diff --git a/vps_optimize.sh b/vps_optimize.sh new file mode 100644 index 0000000..551cd7c --- /dev/null +++ b/vps_optimize.sh @@ -0,0 +1,605 @@ +#!/bin/bash +# ============================================================ +# VPS 一键优化脚本 +# 适用: Debian 12 + VLESS + WS + TLS + Cloudflare CDN +# 功能: BBR / 内核参数 / 文件描述符 / Nginx / CF IP 白名单 +# ============================================================ + +set -euo pipefail + +RED='\033[0;31m' +GREEN='\033[0;32m' +YELLOW='\033[1;33m' +BLUE='\033[0;34m' +CYAN='\033[0;36m' +BOLD='\033[1m' +NC='\033[0m' + +info() { echo -e "${CYAN}[INFO]${NC} $1"; } +success() { echo -e "${GREEN}[OK]${NC} $1"; } +warning() { echo -e "${YELLOW}[!]${NC} $1"; } +error() { echo -e "${RED}[ERR]${NC} $1"; exit 1; } +step() { echo -e "\n${BOLD}${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}\n${BOLD}${YELLOW} $1${NC}\n${BOLD}${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"; } + +# ── 记录优化结果供最终报告用 ────────────────────────────────── +RESULTS=() +add_result() { RESULTS+=("$1"); } + +# ============================================================ +# 0. 前置检查 +# ============================================================ +check_root() { + [[ $EUID -eq 0 ]] || error "请使用 root 用户运行: sudo bash vps_optimize.sh" +} + +check_debian() { + [[ -f /etc/debian_version ]] || error "此脚本仅支持 Debian / Ubuntu 系统" + info "系统: $(lsb_release -d 2>/dev/null | cut -f2)" + info "内核: $(uname -r)" +} + +print_banner() { + clear + echo -e "${CYAN}" + echo "╔══════════════════════════════════════════════════════╗" + echo "║ VPS 一键优化脚本 ║" + echo "║ VLESS + WS + TLS + Cloudflare CDN ║" + echo "╚══════════════════════════════════════════════════════╝" + echo -e "${NC}" +} + +# ============================================================ +# 1. 收集配置参数 +# ============================================================ +NGINX_PORT="" +WS_PATH="" +DOMAIN="" +ENABLE_CF_WHITELIST="y" + +detect_existing_config() { + step "🔍 检测现有配置" + + # 从 nginx 配置自动读取端口和路径 + local nginx_conf + nginx_conf=$(find /etc/nginx/sites-enabled/ -type f 2>/dev/null | xargs grep -l "proxy_pass" 2>/dev/null | head -1) + + if [[ -n "$nginx_conf" ]]; then + local detected_port detected_path detected_domain + detected_port=$(grep -E 'listen\s+[0-9]+\s+ssl' "$nginx_conf" 2>/dev/null | grep -oE '[0-9]+' | head -1) + detected_path=$(grep -E 'location\s+/' "$nginx_conf" 2>/dev/null | awk '{print $2}' | head -1) + detected_domain=$(grep 'server_name' "$nginx_conf" 2>/dev/null | awk '{print $2}' | tr -d ';' | head -1) + + [[ -n "$detected_port" ]] && NGINX_PORT="$detected_port" + [[ -n "$detected_path" ]] && WS_PATH="$detected_path" + [[ -n "$detected_domain" ]] && DOMAIN="$detected_domain" + + info "从 $nginx_conf 读取到:" + [[ -n "$NGINX_PORT" ]] && info " 端口: $NGINX_PORT" + [[ -n "$WS_PATH" ]] && info " 路径: $WS_PATH" + [[ -n "$DOMAIN" ]] && info " 域名: $DOMAIN" + else + warning "未检测到现有 nginx 配置" + fi +} + +collect_params() { + step "⚙️ 配置参数确认" + + # 端口 + if [[ -z "$NGINX_PORT" ]]; then + read -rp " 请输入 Nginx 对外监听端口 [默认 2053]: " input + NGINX_PORT="${input:-2053}" + else + read -rp " 检测到端口 ${NGINX_PORT}，直接回车确认或输入新值: " input + [[ -n "$input" ]] && NGINX_PORT="$input" + fi + + # WS 路径 + if [[ -z "$WS_PATH" ]]; then + read -rp " 请输入 WebSocket 路径 [默认 /stickrouter]: " input + WS_PATH="${input:-/stickrouter}" + else + read -rp " 检测到 WS 路径 ${WS_PATH}，直接回车确认或输入新值: " input + [[ -n "$input" ]] && WS_PATH="$input" + fi + + # 域名（CF 白名单需要） + if [[ -z "$DOMAIN" ]]; then + read -rp " 请输入域名（用于 CF 白名单，留空跳过）: " DOMAIN + else + read -rp " 检测到域名 ${DOMAIN}，直接回车确认或输入新值: " input + [[ -n "$input" ]] && DOMAIN="$input" + fi + + # 是否开启 CF IP 白名单 + read -rp " 是否开启 Cloudflare IP 白名单限制 2053 端口? (Y/n): " input + input="${input:-y}" + [[ "$input" =~ ^[Nn]$ ]] && ENABLE_CF_WHITELIST="n" || ENABLE_CF_WHITELIST="y" + + echo "" + echo -e " ${BOLD}确认配置:${NC}" + echo -e " Nginx 端口 : ${GREEN}${NGINX_PORT}${NC}" + echo -e " WS 路径 : ${GREEN}${WS_PATH}${NC}" + echo -e " 域名 : ${GREEN}${DOMAIN:-（跳过）}${NC}" + echo -e " CF 白名单 : ${GREEN}${ENABLE_CF_WHITELIST}${NC}" + echo "" + read -rp " 确认以上信息，按 Enter 继续，输入 n 重填: " confirm + [[ "$confirm" =~ ^[Nn]$ ]] && collect_params +} + +# ============================================================ +# 2. BBR 拥塞控制 +# ============================================================ +optimize_bbr() { + step "🚀 BBR 拥塞控制" + + local current + current=$(sysctl -n net.ipv4.tcp_congestion_control 2>/dev/null) + info "当前拥塞算法: $current" + + # 检查内核是否支持 BBR + if ! modprobe tcp_bbr 2>/dev/null && ! lsmod | grep -q bbr; then + warning "内核不支持 BBR，跳过（建议升级内核）" + add_result "❌ BBR: 内核不支持" + return + fi + + # 写入 sysctl（先去重再追加） + local sysctl_file="/etc/sysctl.d/99-bbr.conf" + cat > "$sysctl_file" << 'EOF' +# BBR 拥塞控制 +net.core.default_qdisc = fq +net.ipv4.tcp_congestion_control = bbr +EOF + + sysctl -p "$sysctl_file" &>/dev/null + + local after + after=$(sysctl -n net.ipv4.tcp_congestion_control 2>/dev/null) + if [[ "$after" == "bbr" ]]; then + success "BBR 已启用" + add_result "✅ BBR: 已启用" + else + warning "BBR 写入成功但未立即生效，重启后生效" + add_result "⚠️ BBR: 重启后生效" + fi +} + +# ============================================================ +# 3. 内核网络参数 +# ============================================================ +optimize_sysctl() { + step "🔧 内核网络参数调优" + + local sysctl_file="/etc/sysctl.d/99-vps-optimize.conf" + cat > "$sysctl_file" << 'EOF' +# ── 接收/发送缓冲区（WebSocket 长连接）──────────────────────── +net.core.rmem_max = 67108864 +net.core.wmem_max = 67108864 +net.ipv4.tcp_rmem = 4096 87380 67108864 +net.ipv4.tcp_wmem = 4096 65536 67108864 +net.core.netdev_max_backlog = 250000 + +# ── 连接队列（并发连接）──────────────────────────────────────── +net.core.somaxconn = 32768 +net.ipv4.tcp_max_syn_backlog = 16384 + +# ── TIME_WAIT 优化 ───────────────────────────────────────────── +net.ipv4.tcp_tw_reuse = 1 +net.ipv4.tcp_fin_timeout = 15 +net.ipv4.tcp_max_tw_buckets = 5000 + +# ── WebSocket 保活 ───────────────────────────────────────────── +net.ipv4.tcp_keepalive_time = 300 +net.ipv4.tcp_keepalive_intvl = 30 +net.ipv4.tcp_keepalive_probes = 3 + +# ── 其他 ─────────────────────────────────────────────────────── +net.ipv4.tcp_fastopen = 3 +net.ipv4.tcp_mtu_probing = 1 +net.ipv4.ip_local_port_range = 10000 65535 +EOF + + if sysctl -p "$sysctl_file" &>/dev/null; then + success "内核参数写入: $sysctl_file" + add_result "✅ 内核参数: 已优化" + else + warning "部分内核参数应用失败，请检查 $sysctl_file" + add_result "⚠️ 内核参数: 部分失败" + fi +} + +# ============================================================ +# 4. 