Port 1192 belongs to the registered ports range (1024-49151). It was officially assigned by IANA in November 2004 to Gregory Hostettler for "caids sensors channel"—a communication channel for Computer Aided Intrusion Detection System sensors.1
Both TCP and UDP protocols are registered under the same name, suggesting the service needed flexibility in how sensor nodes communicated.
What the Registered Ports Range Means
The registered ports range exists for services that don't need the prominence of well-known ports (0-1023) but still want an official assignment from IANA. Anyone can apply to register a port for their service.
The registry is honest: here's who requested it, here's when, here's what it's for. But registration doesn't guarantee adoption. It just means someone cared enough to claim the number.
The Reality of Port 1192
Twenty years after registration, port 1192 is rarely seen in production networks. CAIDS was likely a specific intrusion detection implementation that either never gained widespread adoption or has since been replaced by other systems.
This is common in the registered range. A developer builds a service, properly registers a port number, deploys it in their environment—and then the service remains localized, never achieving broader use. The port number sits there, officially claimed, while the actual service fades into history.
Checking What's Listening
Even though port 1192 has an official registration, that doesn't mean it's what you'll find if something is actually listening there. Ports can be used by anything, regardless of their official assignment.
To check what's listening on port 1192:
On Linux or macOS:
On Windows:
If you find something listening on this port and you didn't install CAIDS sensors, it's worth investigating. Uncommon ports are sometimes chosen by malware precisely because they're unlikely to be monitored.
Why Unassigned and Obscure Registered Ports Matter
The registered ports range is a middle ground—not critical infrastructure like port 80 or 443, but not the complete free-for-all of dynamic ports either. These ports represent intentions: someone built something, registered it properly, and deployed it somewhere.
Some registered ports become widely adopted. Most don't. But the registry preserves the record—a historical document of what people tried to build, even if it didn't become part of the Internet's permanent infrastructure.
Port 1192 is one of thousands of these quiet registrations. Claimed, documented, and waiting.
Related Ports
- Port 1194 — OpenVPN's default port, two numbers away but worlds apart in actual usage
- Ports 1024-49151 — The full registered ports range where 1192 lives
Frequently Asked Questions
Adakah halaman ini membantu?