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                                    <h1 class="mg-bt35">网站安全端口关键要点和推荐方案</h1>
                                    <span>时间：2023-10-28</span>
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                                                                        <p id="" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: PingFang-SC-Regular; list-style: none; margin-top: 0px; margin-bottom: 0px; scrollbar-width: none; font-size: 15px; line-height: 1.7; color: rgb(6, 7, 31); background-color: rgb(253, 253, 254);">网站安全端口的选择需综合考虑安全性、服务类型及实际需求，以下是关键要点和推荐方案：</p><h3 style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Semibold; list-style: none; margin: 14px 0px 8px; scrollbar-width: none; color: rgb(5, 7, 59); font-size: 20px; border: none; line-height: 1.7; background-color: rgb(253, 253, 254);"><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none;">一、常见安全端口推荐</span></h3><ol style="box-sizing: border-box; padding: 0px 0px 0px 30px; -webkit-font-smoothing: antialiased; font-family: PingFang-SC-Regular; list-style-position: outside; list-style-image: none; margin-top: 14px; margin-bottom: 1em; scrollbar-width: none; font-size: 15px; line-height: 1.7; color: rgb(6, 7, 31); background-color: rgb(253, 253, 254);" class=" list-paddingleft-2"><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">HTTPS 默认端口（443）</span><ul style="list-style-type: disc;" class=" list-paddingleft-2"><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">用途</span>：加密的HTTP流量（SSL/TLS）。</li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">安全性</span>：最高优先级，所有公开网站必须使用。</li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">配置</span>：需申请SSL证书（如Let&#39;s Encrypt、DigiCert），并配置Web服务器（Nginx/Apache）强制HTTPS。</li></ul></li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">SSH 安全端口（2222或自定义）</span><ul style="list-style-type: disc;" class=" list-paddingleft-2"><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">用途</span>：远程服务器管理。</li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">安全性</span>：<ul style="list-style-type: disc;" class=" list-paddingleft-2"><li style="">避免使用默认端口22（易被暴力破解）。</li><li style="">推荐改为2222、2200等非标准端口，并配合Fail2Ban限制登录尝试。</li></ul></li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">额外措施</span>：禁用密码登录，改用SSH密钥认证。</li></ul></li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">数据库安全端口</span><ul style="list-style-type: disc;" class=" list-paddingleft-2"><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">MySQL/MariaDB</span>：默认3306 → 改为3307或更高，仅允许内网访问。</li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">PostgreSQL</span>：默认5432 → 修改为5433，配置<code class=" inline" style="box-sizing: border-box; padding: 1px 4px; -webkit-font-smoothing: antialiased; font-family: SFMono-Regular, Consolas, &quot;Liberation Mono&quot;, Menlo, Courier, monospace; list-style: none; margin: 0px 2px; scrollbar-width: none; font-size: 12.75px; tab-size: 4; background-color: rgba(27, 31, 35, 0.05); border-radius: 3px;">pg_hba.conf</code>限制IP。</li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">MongoDB</span>：默认27017 → 启用认证并绑定到127.0.0.1。</li></ul></li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">邮件服务安全端口</span><ul style="list-style-type: disc;" class=" list-paddingleft-2"><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">SMTPS</span>：465（加密）或587（STARTTLS）。</li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">IMAP/POP3</span>：993（IMAPS）、995（POP3S）。</li></ul></li></ol><h3 style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Semibold; list-style: none; margin: 14px 0px 8px; scrollbar-width: none; color: rgb(5, 7, 59); font-size: 20px; border: none; line-height: 1.7; background-color: rgb(253, 253, 254);"><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none;">二、高风险端口（需避免或严格防护）</span></h3><p class="table-scroll__XurfUklW table-scroll" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: PingFang-SC-Regular; list-style: none; margin-top: 20px; margin-bottom: 0px; overflow-x: auto; width: 742px; font-size: 15px; line-height: 1.7; color: rgb(6, 7, 31); background-color: rgb(253, 253, 254); scrollbar-width: thin !important;"></p><table