Book Image

Essential Linux Commands

By : Paul Olushile
Book Image

Essential Linux Commands

By: Paul Olushile

Overview of this book

The role of a system administrator is ever-evolving, with the Linux command line at its core. This makes Linux command-line mastery an essential skill to demonstrate your ability to efficiently manage and maintain systems efficiently. Essential Linux Commands addresses a diverse range of topics, including package management, file manipulation, networking strategies, system monitoring, and diagnostic tools. Each command is intricately explained to eliminate any ambiguity, ensuring ease of implementation in real-world scenarios. This book explains how to use SELinux to maintain security, run Linux machines on AWS Cloud, and transfer and download files to remote systems. With the help of practical examples and use cases, you’ll not only gain a thorough understanding of a command’s syntax but also grasp its functional breadth and limitations. The book also explores commands frequently used by system administrators to check network card statistics and firewall rules. Whether you’re a beginner or an experienced administrator, this book is an invaluable resource, filling in the gaps in your skill set and helping you improve your skills and expertise in Linux administration.
Table of Contents (20 chapters)
1
Part 1:Server Installations and Management Commands
5
Part 2:Frequently Used Commands – Part 1
9
Part 3:Frequently Used Commands – Part 2
15
Part 4:Linux Security and the Cloud

Linux IPTABLES and Network Commands

Linux IPTABLES and network commands are essential tools for Linux system administrators to manage and control network traffic and security. IPTABLES is a powerful firewall tool that allows administrators to define rules for filtering, forwarding, and modifying network packets. It plays a crucial role in ensuring network security by blocking unauthorized access, preventing malicious traffic, and protecting sensitive data. Additionally, IPTABLES enables administrators to create complex network configurations, such as network address translation (NAT) and port forwarding, to optimize network performance and facilitate communication between internal and external networks, while the network commands in Linux offer a wide range of functionalities to monitor and manage network connections, interfaces, and network-related statistics. These commands provide insights into network performance, bandwidth usage, and active connections, enabling administrators...