unlock.sh

#!/bin/bash
green='\033[0;32m'
yellow='\033[0;33m'
plain='\033[0m'
red='\033[0;31m'
green=[${green}OK${plain}]
yellow=[${yellow}Info${plain}]
red=[${red}Error${plain}]

unlock(){
if grep -Eqi "CentOS" /etc/issue || grep -Eq "CentOS" /etc/*-release; then
    yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
    yum install bind-utils
    echo y | yum install -y dnsmasq
elif grep -Eqi "Debian" /etc/issue || grep -Eq "Debian" /etc/*-release; then
    apt-get update
    apt-get install dnsutils
    apt install -y dnsmasq
elif grep -Eqi "Ubuntu" /etc/issue || grep -Eq "Ubuntu" /etc/*-release; then
    apt-get update
    apt-get install dnsutils
    apt install -y dnsmasq
else
    echo "This script only supports CentOS, Ubuntu and Debian."
    exit 1
fi

if [ $? -eq 0 ]; then
	#下载域名列表文件
	wget -O proxy-domains.txt https://raw.githubusercontent.com/AltonHuo/rule_our/refs/heads/main/dns_hijacking_domain_names.txt
	systemctl enable dnsmasq
	chattr -i /etc/resolv.conf

	if [ ! -f '/etc/resolv.conf.bak' ];then
		cp -f /etc/resolv.conf /etc/resolv.conf.bak
	fi
	rm -f /etc/resolv.conf
	echo "nameserver 127.0.0.1" > /etc/resolv.conf
	chattr +i /etc/resolv.conf

if [ -s "proxy-domains.txt" ]; then
	#调用域名列表
	cat > /etc/dnsmasq.d/unlock.conf <<EOF
domain-needed
bogus-priv
no-resolv
no-poll
all-servers
server=8.8.8.8
server=1.1.1.1
cache-size=2048
local-ttl=60
interface=*
address=/bilibili.com/$1
EOF
    while read -r domain; do
      echo "address=/$domain/$1" >> "/etc/dnsmasq.d/unlock.conf"
    done < "proxy-domains.txt"
    rm -f proxy-domains.txt
else
	#使用本地默认代理域名列表
 	echo -e "${yellow} 代理域名列表获取失败，使用本地默认代理域名列表..."
	cat > /etc/dnsmasq.d/unlock.conf <<EOF
domain-needed
bogus-priv
no-resolv
no-poll
all-servers
server=8.8.8.8
server=1.1.1.1
cache-size=2048
local-ttl=60
interface=*
address=/akadns.net/$1
EOF
fi

    systemctl restart dnsmasq
    echo -e "${green} dnsmasq启动成功"
    echo -e
    echo -e "${yellow} DNS备份文件 /etc/resolv.conf.bak"
    echo -e "${yellow} 系统当前DNS（显示为127.0.0.1是正常）"
    echo -e
    cat /etc/resolv.conf
    echo -e
    echo "---------------------"
    echo -e
    echo -e "${yellow} ping netflix.com为你落地机的ip说明解锁成功"
    echo -e "${yellow} 需要重启你的ss/v2/trojan等代理服务解锁才会生效"
    echo -e
else
    echo -e "${red} dnsmasq安装失败, 请检查仓库状况"
fi
}

re_dns(){
if [ -f '/etc/resolv.conf.bak' ];then
	echo -e "${yellow} 检测到DNS备份文件，从备份文件恢复系统DNS设置..."
	chattr -i /etc/resolv.conf
	rm -f /etc/resolv.conf
	cp -f /etc/resolv.conf.bak /etc/resolv.conf
else
	echo -e "${yellow} 没有备份DNS文件，使用通用DNS"
	chattr -i /etc/resolv.conf
	cat > /etc/resolv.conf <<EOF
nameserver 8.8.8.8
nameserver 1.1.1.1
EOF
fi
	echo -e "${yellow} 禁用dnsmasq服务..."
	systemctl stop dnsmasq
	systemctl disable dnsmasq
	echo -e "${green} 完成，查看当前系统DNS（不是127.0.0.1说明成功）"
	echo "---------------------"
	cat /etc/resolv.conf
}

case "$1" in
"")
echo -e "${yellow} 当前系统DNS"
echo "---------------------"
cat /etc/resolv.conf
;;

"r")
re_dns
;;

#else
*)
unlock $1
;;
esac