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Managing On-Premise Agents
An on-premise agent is a secure tunnel between your own network and integrator.io. You install a small piece of Celigo software on a Windows or Linux host inside your network; it dials outbound to integrator.io and holds the connection open so the platform can send work back through it. Because the agent reaches out to Celigo, you do not open inbound firewall ports or whitelist Celigo IP addresses to let the cloud reach private systems behind your firewall.
There are two things sharing the name -- keep them apart:
- The installed software -- the agent daemon running on a host inside your network. It maintains the tunnel and does the reaching.
- The resource -- the registration of that daemon in integrator.io: a , , and pairing/health metadata. This is what you manage via the API and CLI.
Concerns when managing an on-premise agent:
- Reachability -- giving Celigo a path to systems that have no public endpoint (private DBs, file shares, internal apps)
- Pairing -- installing the software and configuring it with the agent's to bring the tunnel up
- Health -- heartbeats determine ; a stopped host or service breaks every connection routed through the agent
- Token lifecycle -- rotating the sensitive (which authorizes a tunnel into your network) on exposure or on schedule
Referenced by connections via
.
On-Premise Agent vs Stack vs AI Agent
The word "agent" is overloaded in Celigo. An on-premise agent is none of the others:
| Term | What it is | About |
|---|
| On-premise agent () | Network tunnel daemon installed inside your network | Connectivity -- reach private systems behind your firewall |
| Stack | Runs your extension code (hooks/wrappers) on your own server or AWS Lambda | Compute -- run your custom code |
| AI agent () | LLM processor that classifies or transforms records inside a flow | AI processing of records |
Smell test: if it is about reaching a system on a private network, it is an on-premise agent. If it is about running your custom code, that is a stack. If it is about an LLM doing work on records, that is an AI agent. A single flow can use both an agent (to reach a private database) and a stack (to run a custom hook). When a request just says "the agent," confirm which one is meant before acting.
Quick Reference
Do You Need an On-Premise Agent?
The deciding question: is the system reachable from the public internet, or only from inside your network?
| Target system | Public endpoint? | Agent needed? |
|---|
| Public SaaS API (Salesforce, Shopify, Stripe, public REST) | Yes | No -- Celigo's cloud connects directly |
| Cloud database with a public endpoint | Yes | No |
| On-prem / private database (SQL Server, Postgres) with no public listener | No | Yes |
| Oracle database | -- | Yes -- Oracle runs in agent mode only |
| Local host directory or mounted network file share | No | Yes |
| Internal-only application (including JDBC-accessible systems) | No | Yes |
Minimum Required Fields
Creating an agent resource needs at minimum:
.
Connections That Route Through an Agent
A connection that needs private-network or filesystem access sets
on the connection object. The agent supplies reachability; the connection supplies the target system's credentials and config.
| Connection | | Notes |
|---|
| Required | Local/network file access always needs an agent |
| ( / ) | Required | POST fails 422 without it |
| -- Oracle | Required | Oracle is agent-mode only; even a placeholder connection needs a real |
| -- on-premise instance | Required | Set for a private (non-cloud) instance |
Wiring
onto a connection is a connection-configuration task -- see
configuring-connections.
Health & Metadata Fields
These are server-managed (read-only) on the response -- you do not set them:
| Field | Meaning |
|---|
| Sensitive pairing token generated on create; reconfigure the installed agent when it changes |
| Timestamp of the last heartbeat received from the installed agent |
| Derived from heartbeats -- when heartbeats stop (host down, service stopped, network blip) |
| Agent software version reported by the host |
| Runtime/host details reported by the installed agent |
Related Skills
- configuring-connections > How to Build a Connection -- setting on filesystem, JDBC, Oracle, and on-prem MongoDB connections
- managing-stacks -- the compute counterpart; use a stack to run custom code, an agent to reach private systems
- configuring-ai-agents -- the AI agent (LLM processor), a different resource despite the shared name
- troubleshooting-flows > Diagnostic Workflow -- diagnosing flow failures caused by an offline agent
- getting-started > Which Skill to Use -- orientation across resource types
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How to Set Up an On-Premise Agent
1. Confirm you actually need one
Only when the target system is not reachable from the public internet (see
Do You Need an On-Premise Agent?). Public SaaS APIs and cloud databases with public endpoints need no agent.
