{"id":16969,"date":"2020-11-12T04:13:19","date_gmt":"2020-11-11T20:13:19","guid":{"rendered":"https:\/\/web.mwwsb.com.my\/pjci\/?post_type=kb&#038;p=16969"},"modified":"2022-09-08T21:41:40","modified_gmt":"2022-09-08T13:41:40","slug":"common-http-errors-and-how-to-troubleshoot-them","status":"publish","type":"kb","link":"https:\/\/www.casbay.com\/guide\/kb\/common-http-errors-and-how-to-troubleshoot-them","title":{"rendered":"Common HTTP errors and how to troubleshoot them"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"16969\" class=\"elementor elementor-16969\" data-elementor-post-type=\"kb\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-57efc24 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"57efc24\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-449bf90\" data-id=\"449bf90\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a211c50 elementor-widget elementor-widget-heading\" data-id=\"a211c50\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-medium\">Common HTTP errors and how to troubleshoot them<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ca5325 elementor-widget elementor-widget-text-editor\" data-id=\"1ca5325\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>By reading this article, you can learn about different series codes. Also, we will guide you on the ways to troubleshoot some common HTTP errors. These errors include:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0fccbfb elementor-widget elementor-widget-heading\" data-id=\"0fccbfb\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-medium\">i) 400 Series code errors<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a5c4a8 elementor-widget elementor-widget-text-editor\" data-id=\"0a5c4a8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li>400 Bad Request<\/li><li>401 Unauthorized<\/li><li>403 Forbidden<\/li><li>404 Not Found<\/li><li>406 Not Acceptable<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fdfae4e elementor-widget elementor-widget-heading\" data-id=\"fdfae4e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-medium\">ii) 500 Series code errors<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8e2db13 elementor-widget elementor-widget-text-editor\" data-id=\"8e2db13\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li>502 Bad Gateway,<\/li><li>503 Service Unavailable<\/li><li>504 Gateway Timeout<\/li><li>508 Resource Limit Reached<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b549f48 elementor-widget elementor-widget-text-editor\" data-id=\"b549f48\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Well, now let&#8217;s start with errors from<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4981f72 elementor-widget elementor-widget-heading\" data-id=\"4981f72\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">400 Series codes<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6155216 elementor-widget elementor-widget-text-editor\" data-id=\"6155216\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>We consider the status codes in the 400 range to be client error codes. These kinds of error codes are often security-related. Moreover, we can also return the 400 level error codes if the request is malformed OR if the client times out.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e1b3a91 elementor-widget elementor-widget-text-editor\" data-id=\"e1b3a91\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h5><strong>1) 400 Bad Request<\/strong><\/h5>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-21809fc elementor-widget elementor-widget-text-editor\" data-id=\"21809fc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The 400 status code, or Bad Request error, means the HTTP request that we sent to the server has invalid syntax.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-07cfc45 elementor-widget elementor-widget-text-editor\" data-id=\"07cfc45\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Here are a few examples of when a 400 Bad Request error might occur:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-78b4f34 elementor-widget elementor-widget-text-editor\" data-id=\"78b4f34\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li>The user\u2019s cookie that is associated with the site is corrupt. Clearing the browser\u2019s cache and cookies could solve this issue<\/li><li>Malformed request due to a faulty browser<\/li><li>Malformed request due to human error when manually forming HTTP requests<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a5ad165 elementor-widget elementor-widget-text-editor\" data-id=\"a5ad165\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h5><strong>2) 401 Unauthorized<\/strong><\/h5>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9dcf1a0 elementor-widget elementor-widget-text-editor\" data-id=\"9dcf1a0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The 401 status code, or an Unauthorized error, means that the user trying to access the resource has not been authenticated or has not been authenticated correctly. This means that the user must provide credentials to be able to view the protected resource.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79a8492 elementor-widget elementor-widget-text-editor\" data-id=\"79a8492\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>To fix a 401 error, try turning off password protection in cPanel or use the correct username and password.