
一 |
一键部署OpenClaw 网站上线后就会被扫描,被扫到漏洞就被打。 (ECNS) -- Trial operations for the Harbin-Yichun high-speed railway began on Thursday when a train departed Harbin Station in northeast China's Heilongjiang Province at 7:40 a.m. and arrived at Yichun West Station 2 hours and 2 minutes later. The Harbin–Yichun high-speed railway is an extension of the Beijing–Harbin and Beijing–Hong Kong-Macao corridor in China's eight vertical and eight horizontal high-speed rail network. It is also the northernmost high-speed railway currently under construction in China. The 318-kilometer line starts in Harbin, passes through Suihua City, and ends in Yichun City. It is designed for speeds of up to 250 kilometers per hour. Once the railway opens, travel time between Harbin and Yichun will be cut from about seven hours to around two hours. (By Gong Weiwei)
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二 | 安全防护不是一次性工作,而是持续的基本功。 先说SQL注入。最常见的攻击方式,黑客通过表单输入拼接SQL语句。防护方法很简单:用参数化查询,干掉字符串拼接。 # PHP防SQL注入写法(PDO参数化查询) // 错误写法:直接拼接字符串 $sql = "SELECT * FROM users WHERE name='" . $_POST['name'] . "'"; // 正确写法:使用PDO预处理 $stmt = $pdo->prepare("SELECT * FROM users WHERE name = :name"); $stmt->execute([':name' => $_POST['name']]); $result = $stmt->fetchAll(); 再说CC攻击。某个IP频繁请求你的页面,把服务器资源耗尽。Nginx可以限制单IP请求频率。 # Nginx限制单IP请求频率(nginx.conf) http { limit_req_zone $binary_remote_addr zone=one:10m rate=10r/s; server { location / { limit_req zone=one burst=20 nodelay; # 每秒最多10个请求,突发允许20个 } } } # 封禁恶意User-Agent if ($http_user_agent ~* "bot|spider|crawler") { return 403; } DDoS防护个人站长很难自己搞,最好的办法是接CDN。Cloudflare免费版就能挡住大部分小规模DDoS。如果被打得很狠,就开CDN的“我被攻击了”模式,所有流量走CDN审查。

三 | 另外几个基本操作:后台目录加密码保护、数据库定期备份、程序及时更新打补丁。这些眠得快,别等被打了才想起来。
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Published on:03:22:09

