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Posted: June 8, 2023 | by Michael Bright

DNF (Dandified Yum) is a package manager used in several Linux distributions, including Fedora, Red Hat Enterprise Linux (RHEL), CentOS, and others. It is the successor to the yum package manager and is designed to provide improved performance, better dependency resolution, and enhanced user experience.

DNF shares many similarities with yum and maintains compatibility with existing yum commands and repositories. However, it introduces several key enhancements and features:

  1. Performance: DNF is built with the aim of delivering faster package management operations compared to yum. It achieves this through optimizations in metadata handling, dependency resolution algorithms, and parallel downloading of packages.
  2. Modular Design: DNF utilizes a modular design that allows for easier extension and integration with other software components. This design approach enables better maintainability and flexibility, facilitating future enhancements and integration with new technologies.
  3. Dependency Resolution: DNF incorporates a more advanced dependency resolver compared to yum. It can handle complex dependency chains, resolve package conflicts, and manage package updates and installations with greater efficiency.
  4. Improved User Experience: DNF offers a more user-friendly command-line interface with enhanced feedback and progress reporting. It provides clearer and more informative error messages, making it easier for users to understand and resolve issues during package management operations.
  5. Additional Features: DNF introduces additional features such as support for modular repositories, parallel downloading of packages, better handling of weak dependencies, and the ability to roll back transactions.

DNF utilizes repository metadata, which contains information about available software packages, dependencies, and other package-related details. It can install, update, remove, and query packages, as well as handle repositories and software groups.

With its performance improvements and enhanced functionality, DNF has become the default package manager in Fedora and RHEL 8 and newer versions. It provides users with a robust and efficient tool for managing software packages and dependencies in these distributions.

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