EOF

systemctl daemon-reload