Dev {Tricks}

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Security and WordPress

Security tip

  1. Always update WordPress, plugins, themes and PHP and don’t use plugins or themes that are abandoned.
  2. Use a password manager tool to maintain unique and strong passwords for your Administrator accounts.
  3. Regularly check your site for plugins, themes or (administrator) users that are no longer in use, and delete them.
  4. Perform the Qualys SSL Labs scan via their website or the integrated scan in Really Simple Security. Anything below an A score is a reason to reconsider your hosting provider.
  5. Scan your security headers configuration via the Security Headers scan!
  6. The Free Cloudflare plan provides DDoS protection against no cost.

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WordPress WP-CLI for updating themes and plugins and more

  • Connect to SSH
  • Run the following commands
    • To update WordPress core: 
      wp core update
    • To update one plugin: 
      wp plugin update plugin-name
    • To update all plugins: 
      wp plugin update --all
    • To update one theme: 
      wp theme update theme-name
    • To update all themes: 
      wp theme update --all

For security reasons, it is recommended to keep WordPress, plugins, and themes up to date.

Export the database with WP-CLI

wp db export filename.sql

Import the database with WP-CLI

wp db import filename.sql

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Invalid JSON Error in WordPress

  • An error has occurred: The response is not a valid JSON response.
  • Updating Failed. The Response is Not a Valid JSON Response

1. Check the WordPress URLs in Settings > General

WordPress Address (URL)
Site Address (URL)

2. Fix the WordPress Permalink Structure

Go to Settings » Permalinks

Save Changes

3. Regenerate the WordPress .htaccess File

4. Check WordPress Site Health tool.

Go Tools » Site Health

Take necessary actions.

5. Deactivate All WordPress Plugins

WordPress plugins may conflict with each other or the WordPress core software. Deactivate all WordPress plugins and then activate them one by one and check.

6. If all the above test fails, then temporarily Switch to the Classic Editor and check.

7. Further Troubleshoot switching to a Default WordPress Theme

8. Temporarily Turn Off Website Application Firewall

9. Turn On Debugging in WordPress

define( 'WP_DEBUG', true );
define( 'WP_DEBUG_LOG', true );

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Elementor

Subscript and Superscript text

Toggle editor to text from visual.

For subscript

<sub>text</sub>

For superscript

<sup>text</sup>

 

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How to Install WordPress through webmin?

How to install WordPress on Webmin – Virtualmin and Usermin

  • Login to your Webmin Account where you want to install WordPress
  • Go to Virtualmin tab
  • Click on “Install Scripts”
  • You will find “WordPress” in the Available Scripts tab. Select it.
  • Click on “Show Install Options”
  • Now select or enter installation directory or sub-directory under public_html.
    • At top level
    • WordPress (directory)
  • Click on “Install now”
  • Confirm and click “Install now”
    • Are you sure you want to install WordPress into the directory /home/username/public_html? 4 files totalling 2.81 MiB already exist, and will be deleted if the script is un-installed.
  • Click on the link
    • WordPress initial installation finished. It can be completed at https://domain.com/wp-admin/install.php.
  • Select Language
  • Provide information needed
    • Welcome to the famous five-minute WordPress installation process! Just fill in the information below and you’ll be on your way to using the most extendable and powerful personal publishing platform in the world.
  • Click on “Install WordPress”
  • That’s ALL!