class="table-container__OxEWNITQ" style="padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; border-collapse: separate; max-width: max-content; width: max-content; border-spacing: 0px; font-size: 15px; line-height: 1.75;"><thead style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none;"><tr style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none;" class="firstRow"><th style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Medium; list-style: none; margin: 0px; scrollbar-width: none; color: rgb(0, 24, 70); font-weight: 500; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; border-left-color: rgba(231, 229, 238, 0.7); border-top-left-radius: 10px; background: rgba(207, 222, 254, 0.2) !important; text-align: left !important; vertical-align: top !important;">端口</th><th style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Medium; list-style: none; margin: 0px; scrollbar-width: none; color: rgb(0, 24, 70); font-weight: 500; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; background: rgba(207, 222, 254, 0.2) !important; text-align: left !important; vertical-align: top !important;">服务</th><th style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Medium; list-style: none; margin: 0px; scrollbar-width: none; color: rgb(0, 24, 70); font-weight: 500; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; background: rgba(207, 222, 254, 0.2) !important; text-align: left !important; vertical-align: top !important;">风险原因</th><th style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Medium; list-style: none; margin: 0px; scrollbar-width: none; color: rgb(0, 24, 70); font-weight: 500; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; border-top-right-radius: 10px; background: rgba(207, 222, 254, 0.2) !important; text-align: left !important; vertical-align: top !important;">防护建议</th></tr></thead><tbody style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none;"><tr style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; background-color: rgb(253, 253, 254);"><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); border-left-color: rgba(231, 229, 238, 0.7); vertical-align: top !important;">21</td><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); vertical-align: top !important;">FTP</td><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); vertical-align: top !important;">明文传输密码</td><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); vertical-align: top !important;">改用SFTP（端口22）或FTPS</td></tr><tr style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; background-color: rgb(253, 253, 254);"><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); border-left-color: rgba(231, 229, 238, 0.7); vertical-align: top !important;">23</td><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); vertical-align: top !important;">Telnet</td><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); vertical-align: top !important;">明文传输，易被嗅探</td><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); vertical-align: top !important;">使用SSH替代</td></tr><tr style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; background-color: rgb(253, 253, 254);"><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); border-left-color: rgba(231, 229, 238, 0.7); vertical-align: top !important;">80</td><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); vertical-align: top !important;">HTTP</td><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); vertical-align: top !important;">无加密，数据易截获</td><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); vertical-align: top !important;">强制跳转至HTTPS（443）</td></tr><tr style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; background-color: rgb(253, 253, 254);"><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); border-left-color: rgba(231, 229, 238, 0.7); vertical-align: top !important;">135-139</td><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); vertical-align: top !important;">Windows SMB</td><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); vertical-align: top !important;">历史漏洞多（如WannaCry）</td><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); vertical-align: top !important;">禁用或限制内网访问</td></tr><tr style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; background-color: rgb(253, 253, 