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Course Outline
Linux Router Fundamentals and Planning
- Examining the role of a Linux router within office and lab environments.
- Understanding WAN, LAN, gateways, and fundamental traffic flow.
- Identifying necessary interfaces, packages, and deployment assumptions.
- Planning IP addressing, interface roles, and router services.
Configuring Network Interfaces with Netplan
- Identifying and validating network interfaces on the Linux host.
- Configuring WAN and LAN interfaces using Netplan.
- Enabling persistent IP forwarding for routing.
Implementing Routing, NAT, and Basic Firewall Rules
- Understanding packet forwarding and source NAT in a router setup.
- Creating iptables rules for NAT and LAN-to-WAN forwarding.
- Permitting return traffic and basic administrative access.
- Saving and restoring firewall rules across reboots.
Providing DHCP and Local DNS with dnsmasq
- Installing and configuring dnsmasq for the LAN segment.
- Defining DHCP ranges, gateway options, and upstream DNS settings.
- Binding dnsmasq to the appropriate interface and validating leases.
- Testing client address assignment and name resolution.
Testing, Troubleshooting, and Hardening
- Verifying end-to-end connectivity from LAN clients to the WAN.
- Utilising common Linux tools to inspect routes, rules, interfaces, and services.
- Troubleshooting common issues with forwarding, NAT, and DHCP.
- Applying basic operational and security best practices for a router host.
Hands-on Build and Review
- Constructing a functional custom Linux router based on a defined scenario.
- Validating configuration persistence and service startup behaviour.
- Reviewing configuration files and recovery steps.
- Summarizing lessons learned and subsequent steps.
Requirements
- Foundational knowledge of TCP/IP networking, encompassing IP addressing, subnets, and default gateways.
- Basic proficiency in Linux command-line administration and experience editing configuration files.
- General experience in Linux system administration.
Audience
- Linux system administrators.
- Network administrators.
- IT support and infrastructure engineers.
14 Hours
Custom Corporate Training
Training solutions designed exclusively for businesses.
- Customized Content: We adapt the syllabus and practical exercises to the real goals and needs of your project.
- Flexible Schedule: Dates and times adapted to your team's agenda.
- Format: Online (live), In-company (at your offices), or Hybrid.
Price per private group, online live training, starting from 2600 € + VAT*
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Testimonials (2)
communication, knowledge from experience, solve problems,
Marcin Walewski - Intel Technology Poland Sp. z o.o.
Course - OpenStack Bootcamp
The virtual desktop in a browser feature was kind of neat.
