Port 8688OpenRemote Controller HTTP/REST

TCP 8688 is assigned to the OpenRemote Controller's HTTP/REST interface for communicating with an OpenRemote controller.

inWeb Services IoT

transport: tcp
in transit: cleartext
assignment: official
risk: 5/10
lookups: 0

also known as openremote-ctrl, OpenRemote Controller REST API

Technical Details

what runs on :8688

The IANA assignment identifies TCP port 8688 as the OpenRemote Controller HTTP/REST interface. It uses HTTP request/response traffic with REST-style resources; the exact endpoints and API behavior depend on the OpenRemote version and deployment. The assignment specifies HTTP, not HTTPS, so do not assume traffic is encrypted on this port.

Security Information

exposure of :8688

risk score

5/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

web services averages 3.2 across 222 ports — this one sits 1.8 above.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp

every listening transport is another surface to filter at the edge

security overview

A reachable controller API may expose operations or data related to the devices and automation managed by that deployment. Because the assigned protocol is HTTP, traffic is not encrypted by default; keep the interface on a trusted network or protect it with appropriate access controls and a TLS-terminating proxy. The port is uncommon in internet-wide scan data, and that is not evidence that a particular deployment is safe to expose.

Record

iana registry entry

port: :8688
service: OpenRemote Controller HTTP/REST
transport: TCP
encryption: cleartext
assignment: iana registered
risk: 5/10caution
category: Web Services IoT
usage: This assignment is for the HTTP/REST interface of an OpenRemote Controller, part of the OpenRemote platform for building and integrating device-control systems. It is an uncommon service; an open port here may be a controller API rather than a general-purpose web server.
lookups: 0rank 993
added: 2026-10-14
updated: 2026-10-14
references: IANA service name registry — port 8688

Something wrong?

This record is maintained by the engineers who use port 8688. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-10-14.

01edit any field on a page of its own
02a model checks it for accuracy and spam
03clean and confident goes live immediately

edit this record →back to the registry

Related Ports

all 222 in web services →

the 8 most looked-up other ports in web services — 222 ports carry that label.

port	service	proto	category	risk	views
:8888	Sun Answerbook & Alt HTTP	TCP	Web Services	caution	123.9k
:8000	Intel Remote Desktop / Alternate HTTP Port	TCP	Web Services	safe	84.3k
:8888	NewsEDGE	TCPUDP	Web Services	caution	83.3k
:8888	HTTP Alternative Port	TCP	Web Services	caution	76.5k
:8888	GNUmp3d Streaming HTTP	TCP	Web Services	caution	76.3k
:9080	Groove RPC	TCPUDP	Web Services	caution	70.8k
:8881	Atlasz Secure Server	TCP	Web Services	caution	67.6k
:80	HTTP	TCPUDP	Web Services	caution	67.3k

risk mix of the 8 listed

safe13%
caution88%

0 of 8 encrypted

Port :8688OpenRemote Controller HTTP/REST

Technical Details

Security Information

Related Ports

Port 8688OpenRemote Controller HTTP/REST