606 lines
22 KiB
Bash
606 lines
22 KiB
Bash
#!/bin/bash
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# ============================================================
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# VPS 一键优化脚本
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# 适用: Debian 12 + VLESS + WS + TLS + Cloudflare CDN
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# 功能: BBR / 内核参数 / 文件描述符 / Nginx / CF IP 白名单
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# ============================================================
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set -euo pipefail
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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CYAN='\033[0;36m'
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BOLD='\033[1m'
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NC='\033[0m'
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info() { echo -e "${CYAN}[INFO]${NC} $1"; }
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success() { echo -e "${GREEN}[OK]${NC} $1"; }
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warning() { echo -e "${YELLOW}[!]${NC} $1"; }
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error() { echo -e "${RED}[ERR]${NC} $1"; exit 1; }
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step() { echo -e "\n${BOLD}${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}\n${BOLD}${YELLOW} $1${NC}\n${BOLD}${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"; }
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# ── 记录优化结果供最终报告用 ──────────────────────────────────
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RESULTS=()
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add_result() { RESULTS+=("$1"); }
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# ============================================================
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# 0. 前置检查
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# ============================================================
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check_root() {
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[[ $EUID -eq 0 ]] || error "请使用 root 用户运行: sudo bash vps_optimize.sh"
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}
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check_debian() {
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[[ -f /etc/debian_version ]] || error "此脚本仅支持 Debian / Ubuntu 系统"
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info "系统: $(lsb_release -d 2>/dev/null | cut -f2)"
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info "内核: $(uname -r)"
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}
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print_banner() {
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clear
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echo -e "${CYAN}"
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echo "╔══════════════════════════════════════════════════════╗"
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echo "║ VPS 一键优化脚本 ║"
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echo "║ VLESS + WS + TLS + Cloudflare CDN ║"
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echo "╚══════════════════════════════════════════════════════╝"
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echo -e "${NC}"
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}
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# ============================================================
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# 1. 收集配置参数
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# ============================================================
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NGINX_PORT=""
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WS_PATH=""
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DOMAIN=""
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ENABLE_CF_WHITELIST="y"
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detect_existing_config() {
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step "🔍 检测现有配置"
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# 从 nginx 配置自动读取端口和路径
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local nginx_conf
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nginx_conf=$(find /etc/nginx/sites-enabled/ -type f 2>/dev/null | xargs grep -l "proxy_pass" 2>/dev/null | head -1)
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if [[ -n "$nginx_conf" ]]; then
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local detected_port detected_path detected_domain
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detected_port=$(grep -E 'listen\s+[0-9]+\s+ssl' "$nginx_conf" 2>/dev/null | grep -oE '[0-9]+' | head -1)
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detected_path=$(grep -E 'location\s+/' "$nginx_conf" 2>/dev/null | awk '{print $2}' | head -1)
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detected_domain=$(grep 'server_name' "$nginx_conf" 2>/dev/null | awk '{print $2}' | tr -d ';' | head -1)
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[[ -n "$detected_port" ]] && NGINX_PORT="$detected_port"
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[[ -n "$detected_path" ]] && WS_PATH="$detected_path"
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[[ -n "$detected_domain" ]] && DOMAIN="$detected_domain"
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info "从 $nginx_conf 读取到:"
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[[ -n "$NGINX_PORT" ]] && info " 端口: $NGINX_PORT"
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[[ -n "$WS_PATH" ]] && info " 路径: $WS_PATH"
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[[ -n "$DOMAIN" ]] && info " 域名: $DOMAIN"
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else
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warning "未检测到现有 nginx 配置"
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fi
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}
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collect_params() {
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step "⚙️ 配置参数确认"
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# 端口
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if [[ -z "$NGINX_PORT" ]]; then
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read -rp " 请输入 Nginx 对外监听端口 [默认 2053]: " input
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NGINX_PORT="${input:-2053}"
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else
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read -rp " 检测到端口 ${NGINX_PORT}，直接回车确认或输入新值: " input
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[[ -n "$input" ]] && NGINX_PORT="$input"
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fi
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# WS 路径
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if [[ -z "$WS_PATH" ]]; then
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read -rp " 请输入 WebSocket 路径 [默认 /stickrouter]: " input
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WS_PATH="${input:-/stickrouter}"
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else
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read -rp " 检测到 WS 路径 ${WS_PATH}，直接回车确认或输入新值: " input
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[[ -n "$input" ]] && WS_PATH="$input"
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fi
