The error message you're encountering, "Failed to retrieve repodata/repomd.xml from cloudlinux-x86_64-server-* error was [Errno 14] HTTPS Error 404 - Not Found," indicates that yum or dnf is unable to locate the repository metadata (repomd.xml file) for the CloudLinux repository you're trying to access.

Here are steps to troubleshoot and potentially resolve the issue:

1. Verify Repository Configuration:

   • Ensure that the repository configurations  /etc/yum.repos.d/ for CloudLinux are correctly set up. Check for any typos or mistakes in the configuration files.

2. Update Repository Metadata:

   • Run the following commands to clean and regenerate the repository metadata:

• • sudo yum clean all sudo yum makecache

• Verify Repository URLs:

  • Confirm that the repository URLs in your configuration files are correct and accessible from your network. Verify that there are no typos or mistakes in the URLs.

• Temporary Disable Repository:

  • If the error persists with a specific repository, you may temporarily disable it by setting enabled=0 in the repository configuration file.

• Check for Proxy Settings:

  • If your server is behind a proxy, make sure that the proxy settings are correctly configured. You might need to set up proxy settings in /etc/yum.conf or in the specific repository configuration file.

• Check Firewall Rules:

  • Verify that your server's firewall is not blocking outgoing connections to the CloudLinux repositories. Allow traffic on the relevant ports (usually 80 and 443).

• Temporary DNS Issues:

  • There might be temporary DNS resolution issues. Try using a different DNS server or check if your current DNS server is functioning properly.

• Check SELinux:

  • If you have SELinux enabled, it might be preventing the server from accessing certain directories or files. You can temporarily set SELinux to permissive mode: