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502 Bad Gateway錯(cuò)誤通常是由于Nginx無(wú)法連接到您的應(yīng)用程序服務(wù)器而導(dǎo)致的。主要是因?yàn)閼?yīng)用程序服務(wù)器未能正確響應(yīng)Nginx的請(qǐng)求。以下是一些您可以嘗試的解決方法： 1. 檢查應(yīng)用程序服務(wù)器是否已啟動(dòng)，并且正在監(jiān)聽(tīng)正確的端口。如果不是，請(qǐng)啟動(dòng)應(yīng)用程序服務(wù)器或更改其配置以監(jiān)聽(tīng)正確的端口。 2. 檢查Nginx配置文件中的upstream配置是否正確。確保upstream配置指向您的應(yīng)用程序服務(wù)器，并且已指定正確的端口。 3. 檢查防火墻配置以確保Nginx可以連接到應(yīng)用程序服務(wù)器。如果您使用的是防火墻，請(qǐng)確保將所需的端口打開(kāi)。 4. 檢查Nginx錯(cuò)誤日志以獲取更多信息。在Nginx配置文件中指定要使用的錯(cuò)誤日志文件，并檢查其中的任何錯(cuò)誤消息。 5. 檢查應(yīng)用程序服務(wù)器的錯(cuò)誤日志以獲取更多信息。在應(yīng)用程序服務(wù)器的配置文件中指定要使用的錯(cuò)誤日志文件，并檢查其中的任何錯(cuò)誤消息。 6. 嘗試啟用Nginx的調(diào)試模式，以捕獲更多的詳細(xì)信息。在Nginx配置文件中指定要使用的調(diào)試日志文件，并檢查其中的任何錯(cuò)誤消息。

Public @ 2023-04-14 14:50:31

linux系統(tǒng)虛擬主機(jī)開(kāi)啟支持Swoole Loader擴(kuò)展

威海服務(wù)器/VPS 威海Linux
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特別說(shuō)明：只是安裝支持Swoole擴(kuò)展，主機(jī)并沒(méi)有安裝服務(wù)端。目前支持版本php5.4-php7.2。1、登陸主機(jī)控制面板，找到【遠(yuǎn)程文件下載】這個(gè)功能。image.png2、遠(yuǎn)程下載文件填寫http://download.myhostadmin.net/vps/SwooleLoader_linux.zip 下載保存的路徑填寫/others/image.png3、點(diǎn)擊控制面板【php版本】，選擇p

Public @ 2017-12-23 15:47:37

SQL Server 2005附加數(shù)據(jù)庫(kù)錯(cuò)誤5120解決辦法

1.附加數(shù)據(jù)庫(kù)提示錯(cuò)誤5120圖片117.png2.打開(kāi)“SQL Server Configuration Manager”配置界面圖片118.png3.選擇SqlServer(SQLSERVER),選項(xiàng)，并右擊圖片119.png4.選擇“Local System圖片120.png配置成功圖片121.png來(lái)源：景安

Public @ 2018-01-22 15:47:48

linux nginx 網(wǎng)站訪問(wèn)提示502 Bad Gateway

威海服務(wù)器/VPS 威海Nginx
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從日志報(bào)錯(cuò)分析，是php線程打開(kāi)文件句柄受限導(dǎo)致的，解決辦法：1、提升服務(wù)器的文件句柄打開(kāi)打開(kāi)vi /etc/security/limits.conf 底部加上* soft nofile 51200* hard nofile 51200vi /etc/sysctl.conf 底部添加fs.file-max=512002、提升nginx的進(jìn)程文件打開(kāi)數(shù)vi /www/wdlinux/ng

Public @ 2019-03-13 15:47:43

linux nginx 網(wǎng)站訪問(wèn)提示502 Bad Gateway

威海服務(wù)器/VPS 威海Nginx
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Public @ 2023-04-14 14:50:31

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基本文件流程錯(cuò)誤 SQL 調(diào)試

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[ DB ] CONNECT:[ UseTime:0.023183s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016417s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 7216 LIMIT 1 [ RunTime:0.015621s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '4', 'ref' => 'const', 'rows' => 1, 'extra' => NULL, ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='cate' order by times desc limit 15 [ RunTime:0.015985s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by times desc limit 100 [ RunTime:0.020300s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by rand() limit 30 [ RunTime:0.016641s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 7216 LIMIT 1 [ RunTime:0.015723s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '4', 'ref' => 'const', 'rows' => 1, 'extra' => NULL, ) ]
[ SQL ] update `ob_article` set views=views+2 where id=7216 [ RunTime:0.016490s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海服務(wù)器/VPS' AND `status` <> -1 LIMIT 1 [ RunTime:0.023286s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海服務(wù)器/VPS' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.037990s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海Nginx' AND `status` <> -1 LIMIT 1 [ RunTime:0.023087s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海Nginx' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.033779s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where; Using temporary; Using filesort', ) ]

0.445988s

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linux nginx 網(wǎng)站訪問(wèn)提示502 Bad Gateway

linux系統(tǒng)虛擬主機(jī)開(kāi)啟支持Swoole Loader擴(kuò)展

SQL Server 2005附加數(shù)據(jù)庫(kù)錯(cuò)誤5120解決辦法

linux nginx 網(wǎng)站訪問(wèn)提示502 Bad Gateway

linux nginx 網(wǎng)站訪問(wèn)提示502 Bad Gateway

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