254);"><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); border-bottom-left-radius: 10px; vertical-align: top !important;">3389</td><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); border-bottom-color: rgba(231, 229, 238, 0.7); vertical-align: top !important;">RDP</td><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); border-bottom-color: rgba(231, 229, 238, 0.7); vertical-align: top !important;">远程桌面，易受暴力破解</td><td style="box-sizing: border-box; padding: 10px 20px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Regular; list-style: none; margin: 0px; scrollbar-width: none; border-right-color: rgba(231, 229, 238, 0.7); border-top-color: rgba(231, 229, 238, 0.7); letter-spacing: 0px; max-width: 300px; color: rgb(18, 6, 73); border-bottom-color: rgba(231, 229, 238, 0.7); border-bottom-right-radius: 10px; vertical-align: top !important;">改用VPN+RDP或更换端口</td></tr></tbody></table><p></p><h3 style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Semibold; list-style: none; margin: 20px 0px 8px; scrollbar-width: none; color: rgb(5, 7, 59); font-size: 20px; border: none; line-height: 1.7; background-color: rgb(253, 253, 254);"><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none;">三、安全配置要点</span></h3><ol style="box-sizing: border-box; padding: 0px 0px 0px 30px; -webkit-font-smoothing: antialiased; font-family: PingFang-SC-Regular; list-style-position: outside; list-style-image: none; margin-top: 14px; margin-bottom: 1em; scrollbar-width: none; font-size: 15px; line-height: 1.7; color: rgb(6, 7, 31); background-color: rgb(253, 253, 254);" class=" list-paddingleft-2"><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">防火墙规则</span>：<ul style="list-style-type: disc;" class=" list-paddingleft-2"><li style="">仅开放必要端口（如443、2222）。</li><li style="">使用<code class=" inline" style="box-sizing: border-box; padding: 1px 4px; -webkit-font-smoothing: antialiased; font-family: SFMono-Regular, Consolas, &quot;Liberation Mono&quot;, Menlo, Courier, monospace; list-style: none; margin: 0px 2px; scrollbar-width: none; font-size: 12.75px; tab-size: 4; background-color: rgba(27, 31, 35, 0.05); border-radius: 3px;">iptables</code>/<code class=" inline" style="box-sizing: border-box; padding: 1px 4px; -webkit-font-smoothing: antialiased; font-family: SFMono-Regular, Consolas, &quot;Liberation Mono&quot;, Menlo, Courier, monospace; list-style: none; margin: 0px 2px; scrollbar-width: none; font-size: 12.75px; tab-size: 4; background-color: rgba(27, 31, 35, 0.05); border-radius: 3px;">ufw</code>（Linux）或Windows防火墙限制来源IP。</li><li style="">示例（Linux）：<pre style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: SFMono-Regular, Consolas, &quot;Liberation Mono&quot;, Menlo, Courier, monospace; list-style: none; margin-top: 0px; margin-bottom: 0px; scrollbar-width: none; font-size: 1em; overflow: auto;"><code class="language-bash " data-theme="light" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: SFMono-Regular, Consolas, &quot;Liberation Mono&quot;, Menlo, Courier, monospace; list-style: none; margin: 0px; scrollbar-width: none; font-size: 1em; --header-bg-color: #f5f5f5; --code-block-border-color: #e5e7f4; --header-text-color: #06071f; --header-icon-hover-color: rgba(6,7,31,.06); --body-bg-color: #fff; --line-text-color: rgba(37,41,46,.6); --left-offset: 1; --scroll-bar-color: rgba(6,7,31,.1); --scroll-bar-hover-color: rgba(6,7,31,.2); --code-primary-color: #24292e; --code-keyword-color: #d73a49; --code-entity-color: #6f42c1; --code-constant-color: #005cc5; --code-string-color: #032f62; --code-variable-color: #e36209; --code-comment-color: #6a737d; --code-entity-tag-color: #22863a; --code-modifier-import-color: #24292e; --code-markup-heading-color: #005cc5; --code-markup-list-color: #735c0f; --code-markup-italic-bold-color: #24292e; --code-markup-inserted-color: #22863a; --code-markup-deleted-color: #b31d28; --body-bg-color-new: #f5f5f5; --scroll-bar-color-new: #d9d9d9; --scroll-bar-hover-color-new: #ccc; tab-size: 4;"><div class="code-header" style="box-sizing: border-box; padding: 0px 16px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; align-items: center; background: var(--header-bg-color); border-top-color: ; border-top-style: ; border-top-width: ; border-right-color: ; border-right-style: ; border-right-width: ; border-left-color: ; border-left-style: ; border-left-width: ; border-image-source: ; border-image-slice: ; border-image-width: ; border-image-outset: ; border-image-repeat: ; border-bottom: 0 var(--code-block-border-color); border-radius: 7px 7px 0px 0px; display: flex; height: 34px;"><span class="code-lang" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: &quot;PingFang SC&quot;; list-style: none; margin: 0px; scrollbar-width: none; color: var(--header-text-color); flex: 1 0 auto; font-size: 14px; line-height: normal; text-align: justify;">bash</span><span class="code-theme" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px 10px 0px 0px; scrollbar-width: none; align-items: center; border-radius: 4px; cursor: pointer; display: flex; user-select: none;"><svg xmlns="http://www.w3.org/2000/svg" width="22" height="22" fill="none"><path d="M6.397 13.526c-.17-.036-.315.137-.228.288a5.66 5.66 0 106.27-8.319c-.168-.042-.295.145-.213.298a5.335 5.335 0 01-5.83 7.733z" stroke="#06071F" stroke-opacity="0.6" stroke-width="1.24"></path><path d="M7.146 5.103a.124.124 0 00-.12.114 2.254 2.254 0 01-2.022 2.028.119.119 0 00-.11.12c0 .063.05.115.112.12A2.25 2.25 0 017.03 9.511a.119.119 0 00.12.109h.011a.121.121 0 00.12-.112c.1-1.07.951-1.922 2.02-2.026a.119.119 0 00.11-.12.121.121 0 00-.11-.12 2.246 2.246 0 01-2.02-2.028.121.121 0 00-.12-.111h-.014z" fill="#06071F" fill-opacity="0.6"></path></svg></span><span class="code-copy" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; align-items: center; border-radius: 4px; cursor: pointer; display: flex; user-select: none;"><svg xmlns="http://www.w3.org/2000/svg" width="23" height="22" fill="none"><path clip-rule="evenodd" d="M5.9 8.6c0-.49.398-.888.889-.888h7.11c.492 0 .89.398.89.889v7.11c0 .492-.398.89-.89.89H6.79a.889.889 0 01-.89-.89v-7.11z" stroke="#06071F" stroke-opacity="0.6" stroke-width="1.244"></path><path d="M9.1 5.4h6.222c.982 0 1.778.795 1.778 1.777V13.4" stroke="#06071F" stroke-opacity="0.6" stroke-width="1.244" stroke-linecap="round" stroke-linejoin="round"></path></svg></span></div><div class="code-wrapper-outter" style="box-sizing: border-box; padding: 0px 0px 3px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; border-top: 0px; border-right-color: ; border-right-style: ; border-right-width: ; border-bottom-color: ; border-bottom-style: ; border-bottom-width: ; border-left-color: ; border-left-style: ; border-left-width: ; border-image-source: ; border-image-slice: ; border-image-width: ; border-image-outset: ; border-image-repeat: ; border-radius: 0px 0px 8px 8px; background: var(--body-bg-color);"><div class="code-wrapper" style="box-sizing: border-box; padding: 14px 14px 14px 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: auto; background: var(--body-bg-color); border-top: 0px; border-bottom-left-radius: 8px; border-bottom-right-radius: 8px; overflow: auto; height: 116px;"><table class="hljs hljs-ln" style="padding: 0px; -webkit-font-smoothing: antialiased; font-family: Consolas, Monaco, monospace; list-style: none; margin: 0px; scrollbar-width: none; background: var(--body-bg-color); color: var(--code-primary-color); font-size: 14px; line-height: 22px;"><tbody style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px;"><tr style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px;" class="firstRow"><td class="hljs-ln-line hljs-ln-numbers" data-line-number="1" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px; color: var(--line-text-color); letter-spacing: 0px; overflow: hidden; text-align: right; user-select: none; vertical-align: top; white-space-collapse: collapse; width: 0px;"><div class="hljs-ln-n" data-line-number="1" style="box-sizing: border-box; padding: 0px 18px 0px 16px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px; background: var(--body-bg-color); color: var(--line-text-color); left: var(--left-offset); position: absolute; width: 58px;"></div></td><td class="hljs-ln-line hljs-ln-code" data-line-number="1" style="box-sizing: border-box; padding: 0px 0px 0px 58px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px;">ufw allow 443/tcp<span class="hljs-comment" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; color: