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Netdisco on Ubuntu 24.04 LTS

Azure Networking

Netdisco, the web based network management tool that discovers your switches and routers over SNMP and maps every device, port and connected node into a searchable inventory.

Base
Hardened build
minimal ports, security patches applied at build time
Access
Unique credentials
generated on first boot, readable only by root
Verified
Boots working
services pass a health gate before release
Support
24/7, 365 days
by email and live chat, 24 hour response SLA

Overview

Netdisco is an open source network management and discovery tool for small to very large networks. It polls your switches, routers and access points over SNMP (and CLI or device APIs), collecting IP and MAC address data into a PostgreSQL database, then presents a web interface to inventory every device, browse and search ports and nodes, locate where a given MAC or IP is connected, and view the topology of how devices link together. Network and operations teams use it to answer questions like which switch port a machine is on, what changed on the network, and where unused ports are.

This image bundles Netdisco together with its own local PostgreSQL database and the backend poller, behind an nginx reverse proxy, so a working console is ready the moment it boots: sign in, add your first device with its read only SNMP community, and Netdisco begins building the inventory. It suits network inventory and asset tracking, node and port location for support desks, and ongoing discovery of medium to large estates behind a single secure login.

Why the cloudimg image

cloudimg delivers Netdisco, its backend poller and a bundled PostgreSQL database fully installed behind an nginx reverse proxy, so a working console answers the moment the instance boots. The image is secure by default and carries no usable login: Netdisco ships by default with an anonymous full access guest, which cloudimg disables, and on the first boot of every instance a one shot service generates a random admin password, a fresh database password and a fresh SNMP community unique to that instance and writes the login to a file only the root user can read. The database listens only on loopback so it is never exposed to the network, the base is fully patched with unattended security upgrades enabled, and every deployment is paired with a step by step deploy guide and backed by 24/7 cloudimg support.

Common uses

  • Network device inventory
  • MAC and IP node location
  • Port and topology discovery

See it running

Real screenshots taken while testing this image against its deployment guide.

Netdisco on Ubuntu 24.04 LTS screenshot 1 Netdisco on Ubuntu 24.04 LTS screenshot 2 Netdisco on Ubuntu 24.04 LTS screenshot 3 Netdisco on Ubuntu 24.04 LTS screenshot 4