Cacti is the classic free graphing tool. It polls SNMP, stores RRDs, and draws pretty pictures. It is not a mechanic. Tink installs in one command, watches the Linux server, explains what is wrong, and helps you fix it.
Accidental sysadmins often land on Cacti because it is free and every older ops blog still mentions it. When nginx is down, the disk will fill in six days, or SSH is being brute-forced, Cacti stays quiet unless you already built that graph, installed thold, and opened SNMP on the host.
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 Cacti if you live in custom SNMP graphs. Use Tink if you run Linux servers and want a mechanic.
| Feature | Tink | Cacti |
|---|---|---|
| Setup time | 30 seconds (one curl | sh command) | Hours — LAMP stack, MySQL, RRDtool, cron, Spine poller, SNMP, device templates |
| What you get | Working monitoring, diagnosis, and approved fixes | Round-robin graphs, device templates, and optional thold alerts |
| Pricing | Free (Scout) / $9 / $29 per machine per month | Free (GPL) — you pay the poller host, MySQL, RRD disk, and the person who keeps PHP alive |
| Hidden costs | None — fully managed | A poller VM, Spine tuning, template debugging, and SNMP on every box |
| Monitoring approach | Agent on the server — CPU, disk, services, logs, certs, ports | SNMP polling into RRDtool from a central Cacti host |
| Configuration | None after install — heuristics and AI | Add devices, map data sources, pick graph templates, install plugins |
| Plain-English diagnosis | Yes — AI explains root cause, impact, and fix | No — a graph and, if you installed thold, a threshold fire |
| Fix execution | Proposes and executes approved commands with an audit trail | Monitoring only — you still SSH in |
| Alerting | Built-in across 8 channels | Not core — install and tune the thold plugin |
| Predictive alerts | Yes — disk fills in ~6 days, memory and CPU trends | No — a threshold is ok or crossed |
| SSH brute-force detection | Built-in — parses auth.log every scan | Not included — Cacti graphs SNMP, not auth logs |
| Machine offline detection | Agent presence monitoring with multi-channel alerts | Device down if the poller cannot reach SNMP |
| Public status page | Shareable URL with 90-day history | Internal graph UI — not a customer-facing status page |
| Weekly fleet digest | Automated Monday digest + daily brief when issues are open | Not included |
| On-call tracking | Built-in /oncall command + incident acknowledgment | Not included — add another tool |
| Conversation interface | Telegram, WhatsApp, web dashboard, CLI | Web UI and optional email from thold |
| Learning curve | None — works after install | Steep — data sources, graph templates, CDEF, Spine, and plugin versions |
| Best for | Freelancers, small teams, accidental sysadmins (1-50 Linux servers) | Network teams that want custom SNMP graphs across many devices |
Keep Cacti when you already want that exact job:
The download is free. A working ops loop is not:
For a 5-server team, Tink Mechanic at $45/month is cheaper than the first weekend spent installing PHP, MySQL, RRDtool, and Spine, and every scan includes a diagnosis Cacti will never write.
No SNMP communities. No Spine poller. One command install.
Try Tink free — one command installAlso compare: Tink vs LibreNMS · Tink vs Zabbix · Tink vs Nagios