var(--code-comment-color); line-height: 22px;"># 允许HTTPS</span></td></tr><tr style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px;"><td class="hljs-ln-line hljs-ln-numbers" data-line-number="2" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px; color: var(--line-text-color); letter-spacing: 0px; overflow: hidden; text-align: right; user-select: none; vertical-align: top; white-space-collapse: collapse; width: 0px;"><div class="hljs-ln-n" data-line-number="2" style="box-sizing: border-box; padding: 0px 18px 0px 16px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px; background: var(--body-bg-color); color: var(--line-text-color); left: var(--left-offset); position: absolute; width: 58px;"></div></td><td class="hljs-ln-line hljs-ln-code" data-line-number="2" style="box-sizing: border-box; padding: 0px 0px 0px 58px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px;">ufw allow 2222/tcp<span class="hljs-comment" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; color: var(--code-comment-color); line-height: 22px;"># 允许自定义SSH</span></td></tr><tr style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px;"><td class="hljs-ln-line hljs-ln-numbers" data-line-number="3" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px; color: var(--line-text-color); letter-spacing: 0px; overflow: hidden; text-align: right; user-select: none; vertical-align: top; white-space-collapse: collapse; width: 0px;"><div class="hljs-ln-n" data-line-number="3" style="box-sizing: border-box; padding: 0px 18px 0px 16px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px; background: var(--body-bg-color); color: var(--line-text-color); left: var(--left-offset); position: absolute; width: 58px;"></div></td><td class="hljs-ln-line hljs-ln-code" data-line-number="3" style="box-sizing: border-box; padding: 0px 0px 0px 58px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px;">ufw deny 22/tcp<span class="hljs-comment" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; color: var(--code-comment-color); line-height: 22px;"># 禁止默认SSH</span></td></tr><tr style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px;"><td class="hljs-ln-line hljs-ln-numbers" data-line-number="4" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px; color: var(--line-text-color); letter-spacing: 0px; overflow: hidden; text-align: right; user-select: none; vertical-align: top; white-space-collapse: collapse; width: 0px;"><div class="hljs-ln-n" data-line-number="4" style="box-sizing: border-box; padding: 0px 18px 0px 16px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px; background: var(--body-bg-color); color: var(--line-text-color); left: var(--left-offset); position: absolute; width: 58px;"></div></td><td class="hljs-ln-line hljs-ln-code" data-line-number="4" style="box-sizing: border-box; padding: 0px 0px 0px 58px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px;">ufw<span class="hljs-built_in" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; color: var(--code-variable-color); line-height: 22px;">enable</span></td></tr></tbody></table></div></div></code></pre></li></ul></li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">端口扫描防护</span>：<ul style="list-style-type: disc;" class=" list-paddingleft-2"><li style="">定期使用<code class=" inline" style="box-sizing: border-box; padding: 1px 4px; -webkit-font-smoothing: antialiased; font-family: SFMono-Regular, Consolas, &quot;Liberation Mono&quot;, Menlo, Courier, monospace; list-style: none; margin: 0px 2px; scrollbar-width: none; font-size: 12.75px; tab-size: 4; background-color: rgba(27, 31, 35, 0.05); border-radius: 3px;">nmap</code>扫描自身端口，检查意外开放的服务。