312 lines
14 KiB
Django/Jinja
312 lines
14 KiB
Django/Jinja
#!/bin/bash
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set -eo pipefail
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curuser=ymq
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sudo systemctl stop systemd-resolved
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sudo systemctl disable systemd-resolved
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sudo rm /etc/resolv.conf
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echo "nameserver 1.1.1.1" | sudo tee /etc/resolv.conf
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# ==============================================================================
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# 网关主机配置变量 - 请根据你的实际环境修改！
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# ==============================================================================
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# 网关主机的主网卡名称 (例如 eth0, ens5 等)
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GATEWAY_MAIN_INTERFACE="{{ gateway_main_interface }}"
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# 网关主机的内网IP (脚本会自动获取，用于监听和DNS)
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# 我们假设该网卡上有一个内网IP，例如 10.0.0.10
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GATEWAY_LAN_IP=""
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GATEWAY_PUBLIC_IP="" # 网关主机的公网IP，脚本会尝试获取
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GATEWAY_LAN_CIDR="{{ internal_network_range }}" # 你的云平台内部网络的IP范围，例如 10.0.0.0/16
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# SSH SOCKS5 代理配置
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REMOTE_SSH_USER="{{ remote_ssh_user }}" # 远程服务器的SSH用户名
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REMOTE_SSH_IP="{{ remote_ssh_ip }}" # 远程服务器的IP地址
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REMOTE_SSH_PORT="{{ remote_ssh_port }}" # 远程服务器的SSH端口
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LOCAL_SOCKS5_PORT="{{ local_socks5_port }}" # SSH SOCKS5 代理在本机监听的端口 (127.0.0.1:1080)
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# 透明代理工具 redsocks2 监听端口
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REDSOCKS_PORT="{{ redsocks_port }}" # redsocks2 在本机监听的端口
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# DNSMASQ 配置
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DNSMASQ_LISTEN_IP="" # 脚本会自动获取 GATEWAY_LAN_IP
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DOMESTIC_DNS="{{ domestic_dns }}" # 国内DNS服务器
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FOREIGN_DNS="{{ foreign_dns }}" # 国外DNS服务器 (通过SSH SOCKS5代理访问)
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# GFWLIST2NEW 工具仓库和安装路径
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GFWLIST2NEW_REPO="{{ gfwlist2new_repo }}"
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GFWLIST2NEW_DIR="{{ gfwlist2new_dir }}"
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# ==============================================================================
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# 通用函数
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# ==============================================================================
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log_info() {
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echo -e "\e[32m[INFO] $(date +'%Y-%m-%d %H:%M:%S') $1\e[0m"
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}
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log_warn() {
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echo -e "\e[33m[WARN] $(date +'%Y-%m-%d %H:%M:%S') $1\e[0m" >&2
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}
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log_error() {
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echo -e "\e[31m[ERROR] $(date +'%Y-%m-%d %H:%M:%S') $1\e[0m" >&2
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exit 1
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}
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check_root() {
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if [[ $EUID -ne 0 ]]; then
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log_error "此脚本必须以 root 用户或使用 sudo 运行。"
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fi
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}
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install_package() {
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PACKAGE="$1"
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if ! dpkg -s "$PACKAGE" &>/dev/null; then
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log_info "安装 $PACKAGE..."
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sudo apt install -y "$PACKAGE" || log_error "安装 $PACKAGE 失败。"
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else
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log_info "$PACKAGE 已安装。"
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fi
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}
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# ==============================================================================
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# 0. 前置检查与环境初始化
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# ==============================================================================
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# check_root
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log_info "开始网关主机配置脚本 (云服务器环境)..."
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log_info "更新系统软件包列表..."
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sudo apt update || log_error "apt update 失败。"
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log_info "禁用 UFW 以避免与 iptables 冲突..."
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sudo ufw disable || log_warn "UFW 未运行或禁用失败，请手动确认。"
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log_info "安装必要工具：net-tools, iptables-persistent, ipset, dnsmasq, redsocks2, git, python3-pip..."
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install_package net-tools
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install_package iptables-persistent
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install_package ipset
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install_package dnsmasq
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install_package redsocks
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install_package git
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install_package python3-pip
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# install_package isc-dhcp-server # 云服务器环境不需要运行 DHCP 服务器
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# 动态获取网关主机的内网IP和公网IP
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log_info "获取网关主机的 IP 地址..."