2. Check for an existing agent
A single agent can back many connections -- every flow that reaches systems on that network can route through it. Reuse before creating:
bash
# List all on-premise agents
celigo agents list
# Search the account
celigo account search "agent"
celigo account search "<network location or data center name>"
3. Create the agent resource
Create the registration first. The response includes a sensitive
used to pair the installed software -- capture it now.
bash
# Create a new agent registration
echo '{"name":"On-Prem DC1 - Oracle & File Share","description":"Tunnel for the datacenter-1 private network"}' | celigo agents create
4. Install the agent software on a host inside the network
Download and install the Celigo agent software on a Windows or Linux host that can reach the private systems. This step happens on the host and through the integrator.io UI (which provides the installer download) -- not via the CLI.
5. Pair the installed agent with the access token
Configure the installed agent with the
from step 3. This pairs the daemon to the
resource and brings the outbound tunnel up. Heartbeats begin flowing once it connects.
6. Verify the agent is online
bash
# Confirm the resource shows heartbeats and is not offline
celigo agents get <id>
Check that
is
and
is recent.
and
confirm what is running on the host.
7. Reference the agent from connections
On each connection that needs private-network access, set
to this agent's
. This applies to
(required),
agent/activedirectory, Oracle
, and on-premise
connections. See
configuring-connections. For Oracle, install and pair the agent
before creating the connection -- Oracle rejects even a placeholder connection without a real
.
Rotating the Access Token
Rotate when the token may be exposed or on a security schedule. Rotation
regenerates the and invalidates the previous one, so the installed agent must be reconfigured with the new token and will reconnect only after re-pairing -- expect a brief disconnect.
Rotation and installer download are platform actions (integrator.io UI / API), not CLI CRUD operations. Plan a rotation for a quiet window and have access to the host so the new token can be applied promptly. Treat the token like any credential.
Running More Than One Agent
Default to one agent per network location. Reasons to run more are about topology and resilience, not raw volume:
- Segmentation -- an agent in each network segment or data center it must reach.
- Availability -- a second agent so one host going down does not take all private-system connectivity with it.
CLI Commands
bash
# CRUD
celigo agents list
celigo agents get <id>
celigo agents create < agent.json
celigo agents update <id> < agent.json
celigo agents delete <id> [-y]
# Discovery
celigo account search "<keyword>"
Note: only
and
are writable. Installing/pairing the agent software and rotating the
are done through the integrator.io UI on the host, not the CLI.
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Pre-Submit Checklist
Before creating or wiring up an on-premise agent, verify:
Gotchas
- "Agent" is overloaded. An on-premise agent (, connectivity) is not a stack (compute) and not an AI agent (, LLM processing). Confirm which one is meant before acting.
- The tunnel is outbound-only. The agent dials out to integrator.io; you never open inbound firewall ports or whitelist Celigo IPs to reach private systems.
- The resource is not the software. Creating the resource only registers it and mints a token. Nothing connects until you install the software on a host and pair it with the .
- Agent offline breaks dependent flows -- fix the agent, not the flow. When a flow to a private system fails and credentials look fine, check whether the agent is (host down, service stopped, network blip). Bringing the agent back online recovers every connection routed through it.
- Rotating the token forces a re-pair. Rotation invalidates the old token; the installed agent must be reconfigured with the new one and reconnects only after re-pairing. Rotate during a quiet window.
- The is a credential. It authorizes a tunnel into your network. Do not commit or share it; rotate it if it may have been exposed.
- Oracle is agent-mode only. Oracle connections always require a real -- you cannot create even a placeholder Oracle connection without an installed agent first.
- One agent can serve many connections. Add more agents for network segmentation or availability, not just for throughput.
Common Errors
| Error | Cause | Fix |
|---|
| Agent shows | Heartbeats stopped -- host down, service stopped, or network interruption | Restart the agent software on the host; confirm outbound connectivity to integrator.io, then re-check |
| Flows to a private system suddenly fail; credentials fine | The shared agent is offline | Check ; bring the agent back online rather than editing each connection |
| Installed agent will not connect after rotation | Old, invalidated token still configured on the host | Reconfigure the agent with the new and let it re-pair |
| creating an Oracle / JDBC / filesystem connection -- missing | The connection type requires an agent but none is referenced | Install and pair an agent, then set on the connection |
| Connection routed through agent times out () | Agent host cannot reach the target system on the private network | Verify the host can reach the target's host/port; check internal firewall/routing between the agent host and the system |
| on agent get/update | Wrong agent ID or the agent was deleted | Verify the ID with |