network-automation Archives

Networking tutorial - IT technology blog

Mitigate DDoS with BGP Flowspec and ExaBGP on Linux: Automated Routing-Level Packet Filtering

October 19, 2026

Volumetric DDoS attacks can overwhelm Linux network stacks in seconds. Learn how to combine ExaBGP with BGP Flowspec to automatically push line-rate filtering rules directly into core routing silicon.

Networking

Deploying NetBox as a Single Source of Truth: Centralized DCIM, IPAM, and Network Automation

October 7, 2026

Deploy NetBox as your authoritative network Single Source of Truth (SSoT). Master DCIM and IPAM data modeling, render switch configs with Python, and feed dynamic inventory directly into Ansible.

Networking

Multi-Vendor Network Automation: Stop Fighting the CLI with NAPALM and Python

September 7, 2026

Ditch the manual CLI work. Learn how to use NAPALM and Python to automate Cisco, Juniper, and Arista devices with a single, unified workflow.

Networking

Validating Network-as-Code with Batfish: How to Stop Guessing and Start Proving

August 28, 2026

Ditch the manual CLI checks. Learn how to use Batfish to mathematically verify your network configurations, test firewall rules, and prevent outages before they happen.

Networking

Multi-Vendor Network Automation: A Practical Guide to Ansible and Jinja2

August 21, 2026

Managing a mix of Cisco, Juniper, and Mikrotik devices manually is a recipe for disaster. Discover how to use Ansible and Jinja2 to build a unified, error-free automation workflow.

Networking

Network Lab Simulation with Containerlab: Build Virtual Router and Switch Environments Faster Than GNS3

June 17, 2026

Containerlab lets you simulate complex multi-vendor network topologies using containers instead of resource-heavy VMs — deploy a 5-node BGP lab in under 60 seconds. This guide walks through installation, topology files, FRRouting BGP setup, and CI/CD integration with practical examples.

Networking

Automate Network Device Config Backups with Oxidized: Git-Tracked History for Every Switch and Router Change

June 13, 2026

Oxidized is a lightweight daemon that polls your network devices, captures running configs, and commits any change to Git — building a complete version history across every switch and router you manage. This guide covers installation, device inventory setup, Git backend configuration, and credential hardening for production.

Networking

Stop Configuring Switches One by One: Master Network Automation with Python and Netmiko

April 10, 2026

Ditch manual SSH logins. Learn how to use Python and Netmiko to automate Cisco and Juniper batch configurations, error handling, and multi-vendor management.