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-22e89d7 elementor-widget elementor-widget-text-editor\" data-id=\"22e89d7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h5><b>3) 403 Forbidden<\/b><\/h5>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-68de58d elementor-widget elementor-widget-text-editor\" data-id=\"68de58d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The 403 status code, or a Forbidden error, means that the user made a valid request but the server is refusing to serve the request, due to a lack of permission to access the requested resource. Furthermore, 403 errors commonly occur when the user that is running the web server process does not have sufficient permissions to read the file.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ba7bf3f elementor-widget elementor-widget-text-editor\" data-id=\"ba7bf3f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">By default, servers display this error instead of a website\u2019s file structure if the browser cannot find the website\u2019s home page.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2cf1a70 elementor-widget elementor-widget-text-editor\" data-id=\"2cf1a70\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"text-decoration: underline;\"><span style=\"font-weight: 400;\">Index Page Missing:<\/span><\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-96a67fe elementor-widget elementor-widget-text-editor\" data-id=\"96a67fe\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li><span style=\"font-weight: 400;\">The website may be missing the page named index or the index page that we did not upload to the right location.<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-abe3478 elementor-widget elementor-widget-text-editor\" data-id=\"abe3478\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"text-decoration: underline;\"><span style=\"font-weight: 400;\">Index Page Misspelled:<\/span><\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-211cd69 elementor-widget elementor-widget-text-editor\" data-id=\"211cd69\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li><span style=\"font-weight: 400;\">The website may be missing the page named index or the index page that we did not upload to the right location.<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-497106d elementor-widget elementor-widget-text-editor\" data-id=\"497106d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"text-decoration: underline;\"><span style=\"font-weight: 400;\">Redirect with no Index Page:<\/span><\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-78191f5 elementor-widget elementor-widget-text-editor\" data-id=\"78191f5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">It\u2019s possible that there is a redirect setup that is stopping the index page from finding properly. If you have set up any redirects via javascript, cPanel, or directly with the .htaccess file, remove and try loading the website again.<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dc052a4 elementor-widget elementor-widget-text-editor\" data-id=\"dc052a4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"text-decoration: underline;\"><span style=\"font-weight: 400;\">Lack of permission to access the requested resource:<\/span><\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bfe155a elementor-widget elementor-widget-text-editor\" data-id=\"bfe155a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">When the user that is running the web server process does not have sufficient permissions to read the file which we are accessing<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cf01b7b elementor-widget elementor-widget-text-editor\" data-id=\"cf01b7b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h5><b>4) 404 Not Found<\/b><\/h5>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-05430ce elementor-widget elementor-widget-text-editor\" data-id=\"05430ce\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The 404 status code, or a Not Found error, means that the user is able to communicate with the server but it is unable to locate the requested file or resource.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43030d6 elementor-widget elementor-widget-text-editor\" data-id=\"43030d6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">404 errors can occur in a large variety of situations. If the user receives an error of 404 Not Found unexpectedly. Here are a few issues to ask during troubleshooting:<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-740a97f elementor-widget elementor-widget-text-editor\" data-id=\"740a97f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Does the link that directed the user to your server resource have a typo in it?<\/span><\/li><li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Did the user type in the wrong URL?<\/span><\/li><li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Does the file exist in the correct location on the server? Has the user been moving or deleting the resource on the server?<\/span><\/li><li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Does the server configuration have the correct document root location?<\/span><\/li><li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Does the user that owns the web server worker process have privileges to traverse to the directory that the requested file is in? (Hint: directories require read and execute permissions to be accessed)<\/span><\/li><li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Is the resource being accessed a symbolic link? If so, ensure the web server is configured to follow symbolic links<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fbbb505 elementor-widget elementor-widget-text-editor\" data-id=\"fbbb505\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h5><b>5) 406 Not Acceptable<\/b><\/h5>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d563c7a elementor-widget elementor-widget-text-editor\" data-id=\"d563c7a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Web browsers make a request for information from the server. When this happens, it sends an Accept header. This tells the server in what formats the browser can accept the data. If the server cannot send data in a format requested in the Accept header, the server sends the 406 Not Acceptable error. The cause of the 406 error is usually due to a mod_security rule on the server. Mod_security is a security module in the Apache web server that is enabled by default on all hosting accounts.