Tink vs OPNsense
OPNsense is a FreeBSD firewall and router. It sits on the edge. It is not a mechanic. Tink installs in one command, watches the Linux host, explains what is wrong, and helps you fix it.
OPNsense filters WAN. Tink answers “why is this VPS sick?”
Accidental sysadmins land on OPNsense because the plugin UI looks newer than pfSense. Then disk is at 91% on web-1, nginx dies, and last night's WAN allow list does not say what to run. A filling /var is a Tink warning; it is not an OPNsense floating rule.
Tink is the other job: detect the issue on the machine, say why it happened in plain English, propose the command, and run it only after you approve. Keep using OPNsense if you already want an edge firewall. Use Tink if you run Linux servers and want a mechanic. They can sit in the same shop.
| Feature | Tink | OPNsense |
|---|---|---|
| Setup time | 30 seconds (one curl | sh command) | Install OPNsense on dedicated hardware or a VM, assign WAN/LAN, load plugins, then still SSH into every Linux host when it is sick |
| What you get | Working monitoring, diagnosis, and approved fixes | FreeBSD firewall/router OS — NAT, VPN, plugins, traffic graphs. Not a fleet mechanic for the servers behind it |
| Pricing | Free (Scout) / $9 / $29 per machine per month | Open source. Business support is extra. You still pay the person who SSHs into nginx after the outage |
| Hidden costs | None — fully managed | A second box (or VM) for the edge, plugin drift, firmware cadence, and whether anyone watched /var on the app servers |
| Monitoring approach | Agent on the server — CPU, disk, services, logs, certs, ports | Edge traffic and OPNsense itself. It does not watch fill time or propose a restart on the VPS behind the WAN |
| Configuration | None after install — heuristics and AI | Interfaces, aliases, NAT, OpenVPN/WireGuard, plugins, and whether last month's firmware still matches the diagram |
| Plain-English diagnosis | Yes — AI explains root cause, impact, and fix | No — you read OPNsense logs and then SSH into the Linux host anyway |
| Fix execution | Proposes and executes approved commands with an audit trail | Changes firewall/NAT/VPN only — OPNsense cannot restart nginx, free disk, or rotate a cert on the app server |
| Alerting | Built-in across 8 channels | Optional plugins and email. A silent WAN drop is not a Telegram diagnosis of the Linux box |
| Predictive alerts | Yes — disk fills in ~6 days, memory and CPU trends | Live edge graphs only — OPNsense does not forecast fill time on the hosts behind it |
| Firewall / port exposure | Built-in — warns when the host firewall is inactive or dangerous DB ports listen | Yes for WAN/LAN — that is the job. It still will not say Redis is bound to 0.0.0.0 on web-1 |
| Machine offline detection | Agent presence monitoring with multi-channel alerts | If a Linux host is down behind the LAN, OPNsense still shows the WAN as up |
| Public status page | Shareable URL with 90-day history | Not included — OPNsense has no customer-facing status page for your app fleet |
| Weekly fleet digest | Automated Monday digest + daily brief when issues are open | Not included — a firewall log is not a plain-English fleet narrative |
| On-call tracking | Built-in /oncall command + incident acknowledgment | Not included — wire something else into PagerDuty |
| Conversation interface | Telegram, WhatsApp, web dashboard, CLI | Web UI + SSH. No mechanic you text when /var filled on the VPS |
| Learning curve | None — works after install | Low to allow 443 on WAN; higher to keep plugins, NAT, VPN, and firmware honest |
| Best for | Freelancers, small teams, accidental sysadmins (1-50 Linux servers) | Operators who already want an OPNsense edge box and will still SSH into every Linux host when it is sick |
When OPNsense is the right choice
Keep using OPNsense when you already want that exact job:
- Edge firewall / router — WAN/LAN, NAT, VPN, and plugins on dedicated hardware, not a fleet digest.
- Network appliance — OPNsense is the perimeter; it is not a mechanic for the Linux hosts behind it.
- On-prem routing — site-to-site VPN and multi-WAN failover that a $9 agent will not replace.
- No conversation layer wanted — some operators prefer the OPNsense UI and will never use a mechanic.
The real cost of “just put OPNsense in front”
The edge box is cheap to stand up. A working ops loop for five Linux boxes is not:
- A complete WAN allow list still means you SSH into each host and change the box by hand when it gets sick
- Host fill, nginx, certs, and a quiet agent never appear unless you built extra checks on the Linux side
- A filling /var is a Tink disk warning on every scan — OPNsense stays an edge graph until you are looking
- A single VPS with nobody logged in still needs a mechanic, not another LAN interface
For a 5-server team, Tink Mechanic at $45/month is cheaper than the engineer who opens OPNsense logs after the outage, and every scan includes a diagnosis a quiet firewall will not type.
No SSH homework. No silent host. One command install.
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