For your director

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Forward one page: what it replaces, $499 once per engineer, what security will ask, and the payback with your own numbers.

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To: Director · Re: SubnetSlinger Pro

The one-page case

Cost: $499 once per engineer. No subscription, every future version included, new major versions too. Try every tool free for 30 days first.
Proof: Pricing · 14-day refund, see Support
Replaces: Tool hunts, lab servers, hand-tracked certificate expiry, device-by-device show commands.
Proof: What it replaces · the tools · Docs
Payback: Your hours × your rate. The calculator does the math: 2 hours/week × $75/h → pays back in 3.3 weeks.
Proof: The calculator below
Risk: Runs locally. No telemetry: the only call it makes on its own is a license check. AI off by default. Signed downloads.
Proof: Trust · Privacy · Download and verify steps

At a glance

What it is: The network engineer's toolkit: 60+ client-side and server-side tools in one desktop app.
Platforms: Windows (Microsoft Store), macOS and Linux. One license covers all three. Free companion app on Android.
Try first: 30-day free Pro trial of every tool after a free sign-in, no card. Nine tools stay free forever, no account.
How to pay: Buy Pro in the app (Stripe checkout opens in your browser), or ask for an invoice or purchase order by email.
Refunds: 14 days from purchase.
Several engineers: Team and volume licensing is available on request: get in touch.
Vendor: AISMITH PDX LLC · Oregon, USA · sheriff@subnetslinger.com

What it replaces

The jobs it takes off an engineer's plate:

Finding and installing ten different tools
Every tool an engineer reaches for, installed and ready in minutes, in one app, instead of a folder of downloads and scripts to rebuild on every new laptop.
How the tools are counted →
Hunting for a tool mid-incident
Path ping, Discovery, Console, SNMP and packet capture are already on the machine when the live issue hits.
What's in the toolkit →
Standing up lab servers to test a service
Ten server hosts: Syslog, TFTP, SNMP traps, RADIUS, TACACS+, DHCP, DNS, HTTP and FTP built in, plus SFTP/SCP receive through the computer's own OpenSSH server.
Local servers →
Tracking certificate expiry by hand
Cert fleet keeps a saved list of your hosts (or your customers') and sweeps it in one click. Anything at 30 days or less, or 7 days or less, is flagged before it becomes an outage.
SSL / TLS and Cert fleet →
Running show commands device by device
Multi-host run sends the same command to many devices over SSH and compares the answers side by side. Read-only by default.
Multi-host run →
Handover notes written from memory
Findings go into the Case you're working as you go; the End-of-shift report hands the day over in one file, with secrets masked.
Activity and End-of-shift report →

What security and IT will ask

Does it phone home?: No telemetry, no analytics, no usage tracking. If you're signed in, the app checks its license when you open Account and in a few launch cases; it sends only the sign-in token, no device or network details. Pro keeps working offline for 30 days after the last successful check. Opening the AI Deputy with a cloud provider also fetches the public model list (subnetslinger.com/models.json). Everything else is a tool you ran. Every outside host is on the firewall allowlist.
Does it send our network data anywhere?: Not to us, ever: every tool runs on the engineer's computer and results stay there. A few tools reach a public service when you run them because that is their job (public IP, WHOIS, speed test); they're listed on the Privacy page. The AI Deputy and Posse are off by default. If you turn them on, the question and tool output go straight to the provider you choose, on your own key, or stay on a local Ollama model. Secret-shaped text is stripped first; that's a pattern match, not a guarantee.
Does it need admin rights?: Not for the core toolkit: it runs on a clean install with no admin and no extra software, and Windows installs from the Microsoft Store. A few optional add-ons need admin once: the Npcap packet-capture driver and OpenSSH Server on Windows, and on Linux the installer grants capture rights to a helper only, so the app stays unprivileged. On Linux, the DNS and DHCP server hosts need their real low ports. Details: Setup & requirements.
Where is the data stored?: On the engineer's machine. Windows: %APPDATA%\SubnetSlinger and Documents\SubnetSlinger. Linux: ~/.config/SubnetSlinger and ~/Documents/SubnetSlinger. macOS: in the user's account, with Vault secrets in the Mac's Keychain. The Vault is AES-256-GCM. There's no cloud sync; a backup is a file you move yourself. For the license we hold only an email, a random account ID, the tier and trial dates, a purchase record and a sign-in session record (IP and app or browser): what we collect.
How are downloads signed?: Windows installs from the Microsoft Store, which signs the package. macOS is signed with an Apple Developer ID and notarized by Apple. Linux is GPG-signed with an offline key and ships signed checksums and an SBOM; the macOS download has a checksum and GPG signature too. Copy-ready verify steps, and the supply-chain detail.
What about MCP (letting an AI app call its tools)?: It runs only when an AI app on the same computer starts it, and offers 17 read-only diagnostics with secrets masked; requests are logged locally, never sent to us. On macOS it's off by default and needs Pro. On Windows and Linux 1.3 it has no on/off switch or Pro check, so leave it unconfigured if you don't use it; from version 1.4 it's off until you turn it on, needs Pro, and reaches only the hosts you allow. MCP on the Privacy page.
Who do we contact about security?: sheriff@subnetslinger.com. Vulnerability reports are acknowledged within 2 business days: how to report one.

Payback, with your numbers

These start as example numbers. Put in your own. The math runs in your browser; nothing is sent or saved.

Hours saved per week0 to 40Loaded cost per hour (USD)0 to 1,000Working weeks a year1 to 52

License

$499

once

Time saved

$150

per week

Pays back in

3.3 weeks

First year

$6,401

saved after the license

Forward this

It fills in from your numbers above. Edit the bracketed parts, then copy it or open it as a draft. Nothing is sent until you press send in your own email app.

Subject: Sign-off request: SubnetSlinger Pro ($499 one-time)

Hi [Director's name],

I'd like sign-off to buy a SubnetSlinger Pro license for myself: $499, paid once. No subscription or annual maintenance, and every future version is included, new major versions too. There's a 14-day refund.

What it covers: the tools I'd otherwise hunt down and install one by one, lab servers for testing (Syslog, TFTP, SNMP traps, RADIUS, TACACS+, DHCP, DNS and more), certificate-expiry checks across our hosts, and running the same show command across many devices at once (read-only by default).

Payback: I expect it to save me about 2 hours a week. At $75 an hour that's $150 a week, so it pays for itself in about 3.3 weeks (17 working days). Over 46 working weeks that's $6,900 of time, or $6,401 after the license.

Risk: it runs on my machine, with no server to stand up. The app sends no telemetry; the only call it makes on its own is a license check. The AI features are off by default, and if we ever use them they run on our own key or a local model. Windows installs from the Microsoft Store; the macOS and Linux downloads are signed and can be verified.

The one-page case: https://subnetslinger.com/for-your-director
Security and privacy detail: https://subnetslinger.com/trust and https://subnetslinger.com/privacy

Thanks,
[Your name]

Open as a draft in your email app

Questions before you buy?

Invoices, purchase orders, team licensing or a security questionnaire: email sheriff@subnetslinger.com. You'll hear back from the engineer who builds it, usually within one business day (Pacific Time).

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The Network Engineer's Toolkit · Windows · macOS · Linux · free companion on Android