OpenNetAdmin vs Subnetly

OpenNetAdmin is a free, open-source, self-hosted IP address management system for tracking network attributes and supporting configuration work. Its inventory can include DNS names, IP addresses, subnets, MAC addresses, IPv6 addresses, VLANs, DHCP pools, NAT, and custom attributes. Administrators can manage records through an AJAX-enabled web interface or use the command-line interface for scripting and bulk work. The project describes the inventory as manually maintained and authoritative, with discovery tools helping to populate and audit it. Templates and backend processes can generate DNS, DHCP, and router configurations, including for distributed servers. Other capabilities include overlapping DNS views, plugins, LDAP and local authentication, and configuration archives with syntax-highlighted comparisons. BIND-DLZ can query the ONA database directly, and host actions can link to applications such as Splunk, Nagios, Cacti, and Base. The core is released under GPLv2.0, though some add-ons may have separate licenses. The features page says multiple database backends are possible, but only MySQL is tested.

Subnetly is a hybrid SaaS DDI platform for DNS, DHCP, IP address management, network discovery, and network visibility. Its dashboard records IP use and ownership, identifies conflicts and orphaned addresses, and can export QBR data. Local agents manage authoritative DNS zones and DHCP scopes, with a SaaS console coordinating records and configurations. Agents scan active network segments using ARP, SNMP, and ICMP to build a hardware asset registry. Subnetly says its AI insights can identify capacity risks and configuration gaps as well as address issues. Deployment options include Docker, Kubernetes/Helm, Windows Server, and a Linux daemon. The company says agents communicate outbound over HTTPS or TLS without open inbound ports or VPN tunnels. REST APIs and monitoring webhooks support third-party automation, though access varies by paid tier. MSP controls cover customer and site separation, technician roles, and audit records. A free plan is available; paid plans start at $49 a month. Starter and Pro include 14-day trials, Business has a 21-day trial, and signup requires no credit card.