There are two possible attributes for the section: defaultRedirect and mode.
Custom error code snippet from web.config. A typical section will look like Example 7-6. For example, change the line: for (i = 0 i section within the section, which is contained within the section. Change the test expression to cause an error intentionally at run-time. Find the for loop that populates the DropDownList in the Page_Load method. To demonstrate what happens if there is no error handling in place, modify the sample project from this chapter to force some errors. While you will try to eliminate all the bugs from your code, you do want your program to react gracefully when a subtle bug or unexpected problem rears its ugly head. If you can't reproduce the problem, it is terribly difficult to find it. The very hardest bugs to find are those that occur least often. The program successfully compiles and may run perfectly well most of the time yet still contain errors in logic. More problematic, and often more difficult to catch, are errors in logic. If the error is caused by something such as an unbalanced parenthesis or bracket, or a missing semicolon in C#, then the actual error may not be on the exact reported line. When the compiler finds a syntax error, an error message containing the location of the error and a terse explanation will be displayed in the Output window of VS2005. It is very difficult for a syntax error to slip by into production code. Should any syntax errors remain or if you are using a different editor, then any syntax errors will be caught by the compiler every time you build the project. If Auto List Members is turned on (Tools Options Text Editor All Languages), the incidence of syntax errors is further reduced. Depending on how VS2005 is configured, any code element that isn't recognized is underlined. Syntax errors are reduced dramatically when using VS2005. When you compile the program, you will get a compiler error because the keyword to declare an integer is misspelled. For example, suppose you had the following line of code in your C# program: intt i The simplest bugs to find and fix are syntaxerrors: violations of the rules of the language. Errors can arise from any number of causes: user action, such as entering invalidly formatted text into a field, program logic errors, or circumstances entirely out of your control, such as an unavailable file or a downed network. You would like to avoid having the end user see ugly or cryptic error messages, or worse, having the application crash.
We offer a 14-day free trial.You can and should avoid bugs, but there are runtime errors that cannot be avoided and should be handled as gracefully as possible. That’s it! Now apache web server will automatically redirect all 404 error response code to homepage.īy the way, if you want to create charts & dashboards to monitor your business or website, you can try Ubiq.
Restart Apache Server to apply changes $ sudo service apache2 restart
Similarly, if you want to catch all 500 error responses, add the following line ErrorDocument 500 īonus Read: How To Enable mod_ssl in Apache If you want to redirect 404 to homepage, add the following line The above line will rewrite 404 error to URL you have mentioned. If you want to redirect 404 to URL (e.g /error) instead of a specific web page, then add the following line So if you want to redirect all 404 errors to a specific web page (e.g ) just add the following line to your. htaccessĪpache provides ErrorDocument directive to help you catch all types of error responses. htaccess file in your site’s root folder (e.g /var/Bonus read: How to Configure Apache Cache in UbuntuĢ. using dashboards & charts, to ensure everything is working well. htaccess configuration will be applied by Apache server.Īfter you redirect 404 in Apache, you may want to use a reporting software to monitor the key metrics about your website/application such as signups, traffic, sales, revenue, etc. Please ensure that you have enabled mod_rewrite in your Apache web server configuration. Here are the steps to redirect 404 to Homepage using. Here’s how to redirect 404 to homepage using. You can also redirect 404 to homepage of your website/application. When you run a website, it is a good practice to redirect 404 to specific URL, for a good user experience.