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8d06589 elementor-widget elementor-widget-text-editor\" data-id=\"8d06589\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">If you are running into 406 errors and would like Mod_secutiry disabled on your account. Please take note that: when you create a ticket regarding a 406 error, you MUST include information on how our tech support team can reproduce the error as well as your IP address. (click here to find out your <\/span><a href=\"https:\/\/www.casbay.com\/ip\"><span style=\"font-weight: 400;\">IP address<\/span><\/a><span style=\"font-weight: 400;\"> easily)<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3c763b1 elementor-widget elementor-widget-heading\" data-id=\"3c763b1\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">500 Series codes<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a3b38c3 elementor-widget elementor-widget-text-editor\" data-id=\"a3b38c3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The 500 status code, or Internal Server Error, means that server cannot process the request for an unknown reason. This most common cause for this error is server misconfiguration (e.g. a malformed .htaccess file). However, the permissions issues, as well as memory usage limits can also cause the error. The content management systems such as WordPress and Joomla can affect memory usage limits.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8e5d7a8 elementor-widget elementor-widget-text-editor\" data-id=\"8e5d7a8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>If you are running into 500 errors, try checking the folders and files permissions, and\/or rename the .htaccess file and check the cPanel error log. If these options don\u2019t solve your issue, please submit a support ticket.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d493e1 elementor-widget elementor-widget-text-editor\" data-id=\"6d493e1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h5><strong>1) 502 Bad Gateway<\/strong><\/h5>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f863240 elementor-widget elementor-widget-text-editor\" data-id=\"f863240\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The 502 status code, or Bad Gateway error, means that the server is a gateway or proxy server, and it is not receiving a valid response from the backend servers that should actually fulfill the request. If the server in question is a reverse proxy server, such as a load balancer, here are a few things to check:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-06bda0c elementor-widget elementor-widget-text-editor\" data-id=\"06bda0c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li>The backend servers (where the HTTP requests are being forwarded to) are healthy<\/li><li>The user has configured the reverse proxy properly, with the proper backends specified<\/li><li>The network connection between the backend servers and the reverse proxy server is healthy. If the servers can communicate on other ports, make sure that the firewall is allowing the traffic between them<\/li><li>If you configure your web application to listen on a socket, ensure that the socket exists in the correct location and that it has the proper permissions<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9e84e40 elementor-widget elementor-widget-text-editor\" data-id=\"9e84e40\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h5><strong>2) 503 Service Unavailable<\/strong><\/h5>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c0a9d12 elementor-widget elementor-widget-text-editor\" data-id=\"c0a9d12\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The 503 status code, or Service Unavailable error, means that the server is overloaded or under maintenance. This error implies that the service should become available at some point. If the user has not been maintaining the server, this may show that the server does not have sufficient CPU or memory resources to manage all incoming applications, or that the web server must be configured to allow more users, threads, or procedures.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f6f77d8 elementor-widget elementor-widget-text-editor\" data-id=\"f6f77d8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h5><strong>3) 504 Gateway Timeout<\/strong><\/h5>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3bc2036 elementor-widget elementor-widget-text-editor\" data-id=\"3bc2036\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The 504 status code, or Gateway Timeout error, means that the server is a gateway or proxy server, and it is not receiving a response from the backend servers within the allowed time period. This typically occurs in the following situations:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a94e21 elementor-widget elementor-widget-text-editor\" data-id=\"7a94e21\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li>The network connection between the servers is poor<\/li><li>The backend server that is fulfilling the request is too slow, due to poor performance<\/li><li>The gateway or proxy server\u2019s timeout duration is too short<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e929f8 elementor-widget elementor-widget-text-editor\" data-id=\"2e929f8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h5><strong>4) 508 Resource Limit Reached<\/strong><\/h5>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-85f2f9c elementor-widget elementor-widget-text-editor\" data-id=\"85f2f9c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>A 508 Resource error is a result of your site using more than it\u2019s share of server resources. On a shared hosting platform, many domains\/websites share the resources of one server. If this is a consistent problem, you could consider upgrading to a VPS hosting plan, which would give you a greater share of resources.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d430e12 elementor-widget elementor-widget-text-editor\" data-id=\"d430e12\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>If your website is running on WordPress or another content management system like Joomla!, \u00a0the CMS may be using too many plug-ins or modules or is using a specific plug-in or module that is employing a lot of resources. \u00a0For example:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-35e04b1 elementor-widget elementor-widget-text-editor\" data-id=\"35e04b1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li>Some WordPress gallery plugins use enough resources to cause problems.<\/li><li>Some older WordPress templates incorrectly use a script called timthumb (this script generates thumbnail images on the fly).<\/li><li>WordPress Multisite will cause problems. \u00a0It not recommended for use on shared hosting services.<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cd2fab4 elementor-widget elementor-widget-text-editor\" data-id=\"cd2fab4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Besides 400 series and 500 series codes, there are some other codes which include:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eee7b58 elementor-widget elementor-widget-text-editor\" data-id=\"eee7b58\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h2 id=\"100-200-300-series-codes\">100, 200, 300 Series codes<\/h2>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0fb97cf elementor-widget elementor-widget-text-editor\" data-id=\"0fb97cf\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>HTTP status codes ranging from 100 to 199 are informational codes. If a browser is attempting to access a website and these codes are return, they are normally not displaying onscreen. They are simply internal codes for the browser\u2019s preference.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f798a81 elementor-widget elementor-widget-text-editor\" data-id=\"f798a81\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Status codes ranging from 200 to 299 are success codes. These codes are used internally by the browser as a way of confirming the success and the current status of a request. Although these codes are not normally displayed, there are troubleshooting tools that can read them, and they can be invaluable in the diagnostic process.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-db7b4ce elementor-widget elementor-widget-text-editor\" data-id=\"db7b4ce\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Status codes in the 300 to 399 range are redirection codes. They inform the web browser that to meet the application, some other action must be taken. It can be conducted automatically, depending on the nature of this intervention, or it may involve extra user input. For instance, status code 301 shows that a specific web page has been relocated permanently and that all future resource calls should be directed to a separate URL.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-939c3e6 elementor-widget elementor-widget-text-editor\" data-id=\"939c3e6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Learn about Entry Processes with this article &gt;&gt; <a href=\"https:\/\/www.casbay.com\/guide\/kb\/what-is-entry-processes\/\">What is Entry Processes?\u00a0<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Common HTTP errors and how to troubleshoot them By reading this article, you can learn about different series codes. Also, we will guide you on the ways to troubleshoot some common HTTP errors. These errors include: i) 400 Series code errors 400 Bad Request 401 Unauthorized 403 Forbidden 404 Not Found 406 Not Acceptable ii) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}}},"kbtopic":[117],"kbtag":[106],"mkb_version":[],"_links":{"self":[{"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/kb\/16969"}],"collection":[{"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/kb"}],"about":[{"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/types\/kb"}],"author":[{"embeddable":true,"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/comments?post=16969"}],"version-history":[{"count":5,"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/kb\/16969\/revisions"}],"predecessor-version":[{"id":36654,"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/kb\/16969\/revisions\/36654"}],"wp:attachment":[{"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/media?parent=16969"}],"wp:term":[{"taxonomy":"kbtopic","embeddable":true,"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/kbtopic?post=16969"},{"taxonomy":"kbtag","embeddable":true,"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/kbtag?post=16969"},{"taxonomy":"mkb_version","embeddable":true,"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/mkb_version?post=16969"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}