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GATEWAY_LAN_IP=$(ip -4 addr show dev ${GATEWAY_MAIN_INTERFACE} | grep -oP '(?<=inet\s)\d+(\.\d+){3}' | head -1)
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if [ -z "${GATEWAY_LAN_IP}" ]; then
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log_error "无法获取网卡 ${GATEWAY_MAIN_INTERFACE} 的内网 IP 地址。请检查网卡名称或网络配置。"
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fi
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log_info "网关主机的内网 IP: ${GATEWAY_LAN_IP}"
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# 尝试获取公网IP (可能需要专门的服务或配置，这里假设通常第一个IP是公网或路由器的出口IP)
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# 更准确的获取公网IP方式是 curl ifconfig.me 但这取决于网络能否访问外网
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# 这里我们直接使用网卡IP进行MASQUERADE，或如果云平台有专门的公网IP，需要替换
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GATEWAY_PUBLIC_IP=$(curl -s ifconfig.me) # 尝试通过外部服务获取公网IP，如果无法访问，则MASQUERADE会使用网卡主IP
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if [ -z "${GATEWAY_PUBLIC_IP}" ]; then
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log_warn "无法通过外部服务获取公网 IP。MASQUERADE 将使用网卡主 IP。"
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# 另一种方式是获取该网卡上的任何一个非10. 172.16-31. 192.168. 的IP
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# GATEWAY_PUBLIC_IP=$(ip -4 addr show dev ${GATEWAY_MAIN_INTERFACE} | grep -oP '(?<=inet\s)\d+(\.\d+){3}' | grep -vE '^(10\.|172\.(1[6-9]|2[0-9]|3[0-1])\.|192\.168\.)' | head -1)
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fi
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log_info "网关主机的公网 IP (或出口 IP): ${GATEWAY_PUBLIC_IP:-Using main interface IP}"
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DNSMASQ_LISTEN_IP="${GATEWAY_LAN_IP}"
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# ==============================================================================
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# 1. 配置网卡和 IP 转发
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# ==============================================================================
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log_info "确保网关主机主网卡 (${GATEWAY_MAIN_INTERFACE}) 为 DHCP 模式..."
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# Netplan 配置 (通常云服务器默认就是 DHCP)
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NETPLAN_FILE="/etc/netplan/01-netcfg.yaml"
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# 备份现有配置
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sudo cp ${NETPLAN_FILE} ${NETPLAN_FILE}.bak_$(date +%Y%m%d%H%M%S) || log_warn "备份Netplan文件失败。"
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cat <<EOF | sudo tee ${NETPLAN_FILE} > /dev/null
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network:
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version: 2
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renderer: networkd
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ethernets:
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{{ gateway_main_interface }}:
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dhcp4: true # 云服务器通常使用DHCP获取IP
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optional: true
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EOF
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sudo chmod 600 ${NETPLAN_FILE}
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sudo netplan try --yes
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sudo netplan apply || log_error "应用 Netplan 配置失败，请检查网卡名称。"
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log_info "网卡 ${GATEWAY_MAIN_INTERFACE} 已配置为 DHCP 模式。"
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log_info "开启 IP 转发功能..."
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sudo sed -i '/^#net.ipv4.ip_forward=1/s/^#//' /etc/sysctl.conf || true # 取消注释
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echo "net.ipv4.ip_forward=1" | sudo tee -a /etc/sysctl.conf > /dev/null # 确保添加
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sudo sysctl -p > /dev/null || log_error "应用 sysctl 配置失败。"
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log_info "IP 转发已开启。"
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# ==============================================================================
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# 2. SSH SOCKS5 代理 (使用 Systemd 持久化)
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# ==============================================================================
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log_info "${curuser}:配置 SSH SOCKS5 代理 Systemd 服务..."
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SSH_SOCKS5_SERVICE_FILE="/etc/systemd/system/ssh-socks5.service"
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# 动态创建 Service 文件
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cat <<EOF | sudo tee ${SSH_SOCKS5_SERVICE_FILE} > /dev/null
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[Unit]
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Description=SSH SOCKS5 Proxy Service
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After=network-online.target
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[Service]
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User=${curuser}
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Type=simple
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# 注意：这里需要确保用户 {{ remote_ssh_user }} 是一个实际存在的用户，并且可以访问其 $HOME/.ssh
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# 为了简化，我们暂时用root运行，但更推荐使用非root用户
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ExecStart=/usr/bin/ssh -D ${LOCAL_SOCKS5_PORT} -N -p ${REMOTE_SSH_PORT} ${REMOTE_SSH_USER}@${REMOTE_SSH_IP} -o ExitOnForwardFailure=yes -o ServerAliveInterval=60 -o ServerAliveCountMax=3
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# 使用 Restart 策略确保连接断开时自动重连
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Restart=always
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RestartSec=5
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[Install]
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WantedBy=multi-user.target
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EOF
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log_info "启动并启用 SSH SOCKS5 代理服务..."
