Linux Networking Training Overview
This Linux Networking course focuses on understanding, configuring, and managing Linux networking. Participants learn foundational concepts, advanced configurations, and troubleshooting techniques to manage network operations effectively.
Location and Pricing
Accelebrate offers instructor-led enterprise training for groups of 3 or more online or at your site. Most Accelebrate classes can be flexibly scheduled for your group, including delivery in half-day segments across a week or set of weeks. To receive a customized proposal and price quote for private corporate training on-site or online, please contact us.
In addition, some courses are available as live, instructor-led training from one of our partners.
Objectives
- Understand Linux networking fundamentals, including interfaces, IP addressing, and routing.
- Configure and manage networking services like DHCP, DNS, and firewalls.
- Analyze and troubleshoot networking issues using Linux tools.
- Secure Linux-based networks against common threats.
- Implement advanced networking techniques, including VLANs, bonding, bridging, and VPNs.
Prerequisites
Students must have taken Linux System Administration or have equivalent experience.
Outline
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Introduction to Networking Concepts
- Overview of the OSI Model
- Understanding TCP/IP and its Components
- Networking Protocols in Linux
Linux Networking Basics
- Understanding Network Interfaces
- Tools for Managing Network Interfaces
- Configuring Static and Dynamic IPs
- Basics of Subnetting and CIDR Notation
- Setting Up Hostnames and Editing
Routing and ARP
- Default Gateways and Static Routes
- Viewing and Managing the Routing Table (route, ip route)
- Understanding ARP and using arp and ip neigh
Configuring Networking Services
- Setting Up a DHCP Server with isc-dhcp-server
- Configuring a Local DNS Server with bind9
- Introduction to Web Servers (Apache/Nginx Basics) for Testing
Firewall Configuration and NAT
- Introduction to Firewalls: iptables vs nftables
- Creating Basic Firewall Rules (Allow/Deny Traffic)
- Configuring Network Address Translation (NAT)
- Port Forwarding Examples
Networking Tools for Analysis and Monitoring
- Packet Sniffing and Analysis with tcpdump and Wireshark
- Monitoring Network Traffic with iftop, iptraf, and nload
- Using netstat and ss for Active Connection Tracking
Advanced Networking Techniques
- Setting Up VLANs with vconfig or ip link
- Network Bonding for Redundancy (mode 0 vs mode 1)
- Configuring Network Bridges for Virtual Machines
- Deploying VPNs with OpenVPN and WireGuard
Securing Linux Networks
- Hardening SSH
- Protecting Against Brute-Force Attacks
- Using tcp_wrappers and ufw for Service-Specific Restrictions
- DoS/DDoS Prevention (Rate Limiting with iptables)
Troubleshooting Linux Networks
- Diagnosing Connection Issues (ping, traceroute, mtr)
- Debugging DNS Problems (dig, nslookup)
- Checking Interface and Link Status (ethtool, ip link)
- Comprehensive System Logs Analysis
Conclusion
Training Materials
All Linux Networking training attendees receive comprehensive courseware.
Software Requirements
Attendees will not need to install any software on their computers for this class. The class will be conducted in a remote environment that Accelebrate will provide; students will only need a local computer with a web browser and a stable Internet connection. Any recent version of Microsoft Edge, Mozilla Firefox, or Google Chrome will work well.
