What are VirtualHosts?

For this example we will use VIM.

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In order to edit the file you will need to open it as root which is why we use sudo here. Now that it is open we can edit it to redirect Facebook into nothing. You will notice that with Ubuntu there is also a section for IP6. For most needs you will only need to edit it the top section and ignore the IP6. Now we can save the file and try to go to Facebook. Just like in windows we will see that we are now redirected to a site that does not exist. In macOS, accessing the hosts file is very similar to Ubuntu. Begin in terminal and use your favorite editor, even is you wish to call a GUI text editor, it is easier to do so from terminal.

The file will look a bit more like Windows, only with a little less explanation.

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Again we are going to redirect Facebook. This time it seems that 0. There are some things to note from this walkthrough that we did notice. When tested it, Chrome did not use the hosts file in any operating system but we were able to block Facebook in Chrome by adding www. An FTP client allows you to transfer files between a server and your computer.

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Connect to your website using the FTP client. You will need FTP login information which you can get from your web host. Simply right click on the file and then select download from the menu. Your FTP client will now download wp-config. You can open and edit it using a plain text editor program like Notepad or Text Edit. You can also see a sample of this file here. Each section of wp-config. Almost all settings here are defined using PHP Constants.

You will need your MySQL host, database name, database username and password to fill in this section. Authentication unique keys and salts are security keys that help improve security of your WordPress site.

What Are Config Files, and How Can You Edit Them?

These keys provide a strong encryption for user sessions and cookies generated by WordPress. See our guide on WordPress Security Keys for more information. You can generate WordPress security keys and paste them here. This is particularly useful if you suspect your WordPress site may have been compromised. Changing security keys will logout all currently logged in users on your WordPress site forcing them to login again.

It is recommended that you change your WordPress database table prefix to something random. This will make it difficult for hackers to guess your WordPress tables and will save you from some common SQL injection attacks. Please note that you cannot change this value for an existing WordPress site. Follow the instructions in our how to change the WordPress database prefix article to change these settings on an existing WordPress site.

This setting is particularly useful for users trying to learn WordPress development, and users trying experimental features. Simply setting the debug mode to true will show you these notices. This provides crucial information to developers to find bugs. The last part of wp-config file defines the absolute path which is then used to setup WordPress vars and included files. There are some other wp-config. You can also change these URLs using wp-config. This comes handy if you are unable to access the WordPress admin area due to error too many directs issue.

Simply add these two lines to your wp-config. You also need to keep in mind that search engines treat www. If your site is indexed with www prefix then you need to add your domain name accordingly. If you want to store your media files in someother location then you can do so by adding this line of code in your wp-config.

How to Edit wp-config.php File in WordPress

Adding an absolute path here will not work. See out detailed guide on how to change default media upload location in WordPress for more information. WordPress introduced automatic updates in WordPress 3. It allowed WordPress sites to automatically update when there is a minor update available.

While automatic updates are great for security, but in some cases they can break a WordPress site making it inaccessible. Adding this single line of code to your wp-config. See our tutorial on how to disable automatic updates in WordPress for more information. WordPress comes with built-in autosave and revisions.

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See our tutorial on how to undo changes in WordPress with post revisions. However, if you run a large site revisions can increase your WordPress database backup size. Add this line of code to your wp-config. Replace 3 with the number of revisions you want to store. WordPress will now automatically discard older revisions. However, your older post revisions are still stored in your database. See our tutorial on how to delete old post revisions in WordPress.

We hope this article helped you learn how to edit wp-config. If you liked this article, then please subscribe to our YouTube Channel for WordPress video tutorials. You can also find us on Twitter and Facebook. Trusted by over 1. Thank you, glad you liked our article. Glad our article could be helpful. Hi there, great article. What should I do to make my site work again properly?

Thanks in advance. Tried to log into WordPress to check support blogs and my username is not recognised. I am a newbie at wordpress. I uploaded the files via Filezilla and got everything configured. Now how exactly do I actually access my new wp-blog site? There were several other file folders that came with Wp.

If your host requires the site to be in the main directory, you would want to follow the steps in the WordPress coded to move directories on your existing server. Hi, Thank you for the useful article. I changed the cache plugin of my site and I need to change the line about it at the beginning of the file to override details of the previous plugin.

Thanks for your help. If your plugin is requiring you to edit your wp-config file you would normally want to edit the wp-config file before activating your new plugin. Question: Q: Question: Q: Access to. Someone suggested a command I could use in Terminal, but when I tried, I got the message that I didn't have the permission. Repairing permissions didn't help.

Someone could be eavesdropping on you right now man-in-the-middle attack! It is also possible that the RSA host key has just been changed. Please contact your system administrator. Host key verification failed. More Less. Mac OS X Speciality level out of ten: 1.