Port 9978XYBRID RT Server

TCP port 9978 is assigned to Rx Networks' XYBRID RT Server.

transport: tcp
in transit: cleartext
assignment: official
risk: 1/10
lookups: 0

Technical Details

what runs on :9978

XYBRID RT Server is registered on port :9978 over tcp to Rx Networks Inc, assigned January 2013. We don't have a technical write-up for it beyond the IANA registry entry.

In nmap's internet-wide scan data this port is never observed open, so if it's open on your network it's more likely a custom or misconfigured service than the registered one.

find what's listening on :9978

this machine

# linux
sudo ss -tlpn 'sport = :9978'

# macos / bsd
sudo lsof -nP -i :9978

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :9978

another host

nmap -sV -p T:9978 <host>

run it? the handshake, the implementations you meet in the wild and the flags that matter come from the engineers who do.

add technical details

Security Information

exposure of :9978

risk score

1/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

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

no security notes recorded for :9978 yet

known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.

Record

iana registry entry

port: :9978
service: XYBRID RT Server
transport: TCP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: The IANA assignment identifies this as the XYBRID RT Server service and names Rx Networks Inc. as the registrant. Publicly established details about its protocol or typical deployment are not available here.
lookups: 0rank 993
added: 2026-10-16
updated: 2026-10-16
references: IANA service name registry — port 9978

Something wrong?

This record is maintained by the engineers who use port 9978. 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 2026-10-16.

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

browse categories →

ports registered around :9978, by lookups.

port	service	proto	category	risk	views
:10000	Webmin		Web Services	caution	23.3k
:10000	Ericsson Account Manager		Network Services	caution	15.9k
:9999	Lantronix RS-485 Telnet Control	TCP	Network Services	caution	15.8k
:9999	Hydranode TELNET Control		File Transfer	caution	15.6k
:10000	BackupExec		File Transfer	caution	15.3k
:9999	Urchin Analytics		Web Services	caution	13.8k
:9987	TeamSpeak 3 Voice	UDP	Gaming	caution	11.9k
:10010	ooRexx rxapi daemon	TCP	Network Services	caution	9.2k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :9978XYBRID RT Server

Technical Details

Security Information

Related Ports

Port 9978XYBRID RT Server