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# 域名（CF 白名单需要）
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if [[ -z "$DOMAIN" ]]; then
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read -rp " 请输入域名（用于 CF 白名单，留空跳过）: " DOMAIN
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else
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read -rp " 检测到域名 ${DOMAIN}，直接回车确认或输入新值: " input
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[[ -n "$input" ]] && DOMAIN="$input"
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fi
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# 是否开启 CF IP 白名单
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read -rp " 是否开启 Cloudflare IP 白名单限制 2053 端口? (Y/n): " input
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input="${input:-y}"
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[[ "$input" =~ ^[Nn]$ ]] && ENABLE_CF_WHITELIST="n" || ENABLE_CF_WHITELIST="y"
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echo ""
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echo -e " ${BOLD}确认配置:${NC}"
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echo -e " Nginx 端口 : ${GREEN}${NGINX_PORT}${NC}"
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echo -e " WS 路径 : ${GREEN}${WS_PATH}${NC}"
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echo -e " 域名 : ${GREEN}${DOMAIN:-（跳过）}${NC}"
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echo -e " CF 白名单 : ${GREEN}${ENABLE_CF_WHITELIST}${NC}"
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echo ""
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read -rp " 确认以上信息，按 Enter 继续，输入 n 重填: " confirm
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[[ "$confirm" =~ ^[Nn]$ ]] && collect_params
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}
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# ============================================================
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# 2. BBR 拥塞控制
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# ============================================================
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optimize_bbr() {
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step "🚀 BBR 拥塞控制"
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local current
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current=$(sysctl -n net.ipv4.tcp_congestion_control 2>/dev/null)
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info "当前拥塞算法: $current"
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# 检查内核是否支持 BBR
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if ! modprobe tcp_bbr 2>/dev/null && ! lsmod | grep -q bbr; then
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warning "内核不支持 BBR，跳过（建议升级内核）"
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add_result "❌ BBR: 内核不支持"
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return
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fi
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# 写入 sysctl（先去重再追加）
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local sysctl_file="/etc/sysctl.d/99-bbr.conf"
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cat > "$sysctl_file" << 'EOF'
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# BBR 拥塞控制
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net.core.default_qdisc = fq
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net.ipv4.tcp_congestion_control = bbr
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EOF
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sysctl -p "$sysctl_file" &>/dev/null
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local after
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after=$(sysctl -n net.ipv4.tcp_congestion_control 2>/dev/null)
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if [[ "$after" == "bbr" ]]; then
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success "BBR 已启用"
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add_result "✅ BBR: 已启用"
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else
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warning "BBR 写入成功但未立即生效，重启后生效"
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add_result "⚠️ BBR: 重启后生效"
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fi
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}
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# ============================================================
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# 3. 内核网络参数
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# ============================================================
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optimize_sysctl() {
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step "🔧 内核网络参数调优"
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local sysctl_file="/etc/sysctl.d/99-vps-optimize.conf"
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cat > "$sysctl_file" << 'EOF'
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# ── 接收/发送缓冲区（WebSocket 长连接）────────────────────────
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net.core.rmem_max = 67108864
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net.core.wmem_max = 67108864
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net.ipv4.tcp_rmem = 4096 87380 67108864
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net.ipv4.tcp_wmem = 4096 65536 67108864
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net.core.netdev_max_backlog = 250000
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# ── 连接队列（并发连接）────────────────────────────────────────
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net.core.somaxconn = 32768
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net.ipv4.tcp_max_syn_backlog = 16384
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# ── TIME_WAIT 优化 ─────────────────────────────────────────────
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net.ipv4.tcp_tw_reuse = 1
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net.ipv4.tcp_fin_timeout = 15
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net.ipv4.tcp_max_tw_buckets = 5000
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# ── WebSocket 保活 ─────────────────────────────────────────────
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net.ipv4.tcp_keepalive_time = 300
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net.ipv4.tcp_keepalive_intvl = 30
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net.ipv4.tcp_keepalive_probes = 3
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# ── 其他 ───────────────────────────────────────────────────────
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net.ipv4.tcp_fastopen = 3
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net.ipv4.tcp_mtu_probing = 1
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net.ipv4.ip_local_port_range = 10000 65535
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EOF
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if sysctl -p "$sysctl_file" &>/dev/null; then
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success "内核参数写入: $sysctl_file"
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add_result "✅ 内核参数: 已优化"
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else
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warning "部分内核参数应用失败，请检查 $sysctl_file"
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add_result "⚠️ 内核参数: 部分失败"