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sudo systemctl daemon-reload
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sudo systemctl enable ssh-socks5.service || log_error "启用 ssh-socks5 服务失败。"
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sudo systemctl restart ssh-socks5.service || log_error "启动 ssh-socks5 服务失败。请检查连接和免密登录配置。"
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sleep 5 # 留出时间让服务启动和重试
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if ! ss -tnlp | grep ":${LOCAL_SOCKS5_PORT}" &>/dev/null; then
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log_error "SSH SOCKS5 代理端口 ${LOCAL_SOCKS5_PORT} 未在监听。请手动检查 SSH 进程。"
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fi
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log_info "SSH SOCKS5 代理已通过 Systemd 启动，并在 127.0.0.1:${LOCAL_SOCKS5_PORT} 监听，支持自动重连。"
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# ==============================================================================
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# 3. Redsocks2 透明代理 (保持不变)
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# ==============================================================================
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log_info "配置 redsocks2 透明代理..."
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sudo cp /etc/redsocks.conf /etc/redsocks.conf.bak_$(date +%Y%m%d%H%M%S) || log_warn "备份 redsocks.conf 失败。"
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cat <<EOF | sudo tee /etc/redsocks.conf > /dev/null
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base {
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log_debug = off;
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log_info = on;
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log = "syslog:daemon";
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daemon = on;
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redirector = iptables;
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}
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redsocks {
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local_ip = 127.0.0.1;
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local_port = ${REDSOCKS_PORT};
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ip = 127.0.0.1;
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port = ${LOCAL_SOCKS5_PORT};
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type = socks5;
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}
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EOF
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sudo systemctl restart redsocks2 || log_error "重启 redsocks2 服务失败。"
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sudo systemctl enable redsocks2 || log_error "启用 redsocks2 服务失败。"
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log_info "redsocks2 透明代理已配置并启动，监听 127.0.0.1:${REDSOCKS_PORT}。"
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# ==============================================================================
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# 4. Dnsmasq 智能 DNS 转发 (保持不变，监听内网IP)
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# ==============================================================================
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log_info "配置 dnsmasq 智能 DNS 转发..."
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sudo cp /etc/dnsmasq.conf /etc/dnsmasq.conf.bak_$(date +%Y%m%d%H%M%S) || log_warn "备份 dnsmasq.conf 失败。"
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sudo rm -f /etc/dnsmasq.d/* # 清理旧的额外配置
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cat <<EOF | sudo tee /etc/dnsmasq.conf > /dev/null
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listen-address=${DNSMASQ_LISTEN_IP},127.0.0.1
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no-resolv
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no-poll
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server={{ domestic_dns }}
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conf-dir=/etc/dnsmasq.d
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EOF
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# 确保 dnsmasq 不会干扰云平台的DHCP (不再是 isc-dhcp-server)
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# 这些选项只是建议，如果云平台DHCP工作良好，可能不需要
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# echo "dhcp-option=option:router,${GATEWAY_LAN_IP}" | sudo tee -a /etc/dnsmasq.conf > /dev/null
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# echo "dhcp-option=option:dns-server,${GATEWAY_LAN_IP}" | sudo tee -a /etc/dnsmasq.conf > /dev/null
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sudo systemctl restart dnsmasq || log_error "重启 dnsmasq 服务失败。"
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sudo systemctl enable dnsmasq || log_error "启用 dnsmasq 服务失败。"
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log_info "dnsmasq 智能 DNS 转发已初步配置，监听 ${DNSMASQ_LISTEN_IP}。"
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# ==============================================================================
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# 5. 安装和配置 gfwlist2new (保持不变)
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# ==============================================================================
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log_info "安装和配置 gfwlist2new 工具..."
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if [ ! -d "${GFWLIST2NEW_DIR}" ]; then
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log_info "克隆 gfwlist2new 仓库..."
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sudo git clone "{{ gfwlist2new_repo }}" "${GFWLIST2NEW_DIR}" || log_error "克隆 gfwlist2new 仓库失败。"
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fi
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cd "${GFWLIST2NEW_DIR}"
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log_info "安装 gfwlist2new 依赖..."
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sudo pip3 install -r requirements.txt || log_error "安装 gfwlist2new 依赖失败。"
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log_info "配置 gfwlist2new 的配置文件 config.conf..."
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sudo cp config.conf config.conf.bak_$(date +%Y%m%d%H%M%S) || log_warn "备份 gfwlist2new config.conf 失败。"
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cat <<EOF | sudo tee config.conf > /dev/null
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[DEFAULT]
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IPSET_NAME = gfwlist
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IPSET_FILE = /etc/ipset/gfwlist.conf
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DNSMASQ_CONF_PATH = /etc/dnsmasq.d/gfwlist_router.conf
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DNSMASQ_LOG_PATH = /var/log/dnsmasq.log
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DNS_PROXY_SERVER = 127.0.0.1#${REDSOCKS_PORT} # 这里的端口要指向 redsocks2
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Proxy Config
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SOCKS5_SERVER = 127.0.0.1:${LOCAL_SOCKS5_PORT} # 这里的端口是SSH SOCKS5代理
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GITHUB_RAW_URL = raw.githubusercontent.com
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EOF
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log_info "执行 gfwlist2new 生成 ipset 和 dnsmasq 规则..."
