By Paul Snyman · Published 2026-04-14 · 3 min read

Nessus alternative for Mac homelabs

Tenable Nessus is genuinely great. It's also thousands of dollars per year, runs a Java web UI on a box you have to provision, and expects you to know the difference between a credentialed and uncredentialed scan before you click Go. It's built for people running thousands of hosts with a compliance binder. That's not you.

If your fleet is twenty hosts, ten hosts, or - let's be honest - six hosts, Nessus is a Mercedes for a one-block commute. You want a bicycle.

What a right-sized homelab scanner looks like

1. Mac-native, not a server appliance. The tool lives on the machine you already sit in front of. No provisioning a scanner VM. No reserving a port on the LAN. No second Nessus license when you reformat your laptop.
2. Agentless via SSH. No daemon on every target. No "install this agent" story for the Raspberry Pi that runs Pi-hole. You already SSH into these hosts when you change their configs - Noxen reads the same data the same way.
3. Homelab money, not enterprise money. Both are subscriptions - a CVE feed is a daily cost, so it is billed like one - but Nessus Professional costs thousands of dollars a year and Noxen is $12 a month. That is the difference between a purchase order and a line item you stop noticing.
4. Reads your ~/.ssh/config. You already have a host list. Noxen imports it in one click.
5. Diff view over raw findings. The Nessus report dumps every finding every time. What you actually want to see is what changed since yesterday. That's the default dashboard.
6. Compliance mapping, not compliance audits. Noxen maps findings to CIS Controls v8, SOC 2 and ISO 27001 control references, as supporting evidence for an audit you already run. It has no audit templates and no PCI scanning. If you need those, get Nessus, or Qualys, or Rapid7.

What Noxen actually detects

• CVEs in installed packages (dpkg, rpm), matched via CPE 2.3 against a signed feed sourced from NVD + OSV.
• Weak SSH ciphers, deprecated KEX, permissive sshd_config.
• TLS certs approaching expiry, weak signature algorithms (SHA-1, small RSA), deprecated TLS versions, CBC-mode ciphers.
• Missing HTTP security headers (CSP, HSTS, X-Frame-Options, Referrer-Policy).
• Exposed admin surfaces - phpMyAdmin, Grafana, Portainer, Kibana, unauthenticated Redis / Mongo / Elasticsearch, .git/config leaks, .env leaks.
• Open TCP ports from a 40-port shortlist of the services homelabs actually run.

What Noxen will not do

• Test default credentials against found admin panels. That's a liability; Noxen flags, it doesn't authenticate.
• Perform exploit attempts. If you want Nuclei's active exploit templates, use Nuclei.
• Stand in for your auditor. The compliance mapping is an evidence supplement, never the primary evidence.

Pricing, honestly

$12/month for Noxen, or $120/year - 50 hosts, scheduled scans, the daily signed CVE feed, webhooks, SIEM export, compliance mapping and custom checks. Everything the app does is in that one plan; there is no higher tier holding a feature back. Three hosts are free forever. An MSP / Team tier with multi-tenant separation is in design and is not on sale yet.

If you price that against Nessus Professional at thousands of dollars per year, or HostedScan at tens to low-hundreds per month, or Intruder at low hundreds per month - the gap isn't an accident. Noxen is deliberately cheaper because it's deliberately smaller.

For a fuller side-by-side, including the cases where Nessus is the better pick, see Noxen vs Tenable Nessus.