diff --git a/ssr/google_bbr b/ssr/google_bbr
new file mode 100644
index 0000000..78b8429
--- /dev/null
+++ b/ssr/google_bbr
@@ -0,0 +1,372 @@
+#!/usr/bin/env bash
+#
+# Auto install latest kernel for TCP BBR
+#
+# System Required:  CentOS 6+, Debian8+, Ubuntu16+
+#
+# Copyright (C) 2016-2021 Teddysun <i@teddysun.com>
+#
+# URL: https://teddysun.com/489.html
+#
+
+cur_dir="$(cd -P -- "$(dirname -- "$0")" && pwd -P)"
+
+_red() {
+    printf '\033[1;31;31m%b\033[0m' "$1"
+}
+
+_green() {
+    printf '\033[1;31;32m%b\033[0m' "$1"
+}
+
+_yellow() {
+    printf '\033[1;31;33m%b\033[0m' "$1"
+}
+
+_info() {
+    _green "[Info] "
+    printf -- "%s" "$1"
+    printf "\n"
+}
+
+_warn() {
+    _yellow "[Warning] "
+    printf -- "%s" "$1"
+    printf "\n"
+}
+
+_error() {
+    _red "[Error] "
+    printf -- "%s" "$1"
+    printf "\n"
+    exit 1
+}
+
+_exists() {
+    local cmd="$1"
+    if eval type type > /dev/null 2>&1; then
+        eval type "$cmd" > /dev/null 2>&1
+    elif command > /dev/null 2>&1; then
+        command -v "$cmd" > /dev/null 2>&1
+    else
+        which "$cmd" > /dev/null 2>&1
+    fi
+    local rt=$?
+    return ${rt}
+}
+
+_os() {
+    local os=""
+    [ -f "/etc/debian_version" ] && source /etc/os-release && os="${ID}" && printf -- "%s" "${os}" && return
+    [ -f "/etc/redhat-release" ] && os="centos" && printf -- "%s" "${os}" && return
+}
+
+_os_full() {
+    [ -f /etc/redhat-release ] && awk '{print ($1,$3~/^[0-9]/?$3:$4)}' /etc/redhat-release && return
+    [ -f /etc/os-release ] && awk -F'[= "]' '/PRETTY_NAME/{print $3,$4,$5}' /etc/os-release && return
+    [ -f /etc/lsb-release ] && awk -F'[="]+' '/DESCRIPTION/{print $2}' /etc/lsb-release && return
+}
+
+_os_ver() {
+    local main_ver="$( echo $(_os_full) | grep -oE  "[0-9.]+")"
+    printf -- "%s" "${main_ver%%.*}"
+}
+
+_error_detect() {
+    local cmd="$1"
+    _info "${cmd}"
+    eval ${cmd}
+    if [ $? -ne 0 ]; then
+        _error "Execution command (${cmd}) failed, please check it and try again."