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fi
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}
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# ============================================================
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# 4. 文件描述符
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# ============================================================
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optimize_nofile() {
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step "📁 文件描述符限制"
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local limits_file="/etc/security/limits.d/99-nofile.conf"
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cat > "$limits_file" << 'EOF'
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* soft nofile 65535
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* hard nofile 65535
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root soft nofile 65535
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root hard nofile 65535
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EOF
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success "limits.conf 写入: $limits_file"
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# systemd 服务单独设置
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for svc in sing-box nginx xray; do
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if systemctl list-unit-files "${svc}.service" &>/dev/null 2>&1 | grep -q "$svc"; then
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local override_dir="/etc/systemd/system/${svc}.service.d"
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mkdir -p "$override_dir"
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cat > "${override_dir}/limits.conf" << 'EOF'
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[Service]
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LimitNOFILE=65535
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EOF
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success "systemd override 写入: ${svc}.service"
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fi
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done
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systemctl daemon-reload 2>/dev/null || true
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# 立即对当前 session 生效
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ulimit -n 65535 2>/dev/null || true
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add_result "✅ 文件描述符: 已设置为 65535"
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}
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# ============================================================
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# 5. Nginx 优化
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# ============================================================
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optimize_nginx() {
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step "🌐 Nginx 配置优化"
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if ! command -v nginx &>/dev/null; then
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warning "未检测到 nginx，跳过"
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add_result "❌ Nginx: 未安装"
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return
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fi
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# 找到 sing-box/vless 相关的 nginx 配置
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local nginx_conf
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nginx_conf=$(find /etc/nginx/sites-available/ -type f 2>/dev/null | \
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xargs grep -l "proxy_pass" 2>/dev/null | head -1)
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if [[ -z "$nginx_conf" ]]; then
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warning "未找到反代配置文件，跳过 Nginx 优化"
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add_result "⚠️ Nginx: 未找到配置"
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return
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fi
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info "目标配置文件: $nginx_conf"
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# 备份原配置
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local backup="${nginx_conf}.bak.$(date +%Y%m%d%H%M%S)"
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cp "$nginx_conf" "$backup"
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info "已备份至: $backup"
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# ── 5a. 全局 nginx.conf 优化 ──────────────────────────────
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local nginx_main="/etc/nginx/nginx.conf"
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# worker_processes 改为 auto
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sed -i 's/worker_processes\s\+[0-9]\+/worker_processes auto/' "$nginx_main" 2>/dev/null || true
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# worker_connections 提升（在 events 块内）
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sed -i '/events\s*{/,/}/{s/worker_connections\s\+[0-9]\+/worker_connections 65535/}' "$nginx_main" 2>/dev/null || true
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# 写入 nginx 全局调优 snippet（不覆盖主配置）
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cat > /etc/nginx/conf.d/99-optimize.conf << 'EOF'
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# ── TCP 优化 ───────────────────────────────────────────────────
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tcp_nopush on;
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tcp_nodelay on;
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sendfile on;
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# ── 连接超时 ───────────────────────────────────────────────────
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keepalive_timeout 300s;
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keepalive_requests 10000;
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client_header_timeout 30s;
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client_body_timeout 30s;
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send_timeout 30s;
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# ── 缓冲 ───────────────────────────────────────────────────────
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client_body_buffer_size 128k;
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client_max_body_size 10m;
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proxy_buffer_size 4k;
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proxy_buffers 8 4k;
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EOF
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# ── 5b. 站点配置优化（替换/追加关键指令）──────────────────
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# 用 python3 做精确修改，避免 sed 处理多行的麻烦
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python3 - "$nginx_conf" "$NGINX_PORT" "$WS_PATH" << 'PYEOF'
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import sys, re
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conf_path = sys.argv[1]
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port = sys.argv[2]
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ws_path = sys.argv[3]
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with open(conf_path) as f:
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content = f.read()
