Tink vs tcpdump
tcpdump is a libpcap CLI that prints packets matching a BPF filter. It is not a mechanic. Tink installs in one command, watches the Linux host, explains what is wrong, and helps you fix it.
tcpdump prints packets. Tink answers “why is this VPS sick?”
Accidental sysadmins land on tcpdump because tcpdump -i eth0 port 80 shows frames without a dashboard. Then disk is at 91%, nginx dies, and last night's pcap does not say what to run. A filling /var is a Tink warning; it is not a tcpdump timestamp.
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 tcpdump if you already want a packet capture on an SSH session. Use Tink if you run Linux servers and want a mechanic.
| Feature | Tink | tcpdump |
|---|---|---|
| Setup time | 30 seconds (one curl | sh command) | apt/yum install tcpdump, then tcpdump -i eth0 port 80 every time traffic looks wrong |
| What you get | Working monitoring, diagnosis, and approved fixes | Packet lines: timestamps, hosts, ports, and flags, only while the capture is running |
| Pricing | Free (Scout) / $9 / $29 per machine per month | Open source. You still pay the person who SSHs in after the outage |
| Hidden costs | None — fully managed | Which interface, which BPF, pcap disk fill, and whether anyone was capturing when the flood started |
| Monitoring approach | Agent on the server — CPU, disk, services, logs, certs, ports | libpcap dump. tcpdump does not parse auth.log or propose a command |
| Configuration | None after install — heuristics and AI | Interface, snaplen, filter expression, and whether you left -w running in tmux |
| Plain-English diagnosis | Yes — AI explains root cause, impact, and fix | No — you read hex and flags yourself |
| Fix execution | Proposes and executes approved commands with an audit trail | Monitoring only — tcpdump cannot drop the flood, restart nginx, or rotate a cert |
| Alerting | Built-in across 8 channels | None by default — tcpdump is a live dump; paging is extra |
| Predictive alerts | Yes — disk fills in ~6 days, memory and CPU trends | Live packets only — tcpdump does not forecast fill time or a quiet NIC going bad later |
| SSH brute-force detection | Built-in — parses auth.log every scan | Not included — tcpdump does not read host auth.log or journald |
| Machine offline detection | Agent presence monitoring with multi-channel alerts | If the host is down you cannot SSH into tcpdump either |
| Public status page | Shareable URL with 90-day history | Not included — tcpdump has no customer-facing status page |
| Weekly fleet digest | Automated Monday digest + daily brief when issues are open | Not included — a packet dump 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 | SSH + tcpdump. No mechanic you text when /var filled |
| Learning curve | None — works after install | Low to launch; higher to map a SYN flood line to the process that filled the disk |
| Best for | Freelancers, small teams, accidental sysadmins (1-50 Linux servers) | Operators who already want a packet capture and will still SSH in when the box is sick |
When tcpdump is the right choice
Keep using tcpdump when you already want that exact job:
- Packet capture — you need BPF-filtered frames, not a fleet digest.
- Wire-oriented — tcptrack lists sockets; nethogs groups PIDs; tcpdump is the dump.
- No extra service — a package on the box, not a hub, SaaS, or Telegram bot.
- No conversation layer wanted — some operators prefer a CLI and will never use a mechanic.
The real cost of “just run tcpdump”
The package is easy to install. A working ops loop for five Linux boxes is not:
- A complete packet dump still means you SSH into the host and change the box by hand when it gets sick
- Host fill, nginx, certs, and SSH brute-force never appear unless you built extra checks
- A filling /var is a Tink disk warning on every scan — tcpdump stays a live dump until you are looking
- A single VPS with nobody logged in still needs a mechanic, not another SYN line
For a 5-server team, Tink Mechanic at $45/month is cheaper than the engineer who opens tcpdump after the outage, and every scan includes a diagnosis a quiet packet dump will not type.
No SSH homework. No silent host. One command install.
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