+    fi
+}
+
+_is_digit(){
+    local input=${1}
+    if [[ "$input" =~ ^[0-9]+$ ]]; then
+        return 0
+    else
+        return 1
+    fi
+}
+
+_is_64bit(){
+    if [ $(getconf WORD_BIT) = '32' ] && [ $(getconf LONG_BIT) = '64' ]; then
+        return 0
+    else
+        return 1
+    fi
+}
+
+_version_ge(){
+    test "$(echo "$@" | tr " " "\n" | sort -rV | head -n 1)" == "$1"
+}
+
+get_valid_valname(){
+    local val=${1}
+    local new_val=$(eval echo $val | sed 's/[-.]/_/g')
+    echo ${new_val}
+}
+
+get_hint(){
+    local val=${1}
+    local new_val=$(get_valid_valname $val)
+    eval echo "\$hint_${new_val}"
+}
+
+#Display Memu
+display_menu(){
+    local soft=${1}
+    local default=${2}
+    eval local arr=(\${${soft}_arr[@]})
+    local default_prompt
+    if [[ "$default" != "" ]]; then
+        if [[ "$default" == "last" ]]; then
+            default=${#arr[@]}
+        fi
+        default_prompt="(default ${arr[$default-1]})"
+    fi
+    local pick
+    local hint
+    local vname
+    local prompt="which ${soft} you'd select ${default_prompt}: "
+
+    while :
+    do
+        echo -e "\n------------ ${soft} setting ------------\n"
+        for ((i=1;i<=${#arr[@]};i++ )); do
+            vname="$(get_valid_valname ${arr[$i-1]})"
+            hint="$(get_hint $vname)"
+            [[ "$hint" == "" ]] && hint="${arr[$i-1]}"
+            echo -e "${green}${i}${plain}) $hint"
+        done
+        echo
+        read -p "${prompt}" pick
+        if [[ "$pick" == "" && "$default" != "" ]]; then
+            pick=${default}
+            break
+        fi
+
+        if ! _is_digit "$pick"; then
+            prompt="Input error, please input a number"
+            continue
+        fi
+
+        if [[ "$pick" -lt 1 || "$pick" -gt ${#arr[@]} ]]; then
+            prompt="Input error, please input a number between 1 and ${#arr[@]}: "
+            continue
+        fi
+
+        break
+    done
+
+    eval ${soft}=${arr[$pick-1]}
+    vname="$(get_valid_valname ${arr[$pick-1]})"
+    hint="$(get_hint $vname)"
+    [[ "$hint" == "" ]] && hint="${arr[$pick-1]}"
+    echo -e "\nyour selection: $hint\n"
+}
+
+get_latest_version() {
+    latest_version=($(wget -qO- https://kernel.ubuntu.com/~kernel-ppa/mainline/ | awk -F'\"v' '/v[4-9]./{print $2}' | cut -d/ -f1 | grep -v - | sort -V))
+    [ ${#latest_version[@]} -eq 0 ] && _error "Get latest kernel version failed."
+    kernel_arr=()
+    for i in ${latest_version[@]}; do
+        if _version_ge $i 5.15; then
+            kernel_arr+=($i);
+        fi
+    done
+    display_menu kernel last
+    if _is_64bit; then
+        deb_name=$(wget -qO- https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/ | grep "linux-image" | grep "generic" | awk -F'\">' '/amd64.deb/{print $2}' | cut -d'<' -f1 | head -1)
+        deb_kernel_url="https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/${deb_name}"
+        deb_kernel_name="linux-image-${kernel}-amd64.deb"
+        modules_deb_name=$(wget -qO- https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/ | grep "linux-modules" | grep "generic" | awk -F'\">' '/amd64.deb/{print $2}' | cut -d'<' -f1 | head -1)
+        deb_kernel_modules_url="https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/${modules_deb_name}"
+        deb_kernel_modules_name="linux-modules-${kernel}-amd64.deb"
+    else
+        deb_name=$(wget -qO- https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/ | grep "linux-image" | grep "generic" | awk -F'\">' '/i386.deb/{print $2}' | cut -d'<' -f1 | head -1)
+        deb_kernel_url="https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/${deb_name}"
+        deb_kernel_name="linux-image-${kernel}-i386.deb"
+        modules_deb_name=$(wget -qO- https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/ | grep "linux-modules" | grep "generic" | awk -F'\">' '/i386.deb/{print $2}' | cut -d'<' -f1 | head -1)
+        deb_kernel_modules_url="https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/${modules_deb_name}"
+        deb_kernel_modules_name="linux-modules-${kernel}-i386.deb"
+    fi
+    [ -z "${deb_name}" ] && _error "Getting Linux kernel binary package name failed, maybe kernel build failed. Please choose other one and try again."