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# ── SSL 优化 ───────────────────────────────────────────────────
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# 替换 ssl_protocols
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content = re.sub(r'ssl_protocols\s+[^;]+;',
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'ssl_protocols TLSv1.2 TLSv1.3;', content)
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# 替换 ssl_ciphers
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content = re.sub(r'ssl_ciphers\s+[^;]+;',
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'ssl_ciphers TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256;',
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content)
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# ssl_prefer_server_ciphers off（TLS1.3 客户端优先）
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content = re.sub(r'ssl_prefer_server_ciphers\s+\w+;',
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'ssl_prefer_server_ciphers off;', content)
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# session 复用
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for old, new in [
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(r'ssl_session_cache\s+[^;]+;', 'ssl_session_cache shared:SSL:20m;'),
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(r'ssl_session_timeout\s+[^;]+;', 'ssl_session_timeout 1d;'),
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]:
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if re.search(old, content):
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content = re.sub(old, new, content)
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# 追加 ssl_session_tickets 和 ssl_buffer_size（如果没有）
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ssl_block_end = content.rfind('ssl_session')
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if 'ssl_session_tickets' not in content:
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content = re.sub(r'(ssl_session_timeout\s+[^;]+;)',
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r'\1\n ssl_session_tickets off;\n ssl_buffer_size 4k;', content)
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# ── WebSocket location 块优化 ──────────────────────────────────
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def patch_location(m):
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block = m.group(0)
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patches = {
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r'proxy_read_timeout\s+[^;]+;': 'proxy_read_timeout 600s;',
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r'proxy_send_timeout\s+[^;]+;': 'proxy_send_timeout 600s;',
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r'proxy_connect_timeout\s+[^;]+;': 'proxy_connect_timeout 10s;',
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}
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for pattern, replacement in patches.items():
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if re.search(pattern, block):
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block = re.sub(pattern, replacement, block)
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else:
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# 在 proxy_buffering off; 后面追加
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block = block.replace('proxy_buffering off;',
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f'proxy_buffering off;\n {replacement}')
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# 确保有 tcp_nodelay
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if 'tcp_nodelay' not in block:
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block = block.replace('proxy_buffering off;',
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'proxy_buffering off;\n tcp_nodelay on;')
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return block
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content = re.sub(
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r'location\s+' + re.escape(ws_path) + r'\s*\{[^}]+\}',
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patch_location,
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content,
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flags=re.DOTALL
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)
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with open(conf_path, 'w') as f:
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f.write(content)
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print(" Nginx 站点配置已更新")
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PYEOF
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# 测试配置
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if nginx -t 2>/dev/null; then
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systemctl reload nginx
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success "Nginx 优化完成并重载"
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add_result "✅ Nginx: 已优化并重载"
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else
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warning "Nginx 配置测试失败，正在回滚..."
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cp "$backup" "$nginx_conf"
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systemctl reload nginx 2>/dev/null || true
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add_result "❌ Nginx: 优化失败已回滚"
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fi
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}
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# ============================================================
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# 6. sing-box / xray 服务优化
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# ============================================================
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optimize_proxy_service() {
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step "⚡ 代理服务优化"
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local found=0
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for svc in sing-box xray; do
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if systemctl is-active --quiet "$svc" 2>/dev/null; then
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info "检测到运行中的服务: $svc"
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systemctl restart "$svc"
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success "$svc 已重启（文件描述符 override 生效）"
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add_result "✅ ${svc}: 已重启"
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found=1
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fi
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done
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[[ $found -eq 0 ]] && warning "未检测到运行中的 sing-box 或 xray 服务"
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}
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# ============================================================
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# 7. 防火墙 + Cloudflare IP 白名单
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# ============================================================
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setup_cf_whitelist() {
|
||
step "🛡️ Cloudflare IP 白名单"
|
||
|
||
if [[ "$ENABLE_CF_WHITELIST" != "y" ]]; then
|
||
info "已跳过 CF 白名单配置"
|
||
add_result "⏭️ CF 白名单: 已跳过"
|
||
return
|
||
fi
|
||
|
||
if ! command -v ufw &>/dev/null; then
|
||
info "安装 ufw..."
