Port 5435SCEANICS situation and action notification

SCEANICS carries situation and action notifications over TCP or UDP.

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

Technical Details

what runs on :5435

SCEANICS situation and action notification is registered on port :5435 over tcp and udp to Richard Olsen. 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 found open rarely. What's listening is often not the registered service, so check before you assume.

find what's listening on :5435

this machine

# linux
sudo ss -tulpn 'sport = :5435'

# macos / bsd
sudo lsof -nP -i :5435

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :5435

another host

nmap -sV -p T:5435 <host>
sudo nmap -sU -sV -p U:5435 <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 :5435

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 · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

no security notes recorded for :5435 yet

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

Record

iana registry entry

port: :5435
service: SCEANICS situation and action notification
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: This assignment identifies the SCEANICS situation and action notification service on TCP and UDP port 5435. It was registered to Richard Olsen, but public information about implementations and deployments is unavailable.
lookups: 0rank 993
added: 2026-08-25
updated: 2026-08-25
references: IANA service name registry — port 5435

Something wrong?

This record is maintained by the engineers who use port 5435. 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 2026-08-25.

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 :5435, by lookups.

port	service	proto	category	risk	views
:5495	Applix TM1 Admin	TCP	Databases	caution	24.8k
:5450	OSIsoft PI System Client	TCP	Databases	caution	14.3k
:5402	MFTP Protocol	TCPUDP	File Transfer	caution	11.0k
:5432	PostgreSQL	TCPUDP	Databases	caution	10.8k
:5405	NetSupport Manager	TCPUDP	Remote Access	caution	9.3k
:5498	Hotline Tracker Server	TCP	File Transfer	caution	8.4k
:5445	Cisco Unified Video Advantage	UDP	Network Services	caution	7.8k
:5421	NetSupport Manager	TCPUDP	Security	caution	7.7k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :5435SCEANICS situation and action notification

Technical Details

Security Information

Related Ports

Port 5435SCEANICS situation and action notification