FreeRADIUS Dynamic Clients from netbox

netbox is an asset management system, which includes IPAM and DCIM functions. In an IT environment it serves as the source of truth. Therefore all other services should use netbox as its backend. In this article I want to describe how to configure FreeRADIUS to lookup clients in netbox.

The …

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netbox integration with KEA DHCP Server

netbox is an asset management system, which includes IPAM and DCIM functions. In an IT environment it serves as the source of truth. So all other services should use netbox as its backend. In this article I want to describe how to setup the integration between netbox and the KEA …

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Create firewalld Rules from netbox

The netbox asset management system offers the possiblity to add services to devices and virtual machines. With full automation installed to create virtual machines from netbox it would be cool to also create the firewall rules for new machines from the information stored in netbox.

netbox Service Field

For every …

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Onboarding Interfaces with netbox

Michael Schwartzkopff , 21 Nov 2020

Onboarding new devices is a nice new feature of netbox. But the onboarding does not include interfaces. In this article I want to present a method to read out the interfaces of devices and add them to netbox automatically. It uses ansible, but plain python with napalm as abstraction layer …

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Device Discovery with netbox

netbox is a cool asset management system that serves as source of truth. Configurations are derived from netbox and deployed with ansible or saltstack. But how does netbox get the information about all devices? In this article I want to discuss a method to discover new devices based on known …

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Fast Provisioning with Netbox and Ansible

Motivation

Administrators of services need new servers fast. They do not want to wait until the master of the virtualization environment has time to setup their new machines.

The solution is automation. The administrators get access to the inventory tool and can click their new machines themselves. Clever automation in …

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Upgrade IOS with ansible

Motivation

A reoccuring task of a network administrator is the upgrade of all kinds of devices in the network. A boring task that takes its time. A worthy task for automation. In this artice I want to present a collection of playbooks that will do the upgrade.

My intention was …

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Using netbox as external pillar

Network automation is cool. But even better is deriving the configuration information from an asset management system that serves as the source of truth for anything in the network. In this article I will present a solution with saltstack that uses netbox as the data store (pillar) to set the …

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SNMPv3 Informs

In a recent monitoring project we had to set up SNMPv3 informs to be sent from the servers in the data center to our monitoring system. Since I found no really convincing documentation in the net I decided to write something here how to receive SNMPv3 with snmptrapd and how …

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