|
||
apt-get install -y -qq ufw
|
||
fi
|
||
|
||
# 保证 SSH 不被锁
|
||
ufw allow 22/tcp comment 'SSH' &>/dev/null
|
||
ufw allow 80/tcp comment 'HTTP' &>/dev/null
|
||
|
||
info "拉取 Cloudflare IP 段..."
|
||
local cf_v4 cf_v6
|
||
cf_v4=$(curl -sf --max-time 10 https://www.cloudflare.com/ips-v4/ 2>/dev/null)
|
||
cf_v6=$(curl -sf --max-time 10 https://www.cloudflare.com/ips-v6/ 2>/dev/null)
|
||
|
||
if [[ -z "$cf_v4" ]]; then
|
||
warning "拉取 CF IP 失败，使用内置 IP 段（可能不是最新）"
|
||
cf_v4="173.245.48.0/20
|
||
103.21.244.0/22
|
||
103.22.200.0/22
|
||
103.31.4.0/22
|
||
141.101.64.0/18
|
||
108.162.192.0/18
|
||
190.93.240.0/20
|
||
188.114.96.0/20
|
||
197.234.240.0/22
|
||
198.41.128.0/17
|
||
162.158.0.0/15
|
||
104.16.0.0/13
|
||
104.24.0.0/14
|
||
172.64.0.0/13
|
||
131.0.72.0/22"
|
||
fi
|
||
|
||
# 先删除旧的 CF 规则
|
||
ufw status numbered 2>/dev/null | grep -E "CF|Cloudflare" | \
|
||
awk -F'[][]' '{print $2}' | sort -rn | \
|
||
xargs -I{} ufw --force delete {} 2>/dev/null || true
|
||
|
||
# 先拒绝所有访问该端口
|
||
ufw deny "${NGINX_PORT}/tcp" comment 'deny-direct' &>/dev/null || true
|
||
|
||
local count=0
|
||
while IFS= read -r ip; do
|
||
[[ -z "$ip" ]] && continue
|
||
ufw allow from "$ip" to any port "$NGINX_PORT" proto tcp comment 'CF' &>/dev/null && ((count++)) || true
|
||
done <<< "$cf_v4"
|
||
|
||
while IFS= read -r ip; do
|
||
[[ -z "$ip" ]] && continue
|
||
ufw allow from "$ip" to any port "$NGINX_PORT" proto tcp comment 'CF' &>/dev/null && ((count++)) || true
|
||
done <<< "$cf_v6"
|
||
|
||
# 开启 ufw（如果未启用）
|
||
if ! ufw status | grep -q "Status: active"; then
|
||
ufw --force enable &>/dev/null
|
||
else
|
||
ufw reload &>/dev/null
|
||
fi
|
||
|
||
success "已添加 ${count} 条 CF IP 规则，端口 ${NGINX_PORT} 仅允许 CF 回源"
|
||
add_result "✅ CF 白名单: ${count} 条规则，端口 ${NGINX_PORT} 已锁定"
|
||
|
||
# 保存 CF IP 更新脚本，供定期执行
|
||
cat > /usr/local/bin/update-cf-whitelist.sh << CFEOF
|
||
#!/bin/bash
|
||
# 更新 Cloudflare IP 白名单
|
||
PORT="${NGINX_PORT}"
|
||
cf_v4=\$(curl -sf --max-time 10 https://www.cloudflare.com/ips-v4/ 2>/dev/null)
|
||
cf_v6=\$(curl -sf --max-time 10 https://www.cloudflare.com/ips-v6/ 2>/dev/null)
|
||
[[ -z "\$cf_v4" ]] && exit 1
|
||
|
||
# 删除旧规则
|
||
ufw status numbered | grep 'CF' | awk -F'[][]' '{print \$2}' | sort -rn | \\
|
||
xargs -I{} ufw --force delete {} 2>/dev/null || true
|
||
|
||
# 重新添加
|
||
for ip in \$cf_v4 \$cf_v6; do
|
||
[[ -n "\$ip" ]] && ufw allow from "\$ip" to any port "\$PORT" proto tcp comment 'CF' &>/dev/null
|
||
done
|
||
|
||
ufw reload
|
||
echo "\$(date): CF 白名单已更新"
|
||
CFEOF
|
||
chmod +x /usr/local/bin/update-cf-whitelist.sh
|
||
|
||
# 每月更新一次
|
||
echo "0 4 1 * * root /usr/local/bin/update-cf-whitelist.sh >> /var/log/cf-whitelist.log 2>&1" \
|
||
> /etc/cron.d/update-cf-whitelist
