Overview

Build reliable multi cloud networks with VyOS that you can automate, test, and operate with confidence. Engineers are asked to ship routing, firewalling, and VPN changes faster than ever, across on premises, AWS, and Azure. Manual steps drift, outages last too long, and audits lack a clear trail. This book gives you a practical path. You will install VyOS on hardware, hypervisors, and cloud instances, set a clean baseline, and manage configuration as code. Then you will design routing, security, and VPN services, automate them with Ansible and Terraform, and run them with observability that catches issues early. Provision VyOS on bare metal and virtual platforms, set stable images, and build a dependable baseline for SSH, syslog, DNS, NTP, and interfaces Use configuration mode and the declarative tree safely, compare and roll back changes, and store device state under version control Design routing with static routes, BGP for multi site and cloud, and OSPF for internal segments, apply route policy and redistribution without surprises Apply zone based firewalling, stateful rules, and NAT for real services, and enable high availability with VRRP and connection tracking replication Build IPsec and WireGuard VPNs for site to site and remote access, standardize lifetimes and crypto, and validate tunnels with targeted tests Automate device changes with the official Ansible collection, create reusable roles and idempotent tasks, and run safe workflows in CI Provision cloud underlay with Terraform for AWS VPCs and Azure VNets, connect with Transit Gateway and Azure peering, and keep variables and state clean Use the VyOS HTTP API for authenticated, transactional changes, integrate Python clients, and add policy checks before deploy Operate with SNMP and syslog, add Prometheus and Grafana dashboards, and write precise alerts for BGP, VPN, and firewall signals Troubleshoot under pressure with a repeatable flow for interfaces, routing neighbors, NAT, firewall counters, and packet capture Run production maintenance with image based upgrades, canary rollouts, and clear rollback, and schedule configuration archives that are actually usable This is a code heavy guide. Each topic includes working Shell, YAML, HCL, JSON, and Systemd Unit examples labeled precisely so you can copy, adapt, and ship real changes. Grab your copy today and build a network practice that scales.

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