80 lines
2.7 KiB
HTML
80 lines
2.7 KiB
HTML
<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="utf-8">
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<title>502 错误 - phpstudy</title>
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<meta content="" name="keywords">
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<meta content="" name="description">
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<meta content="webkit" name="renderer">
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<meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible">
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<meta content="width=device-width, initial-scale=1, maximum-scale=1" name="viewport">
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<meta content="black" name="apple-mobile-web-app-status-bar-style">
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<meta content="yes" name="apple-mobile-web-app-capable">
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<meta content="telephone=no" name="format-detection">
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<meta CONTENT="no-cache" HTTP-EQUIV="pragma">
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<meta CONTENT="no-store, must-revalidate" HTTP-EQUIV="Cache-Control">
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<meta CONTENT="Wed, 26 Feb 1997 08:21:57 GMT" HTTP-EQUIV="expires">
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<meta CONTENT="0" HTTP-EQUIV="expires">
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<style>
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body {
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font: 16px arial, 'Microsoft Yahei', 'Hiragino Sans GB', sans-serif;
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}
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h1 {
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margin: 0;
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color: #3a87ad;
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font-size: 26px;
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}
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.content {
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width: 45%;
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margin: 0 auto;
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}
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.content > div {
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margin-top: 50px;
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padding: 20px;
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background: #d9edf7;
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border-radius: 12px;
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}
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.content dl {
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color: #2d6a88;
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line-height: 40px;
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}
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.content div div {
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padding-bottom: 20px;
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text-align: center;
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}
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</style>
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</head>
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<body>
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<div class="content">
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<div>
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<h1>HTTP 502 - Bad Gateway 没有响应</h1>
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<dl>
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<dt>错误说明：坏的网关，http向后端节点请求，没有响应</dt>
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<dt>原因1：DNS 缓冲</dt>
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<dd>解决办法：</dd>
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<dd>在dos窗口运行 ipconfig /flushdns，该命令会刷新DNS缓冲。</dd>
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<dt>原因2：浏览器代理</dt>
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<dd>解决办法：</dd>
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<dd>关掉代理。</dd>
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<dt>原因3：dns 被劫持了，即使使用国外的dns，也会被劫持</dt>
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<dd>解决办法：</dd>
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<dd>
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去掉VPN服务器的DNS。切换另外的dns。在windows系统中，可以在本地网络连接的属性中，去掉默认的dns，选用国外的dns，比如google的或opendns。
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</dd>
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<dt>原因4：php执行超时</dt>
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<dd>解决办法：</dd>
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<dd>修改/usr/local/php/etc/php.ini 将max_execution_time 改为300。</dd>
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<dt>原因5：nginx等待时间超时</dt>
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<dd>解决办法：</dd>
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<dd>适当增加nginx.conf配置文件中FastCGI的timeout时间。</dd>
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</dl>
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</div>
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</div>
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</body>
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</html> |