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 Primary solutionThis article will list common reasons for variants of the above error in the OP5 Monitor solution. Take extra note of the specific file listed in the error message. index.phpIf you are getting the following error pertaining to Nagvis when trying to access your maps: The requested URL /nagvisls/frontend/nagvis-js/index.php was not found on this server." This may be caused by an out of date # mv /opt/monitor/op5/nagvis_ls/etc/nagvis.ini.php /opt/monitor/op5/nagvis_ls/etc/nagvis.ini.php.bak Alternate solution to "The requested URL /nagvisls/ ..."For some users, replacing the Open up this file: # vim /etc/httpd/conf.d/nagvis.conf Copy the line that looks like this: Alias /nagvis "/opt/monitor/op5/nagvis_ls/share" Modify the copied line, and ensure you have two lines that look like this: Alias /nagvis "/opt/monitor/op5/nagvis_ls/share" Then restart Apache (httpd) and retry your link. Related articles
Oct 13, 2022 Will M. 6min Read Error 404 not found is one of the most common issues you may encounter while browsing. This HTTP status code means the requested page can’t be found on the website server. It may indicate a flaw with a hosting service or your domain name system (DNS) configuration settings. Encountering this error may leave a negative impression on your website visitors. It can also negatively impact search engine optimization (SEO) and your website’s ranking. The dead-end page hinders search engines’ ability to crawl your website properly. Fortunately, since it is mainly a client-side issue, it is relatively easy for website owners to fix the 404 error. This article will explain the possible causes of error 404 and show four effective methods to resolve it. Download Ultimate WordPress Cheat Sheet
What Is Error 404?Error 404 is a client-side issue indicating the requested URL can’t be found on the server. It may occur because of several reasons, such as the domain is not pointed correctly, a broken .htaccess file, or misconfigured file permissions. What Causes the 404 Error Message?The 404 error not found means the browser has connected and sent the request to the web server. However, the latter can’t find the requested resource. As a result, the browser can’t load the web page, showing a 404 error. Many factors can cause error 404 not found, including:
A 404 error can occur in any web browser. The error code may look slightly different depending on which one you use. Mozilla FirefoxMozilla Firefox shows a straightforward message by displaying a 404 Not Found page with a description saying, “The resource requested could not be found on this server!”. Google ChromeIf you come across a 404 error page on Chrome, the browser shows a descriptive message under the HTTP status code. OperaWhen a 404 error occurs on Opera, the browser displays the description of the status page on the upper part of the page. Microsoft EdgeMicrosoft Edge shows the HTTP Error 400 message and a description saying, “The request URL is invalid.” Many websites display custom 404 not found errors. While it isn’t strictly necessary, it helps explain to the visitors that the website works, but the page they’re looking for cannot be found. 4 Ways to Resolve 404 ErrorsSometimes, it only takes a quick fix to solve error 404 not found. Therefore, we recommend trying these simple steps before exploring other methods to troubleshoot the issue:
We also recommend performing the following actions:
If the 404 error persists, your website may have an underlying issue. The following section will explain four methods to fix the error message – checking the DNS settings, updating file permissions, disabling the .htaccess code, and restoring a backup file. 1. Make Sure the Domain Is Pointing To Your HostingIf the domain is still propagating, you may encounter a 404 error page. To solve it, you will need to wait until the propagation is complete. Usually, it takes a maximum of 24 hours until the DNS resolves. Additionally, the 404 error can be caused by misconfigured DNS settings. You may have pointed the domain to an incorrect nameserver or a wrong IP address through an A record. Therefore, you need to check if the domain is pointed correctly to solve this issue. There are two methods to connect a domain to your hosting – using nameservers or the IP address via an A record. Here’s how to check your Hostinger nameservers and IP address:
There are plenty of online tools to check which DNS server your domain is pointed to, such as DNS Checker, DNSMap, and whatsmydns.net. 2. Fix File PermissionsIf error 404 still occurs, we recommend fixing file permissions. When you use web hosting, the server manages your files and sends them to the browser so it can load the site. File and folder permissions let the server know who can run, read, or edit the data on the hosting account. However, if the values are misconfigured, the web page may show a 404 error. Therefore, you will need to modify the file permissions to solve this issue. If you’re a Hostinger user, the default values are 644 for files and 755 for folders. Here’s how to fix file permissions on hPanel:
In most cases, this should solve the 404 page not found error. However, if you still encounter the issue, proceed to the following step. 3. Disable the .htaccess FileURL redirections, access control, website security, and performance are managed by a directory-level configuration file called .htaccess or Hypertext Access. As an essential part of a website, .htaccess is located inside the public_html directory alongside other critical data. However, it can become corrupt for several reasons, such as incompatible plugins and wrong configuration. A broken .htaccess may disrupt a website’s appearance and cause a 404 error page. To fix this problem, disable and replace it with a new one. Here’s how to disable .htaccess:
Next, here’s how to create a new .htaccess:
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
If you can access the website after disabling and creating a new .htaccess file, it was probably causing the 404 page not found error. 4. Restore Backup404 error messages may occur when internet users come from external links from other sites that redirect them to deleted web pages. To solve this issue, restore the site backup. Note that this method only works if certain website pages are broken or show a 404 error. Here’s how to restore a website backup in Hostinger:
Conclusion404 not found is a HTTP status code error that indicates the specific page you are trying to visit is non-existent. Usually, it occurs when the domain points to an incorrect DNS address, files or folders have misconfigured permissions, or the system runs a corrupt .htaccess file. When the 404 error appears, it is critical to solve the issue immediately. This article has compiled four effective ways to fix it:
We hope this article has helped you fix the 404 not found error. If you have questions or suggestions, feel free to leave them in the comments section below. Will Morris is a staff writer at WordCandy. When he's not writing about WordPress, he likes to gig his stand-up comedy routine on the local circuit. What causes the requested URL was not found on this server?As you might know, a 404 error is "File not found." This can happen when a file is deleted or there is an error in a hyperlink. It can also happen if a file is copied and the original deleted. The new file will have a new address and previous links will not work.
How do I fix specified URL Cannot be found?Check your domain settings
You may have forgotten to enter your domain on your site editor. Go to your site editor and click Settings > Custom Domain. Make sure that you have the right domain on the custom domain box. If you recently connected your domain, it might take up to a few hours before the DNS propagates.
Why does it say not found on this server?The “Server Not Found” error is a common occurrence on the Internet. Many different reasons can cause it, but the most common cause is the lack of connectivity between the client and server. This error indicates that you are unable to find the requested information on your site.
What is the requested URL?A request URL consists of an HTTP method, a base URL, and a resource URI. The request header also includes parameters such as the content type and authorization information.
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What does the requested URL index PHP was not found on this server mean?
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