</li><li style="">示例扫描命令：<pre style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: SFMono-Regular, Consolas, &quot;Liberation Mono&quot;, Menlo, Courier, monospace; list-style: none; margin-top: 0px; margin-bottom: 0px; scrollbar-width: none; font-size: 1em; overflow: auto;"><code class="language-bash " data-theme="light" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: SFMono-Regular, Consolas, &quot;Liberation Mono&quot;, Menlo, Courier, monospace; list-style: none; margin: 0px; scrollbar-width: none; font-size: 1em; --header-bg-color: #f5f5f5; --code-block-border-color: #e5e7f4; --header-text-color: #06071f; --header-icon-hover-color: rgba(6,7,31,.06); --body-bg-color: #fff; --line-text-color: rgba(37,41,46,.6); --left-offset: 1; --scroll-bar-color: rgba(6,7,31,.1); --scroll-bar-hover-color: rgba(6,7,31,.2); --code-primary-color: #24292e; --code-keyword-color: #d73a49; --code-entity-color: #6f42c1; --code-constant-color: #005cc5; --code-string-color: #032f62; --code-variable-color: #e36209; --code-comment-color: #6a737d; --code-entity-tag-color: #22863a; --code-modifier-import-color: #24292e; --code-markup-heading-color: #005cc5; --code-markup-list-color: #735c0f; --code-markup-italic-bold-color: #24292e; --code-markup-inserted-color: #22863a; --code-markup-deleted-color: #b31d28; --body-bg-color-new: #f5f5f5; --scroll-bar-color-new: #d9d9d9; --scroll-bar-hover-color-new: #ccc; tab-size: 4;"><div class="code-header" style="box-sizing: border-box; padding: 0px 16px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; align-items: center; background: var(--header-bg-color); border-top-color: ; border-top-style: ; border-top-width: ; border-right-color: ; border-right-style: ; border-right-width: ; border-left-color: ; border-left-style: ; border-left-width: ; border-image-source: ; border-image-slice: ; border-image-width: ; border-image-outset: ; border-image-repeat: ; border-bottom: 0 var(--code-block-border-color); border-radius: 7px 7px 0px 0px; display: flex; height: 34px;"><span class="code-lang" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: &quot;PingFang SC&quot;; list-style: none; margin: 0px; scrollbar-width: none; color: var(--header-text-color); flex: 1 0 auto; font-size: 14px; line-height: normal; text-align: justify;">bash</span><span class="code-theme" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px 10px 0px 0px; scrollbar-width: none; align-items: center; border-radius: 4px; cursor: pointer; display: flex; user-select: none;"><svg xmlns="http://www.w3.org/2000/svg" width="22" height="22" fill="none"><path d="M6.397 13.526c-.17-.036-.315.137-.228.288a5.66 5.66 0 106.27-8.319c-.168-.042-.295.145-.213.298a5.335 5.335 0 01-5.83 7.733z" stroke="#06071F" stroke-opacity="0.6" stroke-width="1.24"></path><path d="M7.146 5.103a.124.124 0 00-.12.114 2.254 2.254 0 01-2.022 2.028.119.119 0 00-.11.12c0 .063.05.115.112.12A2.25 2.25 0 017.03 9.511a.119.119 0 00.12.109h.011a.121.121 0 00.12-.112c.1-1.07.951-1.922 2.02-2.026a.119.119 0 00.11-.12.121.121 0 00-.11-.12 2.246 2.246 0 01-2.02-2.028.121.121 0 00-.12-.111h-.014z" fill="#06071F" fill-opacity="0.6"></path></svg></span><span class="code-copy" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; align-items: center; border-radius: 4px; cursor: pointer; display: flex; user-select: none;"><svg xmlns="http://www.w3.org/2000/svg" width="23" height="22" fill="none"><path clip-rule="evenodd" d="M5.9 8.6c0-.49.398-.888.889-.888h7.11c.492 0 .89.398.89.889v7.11c0 .492-.398.89-.89.89H6.79a.889.889 0 01-.89-.89v-7.11z" stroke="#06071F" stroke-opacity="0.6" stroke-width="1.244"></path><path d="M9.1 5.4h6.222c.982 0 1.778.795 1.778 1.777V13.4" stroke="#06071F" stroke-opacity="0.6" stroke-width="1.244" stroke-linecap="round" stroke-linejoin="round"></path></svg></span></div><div class="code-wrapper-outter" style="box-sizing: border-box; padding: 0px 0px 3px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; border-top: 0px; border-right-color: ; border-right-style: ; border-right-width: ; border-bottom-color: ; border-bottom-style: ; border-bottom-width: ; border-left-color: ; border-left-style: ; border-left-width: ; border-image-source: ; border-image-slice: ; border-image-width: ; border-image-outset: ; border-image-repeat: ; border-radius: 0px 0px 8px 8px; background: var(--body-bg-color);"><div class="code-wrapper" style="box-sizing: border-box; padding: 14px 14px 14px 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: auto; background: var(--body-bg-color); border-top: 0px; border-bottom-left-radius: 8px; border-bottom-right-radius: 8px; overflow: auto; height: 50px;"><table class="hljs hljs-ln" style="padding: 0px; -webkit-font-smoothing: antialiased; font-family: Consolas, Monaco, monospace; list-style: none; margin: 0px; scrollbar-width: none; background: var(--body-bg-color); color: var(--code-primary-color); font-size: 14px; line-height: 22px;"><tbody style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px;"><tr style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px;" class="firstRow"><td class="hljs-ln-line hljs-ln-numbers" data-line-number="1" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px; color: var(--line-text-color); letter-spacing: 0px; overflow: hidden; text-align: right; user-select: none; vertical-align: top; white-space-collapse: collapse; width: 0px;"><div class="hljs-ln-n" data-line-number="1" style="box-sizing: border-box; padding: 0px 18px 0px 16px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px; background: var(--body-bg-color); color: var(--line-text-color); left: var(--left-offset); position: absolute; width: 58px;"></div></td><td class="hljs-ln-line hljs-ln-code" data-line-number="1" style="box-sizing: border-box; padding: 0px 0px 0px 58px; -webkit-font-smoothing: antialiased; list-style: none; margin: 0px; scrollbar-width: none; line-height: 22px;">nmap -sS -p 1-65535 your_server_ip</td></tr></tbody></table></div></div></code></pre></li></ul></li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">服务隔离</span>：<ul style="list-style-type: disc;" class=" list-paddingleft-2"><li style="">将数据库、后台服务等部署在内网，通过跳板机访问。</li><li style="">使用VPN（如OpenVPN、WireGuard）管理内网资源。</li></ul></li></ol><h3 style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Semibold; list-style: none; margin: 14px 0px 8px; scrollbar-width: none; color: rgb(5, 7, 59); font-size: 20px; border: none; line-height: 1.7; background-color: rgb(253, 253, 254);"><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none;">四、特殊场景建议</span></h3><ul style="box-sizing: border-box; padding: 0px 0px 0px 30px; -webkit-font-smoothing: antialiased; font-family: PingFang-SC-Regular; list-style-position: outside; list-style-image: none; margin-top: 14px; margin-bottom: 1em; scrollbar-width: none; font-size: 15px; line-height: 1.7; color: rgb(6, 7, 31); background-color: rgb(253, 253, 254);" class=" list-paddingleft-2"><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">CDN/负载均衡</span>：前端使用CDN（如Cloudflare）隐藏真实服务器IP，后端通过443与CDN通信。</li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">Web应用防火墙（WAF）</span>：部署WAF（如ModSecurity）过滤恶意流量，保护端口443。</li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">容器化部署</span>：使用Docker/Kubernetes时，通过Service和Ingress管理端口暴露，避免直接开放高危端口。</li></ul><h3 style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Semibold; list-style: none; margin: 14px 0px 8px; scrollbar-width: none; color: rgb(5, 7, 59); font-size: 20px; border: none; line-height: 1.7; background-color: rgb(253, 253, 254);"><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none;">五、总结</span></h3><ul style="box-sizing: border-box; padding: 0px 0px 0px 30px; -webkit-font-smoothing: antialiased; font-family: PingFang-SC-Regular; list-style-position: outside; list-style-image: none; margin-top: 14px; margin-bottom: 1em; scrollbar-width: none; font-size: 15px; line-height: 1.7; color: rgb(6, 7, 31); background-color: rgb(253, 253, 254);" class=" list-paddingleft-2"><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">必须开放</span>：443（HTTPS）、自定义SSH端口（如2222）。</li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">按需开放</span>：数据库/邮件端口（严格限制IP）。</li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">绝对禁止</span>：21、23、3389等高危端口直接暴露公网。</li><li style=""><span style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Ubuntu, &quot;Helvetica Neue&quot;, Helvetica, Arial, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans CN&quot;, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;; list-style: none; margin: 0px; scrollbar-width: none; font-weight: 600;">动态监控</span>：结合日志分析工具（如ELK）实时监测端口异常连接。</li></ul><p id="" style="box-sizing: border-box; padding: 0px; -webkit-font-smoothing: antialiased; font-family: PingFang-SC-Regular; list-style: none; margin-top: 14px; margin-bottom: 0px; scrollbar-width: none; font-size: 15px; line-height: 1.7; color: rgb(6, 7, 31); background-color: rgb(253, 253, 254);">通过合理配置端口和加强访问控制，可显著降低网站被攻击的风险。建议定期审计端口使用情况，并跟随安全最佳实践更新配置</p>                                </div>
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