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Fedora Linux System Administration

Fedora Linux System Administration

By : Alex Callejas
5 (5)
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Fedora Linux System Administration

Fedora Linux System Administration

5 (5)
By: Alex Callejas

Overview of this book

Fedora Linux is a free and open-source platform designed for hardware, clouds, and containers that enables software developers and community members to create custom solutions for their customers. This book is a comprehensive guide focusing on workstation configuration for the modern system administrator. The book begins by introducing you to the philosophy underlying the open-source movement, along with the unique attributes of the Fedora Project that set it apart from other Linux distributions. The chapters outline best practices and strategies for essential system administration tasks, including operating system installation, first-boot configuration, storage, and network setup. As you make progress, you’ll get to grips with the selection and usage of top applications and tools in the tech environment. The concluding chapters help you get a clear understanding of the basics of version control systems, enhanced Linux security, automation, virtualization, and containers, which are integral to modern system administration. By the end of this book, you’ll have gained the knowledge needed to optimize day-to-day tasks related to Linux-based system administration.
Table of Contents (20 chapters)
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1
Part 1:The Fedora Project
3
Part 2:Workstation Configuration
8
Part 3:Productivity Tools
13
Part 4:System Administration Tools

Boosting performance with network tuning

The network represents one of the most complex and key elements involved in tuning the system. Being an externally self-organizing element, some network elements could affect performance. To identify and adjust them, it is necessary to know the flow that a packet follows both when transmitted and received by a system, as well as the tuning options available for them.

The transmission and reception flow of the packet is roughly as follows:

  • Transmission:
    1. Data gets written to a socket (an object such as a file) and sent to the transmit buffer.
    2. The kernel encapsulates the data in a protocol data unit (PDU).
    3. The PDUs go to the device’s transmit queue.
    4. The network device driver copies the PDU from the transmit queue header to the NIC.
    5. The NIC sends the data and triggers an interrupt when transmitted.
  • Reception:
    1. The NIC receives a frame and uses DMA to copy the frame to the receive buffer.
    2. The NIC triggers a hard interrupt.
    3. The kernel...
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