Thank you for sending your enquiry! One of our team members will contact you shortly.
Thank you for sending your booking! One of our team members will contact you shortly.
Course Outline
Fundamentals and Planning for Linux Routers
- Examining the function of a Linux router in office and lab settings.
- Gaining an understanding of WAN, LAN, gateways, and basic traffic flow.
- Identifying necessary interfaces, packages, and deployment assumptions.
- Planning IP addressing schemes, 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 purposes.
Implementing Routing, NAT, and Basic Firewall Rules
- Understanding packet forwarding and source NAT within a router configuration.
- Creating iptables rules for NAT and LAN-to-WAN forwarding.
- Permitting return traffic and basic administrative access.
- Saving and restoring firewall rules across system reboots.
Delivering 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 functionality.
Testing, Troubleshooting, and Hardening
- Verifying end-to-end connectivity from LAN clients to the WAN.
- Utilizing common Linux tools to inspect routes, rules, interfaces, and services.
- Troubleshooting frequent issues related to forwarding, NAT, and DHCP.
- Applying fundamental 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 behavior.
- Reviewing configuration files and recovery procedures.
- Summarizing key learnings and outlining next steps.
Requirements
- Knowledge of fundamental TCP/IP networking concepts, including IP addressing, subnets, and default gateways.
- Familiarity with basic Linux command-line administration and experience in editing configuration files.
- General experience in Linux system administration.
Audience
- Linux system administrators.
- Network administrators.
- IT support staff and infrastructure engineers.
14 Hours
Testimonials (1)
communication, knowledge from experience, solve problems,
