Connect your plant to the cloud without opening a single port
vNode uses reverse connectivity, outbound-only connections, encrypted end to end with TLS 1.3. So there’s nothing new for IT to approve, and nothing new exposed to attack.
- No credit card
- No coding
- Live and running in minutes
TRUSTED BY INDUSTRIAL TEAMS WORLDWIDE
Global support — offices and support lines in the USA, UK, Spain, Costa Rica, France and Mexico.
THE PROBLEM
The firewall isn't the problem. It's the excuse.
Every time you propose connecting the plant to IT or the cloud, the project stalls in the same place, and it’s never the first time.
- Request denied. IT rejects the port-opening request on policy grounds, no timeline for reconsideration.
- Months of review. A week of integration work turns into a quarter of committees and sign-offs.
- Data stays locked. Cloud, BI, and AI initiatives wait on data that never leaves the plant floor.
REVERSE CONNECTION ARCHITECTURE
OT Network
PLC · DCS · RTU
vNode
TLS 1.3
↓ Firewall · 0 inbound ↓
Cloud / IT
Azure · AWS · SQL
Traffic only ever flows outbound. Nothing for IT to approve.
THE SOLUTION
Four layers of security. Zero ports opened.
Reverse connection, TLS 1.3 encryption, certificate or LDAP authentication, and data-diode isolation. Four independent layers, not one single barrier.
Reverse Connection
vNode connects outbound only — the same way your browser reaches a website. No inbound rule to open, no new attack surface, nothing for IT to sign off on.
TLS 1.3 encryption
Every connection encrypted end to end, with AEAD and ECDH key exchange.
Certificate + LDAP authentication
Digital certificates, tag-based permissions, or straight into Active Directory.
Data Diode ready
For zones where outbound-only still isn't strict enough, vNode supports data diode connections — hardware-enforced one-way flow.
USE CASE · SECURE MULTI-SITE ARCHITECTURE
Moving data between plants? Same rule applies.
Run vNode in the DMZ and exchange data site-to-site. Still without opening a single inbound port.
Plant A
DMZ Module · vNode
Plant B
HOW IT WORKS
A software gateway inside your OT network. It sends data out — so IT never has to let anything in.
vNode is not a firewall change, a VPN, or a new appliance for IT to secure. It’s software you install on a PC or industrial box already inside the plant network. It reads your PLC and SCADA data over OPC UA, Modbus, DNP3, or Siemens — then pushes it out through a connection your firewall already allows outbound. No exception request. No committee.
1
Install
Deploy vNode on Windows, Linux, or ARM — on hardware already inside your OT network. No new appliance, no change to network topology.
2
Connect
vNode opens an outbound-only, TLS 1.3-encrypted connection — the same kind of traffic your firewall already allows. Nothing for IT to flag, because nothing new is exposed.
3
Flow
Your OT data lands where your team decided — Azure, AWS, Google Cloud, SQL, MongoDB, MQTT, REST API — without ever opening a path back into the plant.
CUSTOMER STORY
Source: vNode Success Story — “vNode Unlocks Connectivity Access at Jebel Ali Power Station in UAE” (Dubai Electricity & Water Authority)
Your next integration project doesn't have to wait on IT.
Start your free trial and connect your plant to the cloud — encrypted, outbound-only, without opening a single port.
Try it on your own network
FAQ
Does vNode need any firewall ports opened to connect OT to the cloud?
No. vNode’s Reverse Connection is always initiated from inside the OT network outward, the same direction a browser request already takes. No inbound rule needs to be opened on the OT firewall.
How is the connection encrypted?
End-to-end with TLS 1.3, using AEAD and ECDH key exchange. As of v1.22, vNode also removes legacy TLS and legacy vNode Links support, and uses 4096-bit certificates with ChaCha20-Poly1305 encryption.
What authentication methods does vNode support?
Certificate-based authentication, tag-level permissions, and direct LDAP/Active Directory integration. Since v1.22, vNode also includes native multi-factor authentication (2FA) via TOTP, plus stricter password policies.
Can vNode enforce strictly one-way data flow for high-security zones?
Yes. For zones where outbound-only still isn’t strict enough, vNode supports Data Diode connections, providing hardware-enforced one-way flow.
Which industrial protocols can vNode read without opening additional ports?
OPC UA, OPC DA, Modbus (TCP/RTU), DNP3, Siemens, Allen-Bradley, Mitsubishi, Yokogawa, GE, Omron, Delta, Marchesini and Mettler Toledo, read locally inside the OT network and sent out through the same Reverse Connection.
Where do I find technical documentation?
You can access the vNode User Manual or download the latest software version here.