Sentinel
Nodes LLC · Fleet monitoring

Monitor every server.
One secure hub.

Sentinel combines per-server agents with a central Hub — live metrics, open ports, connection audits, alerts, and push enrollment for servers behind firewalls.

Open Fleet Dashboard
  • Real-timeWebSocket fleet view
  • Push modePrivate servers connect out
  • OTP loginNo passwords to manage
Sentinel Hub · Fleet
Online4
Alerts2
Servers5
Production API
CPU 23%RAM 61%12 ports
Staging (push)
CPU 8%RAM 44%8 ports
DR — awaiting enroll
Install script ready

Built for teams running Linux infrastructure, staging clusters, and hybrid cloud.

Everything you need to watch your fleet

From a single dashboard — health, network exposure, storage, and suspicious connections.

📡

Fleet dashboard

See all servers at a glance — CPU, memory, disk, latency, and alert counts with live WebSocket updates.

🔐

Push enrollment

Private or firewalled servers connect outbound to Hub. Download one installer script — no inbound ports required.

🧭

Open ports & sockets

Grouped listening ports and live connections with process names — spot unexpected exposure fast.

⚡

Smart alerts

CPU, memory, disk, connection spikes, and large logs — surfaced per server with recent history.

🛡️

Protected agents

Each agent dashboard requires its own access key. Hub stores credentials securely per server.

✉️

Email OTP auth

Sign up and sign in with a one-time code — no shared passwords across your organization.

Up and running in three steps

Add agents on your servers, connect them to Hub, and monitor from anywhere.

  1. 1

    Create your Hub account

    Register with email OTP on this page. Your fleet workspace is ready instantly.

  2. 2

    Install agents & enroll

    Run Sentinel on each server. For private hosts, download the Easy Installer from Hub and run one command.

  3. 3

    Monitor & respond

    Open the fleet dashboard, drill into server profiles, ports, and alerts — act before users notice downtime.

Security by default

  • Agent dashboards require per-server access keys
  • Hub authentication via time-limited email OTP
  • Enrollment tokens for push-only connectivity
  • API keys masked in fleet views; full keys only to account owners
sentinel_enrollment: connection_mode: push hub_push_ws: wss://…/hub/ws/agent agent: api_key: sk_…

One file. One command. Server connects out — not in.

Connect Plesk, cPanel, or VPS

Sentinel runs on Linux VPS or dedicated servers. Open Server Profile in Hub for step-by-step guides per panel.

🔷

Plesk

Upload the Easy Installer via Files, then run one command in SSH Terminal (VPS plans with SSH).

🟠

cPanel

File Manager upload + Terminal, or external SSH. Requires VPS/dedicated — not basic shared hosting.

🖥️

VPS / SSH

scp the installer, ssh in, run sudo bash install-sentinel-enroll.sh.

No SSH? Use the support-ticket template in Hub → Server Profile → Connect by hosting type.

Your data, protected by design

Sentinel is built for operators who care about security. Here is how we handle your information.

What we collect

  • Account: name and email for Hub access
  • Servers you add: hostnames, IPs, ports, and connection settings
  • Monitoring data: metrics, open ports, live connections, and alerts from your agents
  • Auth tokens: short-lived OTP codes and signed session tokens

What we do not do

  • No selling of personal data to third parties
  • No advertising trackers on the Sentinel platform
  • No storage of Hub passwords — login is email OTP only
  • No public exposure of your agent dashboards without your access key

How we protect you

  • HTTPS everywhere on sentinel.nodesllc.com
  • Per-server API keys and enrollment tokens, masked in fleet views
  • Push enrollment so private servers connect outbound — no inbound holes required
  • Account isolation — your servers and snapshots are tied to your Hub account only

Your control

  • Remove servers from Hub at any time
  • Regenerate enrollment files and agent keys if compromised
  • Agent metrics on each server roll off after a configurable retention window
  • Contact us for account or data requests — info@nodesllc.com

Full details in our Privacy Policy. By creating an account you agree to how we process data described there.

Ready to watch your infrastructure?

Join Sentinel Hub and bring your first server online in minutes.