+}
+
+get_char() {
+    SAVEDSTTY=`stty -g`
+    stty -echo
+    stty cbreak
+    dd if=/dev/tty bs=1 count=1 2> /dev/null
+    stty -raw
+    stty echo
+    stty $SAVEDSTTY
+}
+
+check_bbr_status() {
+    local param=$(sysctl net.ipv4.tcp_congestion_control | awk '{print $3}')
+    if [[ x"${param}" == x"bbr" ]]; then
+        return 0
+    else
+        return 1
+    fi
+}
+
+check_kernel_version() {
+    local kernel_version=$(uname -r | cut -d- -f1)
+    if _version_ge ${kernel_version} 4.9; then
+        return 0
+    else
+        return 1
+    fi
+}
+
+# Check OS version
+check_os() {
+    if _exists "virt-what"; then
+        virt="$(virt-what)"
+    elif _exists "systemd-detect-virt"; then
+        virt="$(systemd-detect-virt)"
+    fi
+    if [ -n "${virt}" -a "${virt}" = "lxc" ]; then
+        _error "Virtualization method is LXC, which is not supported."
+    fi
+    if [ -n "${virt}" -a "${virt}" = "openvz" ] || [ -d "/proc/vz" ]; then
+        _error "Virtualization method is OpenVZ, which is not supported."
+    fi
+    [ -z "$(_os)" ] && _error "Not supported OS"
+    case "$(_os)" in
+        ubuntu)
+            [ -n "$(_os_ver)" -a "$(_os_ver)" -lt 16 ] && _error "Not supported OS, please change to Ubuntu 16+ and try again."
+            ;;
+        debian)
+            [ -n "$(_os_ver)" -a "$(_os_ver)" -lt 8 ] &&  _error "Not supported OS, please change to Debian 8+ and try again."
+            ;;
+        centos)
+            [ -n "$(_os_ver)" -a "$(_os_ver)" -lt 6 ] &&  _error "Not supported OS, please change to CentOS 6+ and try again."
+            ;;
+        *)
+            _error "Not supported OS"
+            ;;
+    esac
+}
+
+sysctl_config() {
+    sed -i '/net.core.default_qdisc/d' /etc/sysctl.conf
+    sed -i '/net.ipv4.tcp_congestion_control/d' /etc/sysctl.conf
+    echo "net.core.default_qdisc = fq" >> /etc/sysctl.conf
+    echo "net.ipv4.tcp_congestion_control = bbr" >> /etc/sysctl.conf
+    sysctl -p >/dev/null 2>&1
+}
+
+install_kernel() {
+    case "$(_os)" in
+        centos)
+            if [ -n "$(_os_ver)" ]; then
+                if ! _exists "perl"; then
+                    _error_detect "yum install -y perl"
+                fi
+                if [ "$(_os_ver)" -eq 6 ]; then
+                    _error_detect "rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org"
+                    rpm_kernel_url="https://dl.lamp.sh/files/"
+                    if _is_64bit; then
+                        rpm_kernel_name="kernel-ml-4.18.20-1.el6.elrepo.x86_64.rpm"
+                        rpm_kernel_devel_name="kernel-ml-devel-4.18.20-1.el6.elrepo.x86_64.rpm"
+                    else
+                        rpm_kernel_name="kernel-ml-4.18.20-1.el6.elrepo.i686.rpm"
+                        rpm_kernel_devel_name="kernel-ml-devel-4.18.20-1.el6.elrepo.i686.rpm"
+                    fi
+                    _error_detect "wget -c -t3 -T60 -O ${rpm_kernel_name} ${rpm_kernel_url}${rpm_kernel_name}"
+                    _error_detect "wget -c -t3 -T60 -O ${rpm_kernel_devel_name} ${rpm_kernel_url}${rpm_kernel_devel_name}"
+                    [ -s "${rpm_kernel_name}" ] && _error_detect "rpm -ivh ${rpm_kernel_name}" || _error "Download ${rpm_kernel_name} failed, please check it."
+                    [ -s "${rpm_kernel_devel_name}" ] && _error_detect "rpm -ivh ${rpm_kernel_devel_name}" || _error "Download ${rpm_kernel_devel_name} failed, please check it."