|
||
success "CF IP 自动更新任务已配置（每月1号凌晨4点）"
|
||
}
|
||
|
||
# ============================================================
|
||
# 8. 时间同步
|
||
# ============================================================
|
||
optimize_time() {
|
||
step "🕐 时间同步"
|
||
|
||
if systemctl is-active --quiet systemd-timesyncd 2>/dev/null; then
|
||
timedatectl set-ntp true 2>/dev/null || true
|
||
success "systemd-timesyncd 已运行"
|
||
add_result "✅ 时间同步: 正常"
|
||
elif command -v ntpd &>/dev/null; then
|
||
success "ntpd 已运行"
|
||
add_result "✅ 时间同步: ntpd"
|
||
else
|
||
apt-get install -y -qq systemd-timesyncd 2>/dev/null
|
||
timedatectl set-ntp true 2>/dev/null || true
|
||
success "systemd-timesyncd 已安装并启用"
|
||
add_result "✅ 时间同步: 已安装"
|
||
fi
|
||
|
||
info "当前时间: $(date '+%Y-%m-%d %H:%M:%S %Z')"
|
||
}
|
||
|
||
# ============================================================
|
||
# 9. 最终报告
|
||
# ============================================================
|
||
print_report() {
|
||
step "📋 优化报告"
|
||
|
||
echo ""
|
||
for r in "${RESULTS[@]}"; do
|
||
echo -e " $r"
|
||
done
|
||
|
||
echo ""
|
||
echo -e " ${BOLD}当前服务状态:${NC}"
|
||
for svc in nginx sing-box xray; do
|
||
if systemctl list-unit-files "${svc}.service" &>/dev/null 2>&1 | grep -q "$svc"; then
|
||
local status
|
||
if systemctl is-active --quiet "$svc" 2>/dev/null; then
|
||
echo -e " ${GREEN}✔${NC} ${svc} 运行中"
|
||
else
|
||
echo -e " ${RED}✘${NC} ${svc} 未运行"
|
||
fi
|
||
fi
|
||
done
|
||
|
||
echo ""
|
||
echo -e " ${BOLD}BBR 验证:${NC}"
|
||
echo -e " 拥塞算法: ${GREEN}$(sysctl -n net.ipv4.tcp_congestion_control 2>/dev/null)${NC}"
|
||
echo -e " 队列算法: ${GREEN}$(sysctl -n net.core.default_qdisc 2>/dev/null)${NC}"
|
||
|
||
echo ""
|
||
echo -e " ${BOLD}文件描述符:${NC}"
|
||
echo -e " 当前 session: ${GREEN}$(ulimit -n)${NC}"
|
||
|
||
if [[ "$ENABLE_CF_WHITELIST" == "y" ]]; then
|
||
echo ""
|
||
echo -e " ${BOLD}防火墙状态:${NC}"
|
||
ufw status | grep -E "Status|${NGINX_PORT}" | sed 's/^/ /'
|
||
fi
|
||
|
||
echo ""
|
||
echo -e " ${CYAN}备份文件位置: /etc/nginx/sites-available/*.bak.*${NC}"
|
||
echo -e " ${CYAN}CF 白名单更新: /usr/local/bin/update-cf-whitelist.sh${NC}"
|
||
echo -e " ${CYAN}手动更新 CF IP: bash /usr/local/bin/update-cf-whitelist.sh${NC}"
|
||
echo ""
|
||
warning "建议执行: reboot 使所有内核参数完全生效"
|
||
echo ""
|
||
}
|
||
|
||
# ============================================================
|
||
# 主流程
|
||
# ============================================================
|
||
main() {
|
||
check_root
|
||
print_banner
|
||
check_debian
|
||
detect_existing_config
|
||
collect_params
|
||
optimize_bbr
|
||
optimize_sysctl
|
||
optimize_nofile
|
||
optimize_nginx
|
||
optimize_proxy_service
|
||
setup_cf_whitelist
|
||
optimize_time
|
||
print_report
|
||
}
|
||
|
||
main
|