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sudo python3 gfwlist2new.py -s "${SOCKS5_SERVER}" -f "{{ foreign_dns }}" -d "{{ domestic_dns }}" || log_error "gfwlist2new 运行失败。"
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sudo systemctl restart dnsmasq || log_error "重启 dnsmasq (gfwlist) 失败。"
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log_info "设置 gfwlist2new 定时更新任务 (每天凌晨 3:00)..."
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(sudo crontab -l 2>/dev/null; echo "0 3 * * * cd ${GFWLIST2NEW_DIR} && sudo python3 gfwlist2new.py -s ${SOCKS5_SERVER} -f {{ foreign_dns }} -d {{ domestic_dns }} && sudo systemctl restart dnsmasq") | sudo crontab -
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log_info "gfwlist2new 配置完成并设置定时更新。"
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cd - > /dev/null
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# ==============================================================================
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# 6. 配置 IPTABLES 规则实现透明代理和 NAT (针对单网卡环境)
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# ==============================================================================
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log_info "配置 IPTABLES 规则 (NAT 和透明代理，针对云服务器单网卡环境)..."
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sudo iptables -F
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sudo iptables -X
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sudo iptables -t nat -F
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sudo iptables -t nat -X
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sudo iptables -t mangle -F
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sudo iptables -t mangle -X
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# 1. 开启 NAT (使内网访问外网)
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# MASQUERADE 应该基于出口接口，这里就是 GATEWAY_MAIN_INTERFACE
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# --to-source 可以明确指定公网IP，如果GATEWAY_PUBLIC_IP能获取到
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if [ -n "${GATEWAY_PUBLIC_IP}" ]; then
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sudo iptables -t nat -A POSTROUTING -o ${GATEWAY_MAIN_INTERFACE} -s ${GATEWAY_LAN_CIDR} -j SNAT --to-source ${GATEWAY_PUBLIC_IP}
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log_info "已配置 NAT 规则，出口IP为 ${GATEWAY_PUBLIC_IP}。"
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else
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sudo iptables -t nat -A POSTROUTING -o ${GATEWAY_MAIN_INTERFACE} -s ${GATEWAY_LAN_CIDR} -j MASQUERADE
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log_info "已配置 NAT 规则，使用 ${GATEWAY_MAIN_INTERFACE} 主IP作为出口。"
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fi
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# 2. IP 转发规则 (允许所有来自内网段的流量通过 GATEWAY_MAIN_INTERFACE 转发)
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# 这里更简化，所有来自内网段的流量都接受转发
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sudo iptables -A FORWARD -s ${GATEWAY_LAN_CIDR} -o ${GATEWAY_MAIN_INTERFACE} -j ACCEPT
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sudo iptables -A FORWARD -i ${GATEWAY_MAIN_INTERFACE} -d ${GATEWAY_LAN_CIDR} -m state --state RELATED,ESTABLISHED -j ACCEPT
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log_info "已配置 IP 转发规则。"
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# 3. 透明代理规则 (使用 redsocks2 和 ipset)
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# 重定向所有来自内网段的 TCP 流量，如果目标IP在 gfwlist 中，则到 redsocks2
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sudo iptables -t nat -A PREROUTING -i ${GATEWAY_MAIN_INTERFACE} -p tcp -s ${GATEWAY_LAN_CIDR} -m set --match-set gfwlist dst -j REDIRECT --to-ports ${REDSOCKS_PORT}
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log_info "已配置透明代理重定向规则 (所有端口，目标IP在 gfwlist 中的内网TCP流量到 redsocks2)。"
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# 4. 排除 redsocks2 自身流量循环 (保持不变)
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sudo iptables -t nat -A OUTPUT -p tcp -d 127.0.0.1 --dport ${REDSOCKS_PORT} -j RETURN
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sudo iptables -t nat -A OUTPUT -p tcp -d 127.0.0.1 --dport ${LOCAL_SOCKS5_PORT} -j RETURN
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log_info "已配置排除 redsocks2 自身流量循环的规则。"
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# 保存 iptables 规则
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sudo netfilter-persistent save || log_error "保存 iptables 规则失败。"
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sudo systemctl enable netfilter-persistent || log_error "启用 netfilter-persistent 服务失败。"
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log_info "IPTABLES 规则已配置并保存。"
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log_info "----------------------------------------------------------------------------------"
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log_info "网关云主机配置完成！"
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log_info "请检查 redsocks2 和 ssh -D 进程是否正常运行。"
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log_info "请注意：SSH SOCKS5 代理可能需要手动输入密码或配置免密登录才能持久运行。"
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log_info "----------------------------------------------------------------------------------"
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