+                    rm -f ${rpm_kernel_name} ${rpm_kernel_devel_name}
+                    [ ! -f "/boot/grub/grub.conf" ] && _error "/boot/grub/grub.conf not found, please check it."
+                    sed -i 's/^default=.*/default=0/g' /boot/grub/grub.conf
+                elif [ "$(_os_ver)" -eq 7 ]; then
+                    rpm_kernel_url="https://dl.lamp.sh/kernel/el7/"
+                    if _is_64bit; then
+                        rpm_kernel_name="kernel-ml-5.15.38-1.el7.x86_64.rpm"
+                        rpm_kernel_devel_name="kernel-ml-devel-5.15.38-1.el7.x86_64.rpm"
+                    else
+                        _error "Not supported architecture, please change to 64-bit architecture."
+                    fi
+                    _error_detect "wget -c -t3 -T60 -O ${rpm_kernel_name} ${rpm_kernel_url}${rpm_kernel_name}"
+                    _error_detect "wget -c -t3 -T60 -O ${rpm_kernel_devel_name} ${rpm_kernel_url}${rpm_kernel_devel_name}"
+                    [ -s "${rpm_kernel_name}" ] && _error_detect "rpm -ivh ${rpm_kernel_name}" || _error "Download ${rpm_kernel_name} failed, please check it."
+                    [ -s "${rpm_kernel_devel_name}" ] && _error_detect "rpm -ivh ${rpm_kernel_devel_name}" || _error "Download ${rpm_kernel_devel_name} failed, please check it."
+                    rm -f ${rpm_kernel_name} ${rpm_kernel_devel_name}
+                    /usr/sbin/grub2-set-default 0
+                fi
+            fi
+            ;;
+        ubuntu|debian)
+            _info "Getting latest kernel version..."
+            get_latest_version
+            if [ -n "${modules_deb_name}" ]; then
+                _error_detect "wget -c -t3 -T60 -O ${deb_kernel_modules_name} ${deb_kernel_modules_url}"
+            fi
+            _error_detect "wget -c -t3 -T60 -O ${deb_kernel_name} ${deb_kernel_url}"
+            _error_detect "dpkg -i ${deb_kernel_modules_name} ${deb_kernel_name}"
+            rm -f ${deb_kernel_modules_name} ${deb_kernel_name}
+            _error_detect "/usr/sbin/update-grub"
+            ;;
+        *)
+            ;; # do nothing
+    esac
+}
+
+reboot_os() {
+    echo
+    _info "The system needs to reboot."
+    read -p "Do you want to restart system? [y/n]" is_reboot
+    if [[ ${is_reboot} == "y" || ${is_reboot} == "Y" ]]; then
+        reboot
+    else
+        _info "Reboot has been canceled..."
+        exit 0
+    fi
+}
+
+install_bbr() {
+    if check_bbr_status; then
+        echo
+        _info "TCP BBR has already been enabled. nothing to do..."
+        exit 0
+    fi
+    if check_kernel_version; then
+        echo
+        _info "The kernel version is greater than 4.9, directly setting TCP BBR..."
+        sysctl_config
+        _info "Setting TCP BBR completed..."
+        exit 0
+    fi
+    check_os
+    install_kernel
+    sysctl_config
+    reboot_os
+}
+
+[[ $EUID -ne 0 ]] && _error "This script must be run as root"
+opsy=$( _os_full )
+arch=$( uname -m )
+lbit=$( getconf LONG_BIT )
+kern=$( uname -r )
+
+clear
+echo "---------- System Information ----------"
+echo " OS      : $opsy"
+echo " Arch    : $arch ($lbit Bit)"
+echo " Kernel  : $kern"
+echo "----------------------------------------"
+echo " Automatically enable TCP BBR script"
+echo
+echo " URL: https://teddysun.com/489.html"
+echo "----------------------------------------"
+echo
+echo "Press any key to start...or Press Ctrl+C to cancel"
+char=$(get_char)
+
+install_bbr 2>&1 | tee ${cur_dir}/install_bbr.log