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LinkedIn Learning

Linux System Engineer: Networking and SSH

via LinkedIn Learning

Overview

Study to pass the RHCE exam—the benchmark certification for Red Hat Enterprise Linux. This course covers the networking and Secure Shell (SSH) topics from the exam.

Syllabus

Introduction
  • Demystify Linux networking and SSH
  • What you should know
  • OS installation
  • Lab setup
  • Install Guest Additions
1. Linux Networking Overview
  • Consistent network naming with systemd
  • About NetworkManager
2. Gather Network Information
  • Get IP address, subnet mask, and default gateway
  • Get system hostname
  • Get network information from the GUI
3. Use Network Tools
  • Ensure connectivity with ping
  • Get network statistics with ss and ip
  • Analyze ARP table with arp and ip
  • Query DNS servers with dig
4. Change Live Network Configuration
  • Change hostname
  • Change IP address and subnet mask
  • Change the default gateway
  • Change DNS server
5. Change Saved Network Configuration
  • Manual network interface configuration
  • Edit system hosts file
  • Configure networking using Network Manager
  • Configure networking using the GUI
6. Secure Shell Overview
  • SSH overview
  • Installing SSH client and server
  • Connecting to SSH from Windows
  • Connecting to SSH from macOS and Linux
  • Connecting to SSH from Android
  • Connecting to SSH from iOS
7. Configure SSH
  • Configure SSH clients
  • Configure SSH servers
  • SSH per user client files
8. SSH Security
  • Passwordless logins using SSH
  • Restricting root logins with SSH
  • Restricting SSH logins by user and network
9. SSH Tips and Tricks
  • Execute commands remotely using SSH
  • Copy files across the network over SSH
  • Optimize SSH for speed
Conclusion
  • Next steps

Taught by

Grant McWilliams

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