文件描述符 +# ============================================================ +optimize_nofile() { + step "📁 文件描述符限制" + + local limits_file="/etc/security/limits.d/99-nofile.conf" + cat > "$limits_file" << 'EOF' +* soft nofile 65535 +* hard nofile 65535 +root soft nofile 65535 +root hard nofile 65535 +EOF + success "limits.conf 写入: $limits_file" + + # systemd 服务单独设置 + for svc in sing-box nginx xray; do + if systemctl list-unit-files "${svc}.service" &>/dev/null 2>&1 | grep -q "$svc"; then + local override_dir="/etc/systemd/system/${svc}.service.d" + mkdir -p "$override_dir" + cat > "${override_dir}/limits.conf" << 'EOF' +[Service] +LimitNOFILE=65535 +EOF + success "systemd override 写入: ${svc}.service" + fi + done + + systemctl daemon-reload 2>/dev/null || true + + # 立即对当前 session 生效 + ulimit -n 65535 2>/dev/null || true + + add_result "✅ 文件描述符: 已设置为 65535" +} + +# ============================================================ +# 5. Nginx 优化 +# ============================================================ +optimize_nginx() { + step "🌐 Nginx 配置优化" + + if ! command -v nginx &>/dev/null; then + warning "未检测到 nginx，跳过" + add_result "❌ Nginx: 未安装" + return + fi + + # 找到 sing-box/vless 相关的 nginx 配置 + local nginx_conf + nginx_conf=$(find /etc/nginx/sites-available/ -type f 2>/dev/null | \ + xargs grep -l "proxy_pass" 2>/dev/null | head -1) + + if [[ -z "$nginx_conf" ]]; then + warning "未找到反代配置文件，跳过 Nginx 优化" + add_result "⚠️ Nginx: 未找到配置" + return + fi + + info "目标配置文件: $nginx_conf" + + # 备份原配置 + local backup="${nginx_conf}.bak.$(date +%Y%m%d%H%M%S)" + cp "$nginx_conf" "$backup" + info "已备份至: $backup" + + # ── 5a. 全局 nginx.conf 优化 ────────────────────────────── + local nginx_main="/etc/nginx/nginx.conf" + # worker_processes 改为 auto + sed -i 's/worker_processes\s\+[0-9]\+/worker_processes auto/' "$nginx_main" 2>/dev/null || true + # worker_connections 提升（在 events 块内） + sed -i '/events\s*{/,/}/{s/worker_connections\s\+[0-9]\+/worker_connections 65535/}' "$nginx_main" 2>/dev/null || true + + # 写入 nginx 全局调优 snippet（不覆盖主配置） + cat > /etc/nginx/conf.d/99-optimize.conf << 'EOF' +# ── TCP 优化 ─────────────────────────────────────────────────── +tcp_nopush on; +tcp_nodelay on; +sendfile on; + +# ── 连接超时 ─────────────────────────────────────────────────── +keepalive_timeout 300s; +keepalive_requests 10000; +client_header_timeout 30s; +client_body_timeout 30s; +send_timeout 30s; + +# ── 缓冲 ─────────────────────────────────────────────────────── +client_body_buffer_size 128k; +client_max_body_size 10m; +proxy_buffer_size 4k; +proxy_buffers 8 4k; +EOF + + # ── 5b. 站点配置优化（替换/追加关键指令）────────────────── + # 用 python3 做精确修改，避免 sed 处理多行的麻烦 + python3 - "$nginx_conf" "$NGINX_PORT" "$WS_PATH" << 'PYEOF' +import sys, re + +conf_path = sys.argv[1] +port = sys.argv[2] +ws_path = sys.argv[3] + +with open(conf_path) as f: + content = f.read() + +# ── SSL 优化 ─────────────────────────────────────────────────── +# 替换 ssl_protocols +content = re.sub(r'ssl_protocols\s+[^;]+;', + 'ssl_protocols TLSv1.2 TLSv1.3;', content) +# 替换 ssl_ciphers +content = re.sub(r'ssl_ciphers\s+[^;]+;', + 'ssl_ciphers TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256;', + content) +# ssl_prefer_server_ciphers off（TLS1.3 客户端优先） +content = re.sub(r'ssl_prefer_server_ciphers\s+\w+;', + 'ssl_prefer_server_ciphers off;', content) + +# session 复用 +for old, new in [ + (r'ssl_session_cache\s+[^;]+;', 'ssl_session_cache shared:SSL:20m;'), + (r'ssl_session_timeout\s+[^;]+;', 'ssl_session_timeout 1d;'), +]: + if re.search(old, content): + content = re.sub(old, new, content) + +# 追加 ssl_session_tickets 和 ssl_buffer_size（如果没有） +ssl_block_end = content.rfind('ssl_session') +if 'ssl_session_tickets' not in content: + content = re.sub(r'(ssl_session_timeout\s+[^;]+;)', + r'\1\n ssl_session_tickets off;\n ssl_buffer_size 4k;', content) + +# ── WebSocket location 块优化 ────────────────────────────────── +def patch_location(m): + block = m.group(0) + patches = { + r'proxy_read_timeout\s+[^;]+;': 'proxy_read_timeout 600s;', + r'proxy_send_timeout\s+[^;]+;': 'proxy_send_timeout 600s;', + r'proxy_connect_timeout\s+[^;]+;': 'proxy_connect_timeout 10s;', + } + for pattern, replacement in patches.items(): + if re.search(pattern, block): + block = re.sub(pattern, replacement, block) + else: + # 在 proxy_buffering off; 后面追加 + block = block.replace('proxy_buffering off;', + f'proxy_buffering off;\n {replacement}') + + # 确保有 tcp_nodelay + if 'tcp_nodelay' not in block: + block = block.replace('proxy_buffering off;', + 'proxy_buffering off;\n tcp_nodelay on;') + return block + +content = re.sub( + r'location\s+' + re.escape(ws_path) + r'\s*\{[^}]+\}', + patch_location, + content, + flags=re.DOTALL +) + +with open(conf_path, 'w') as f: + f.write(content) + +print(" Nginx 站点配置已更新") +PYEOF + + # 测试配置 + if nginx -t 2>/dev/null; then + systemctl reload nginx + success "Nginx 优化完成并重载" + add_result "✅ Nginx: 已优化并重载" + else + warning "Nginx 配置测试失败，正在回滚..." + cp "$backup" "$nginx_conf" + systemctl reload nginx 2>/dev/null || true + add_result "❌ Nginx: 优化失败已回滚" + fi +} + +# ============================================================ +# 6. sing-box / xray 服务优化 +# ============================================================ +optimize_proxy_service() { + step "⚡ 代理服务优化" + + local found=0 + for svc in sing-box xray; do + if systemctl is-active --quiet "$svc" 2>/dev/null; then + info "检测到运行中的服务: $svc" + systemctl restart "$svc" + success "$svc 已重启（文件描述符 override 生效）" + add_result "✅ ${svc}: 已重启" + found=1 + fi + done + + [[ $found -eq 0 ]] && warning "未检测到运行中的 sing-box 或 xray 服务" +} + +# ============================================================ +# 7. 防火墙 + Cloudflare IP 白名单 +# ============================================================ +setup_cf_whitelist() { + step "🛡️ Cloudflare IP 白名单" + + if [[ "$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