CyberHunter
Local dataset, no network
// Other services

Port 5435: SCEANICS situation and action notification

Port 5435 is assigned by IANA to sceanics (SCEANICS situation and action notification).

5435

How sceanics works

Other services
client:5435sceanicsresponse client:5435sceanicsresponse

The client sends a request to port 5435 and the sceanics service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 5435 dangerous?

We have no specific security note for port 5435. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 5435

ServicePortTransportDescriptionReferenceUpdated
sceanics 5435 TCP, UDP SCEANICS situation and action notification - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 5435, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5435'      # process listening on 5435
sudo lsof -nP -i :5435

macOS

sudo lsof -nP -i :5435

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5435 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5435
netstat -ano | findstr :5435

From another machine

nmap -p 5435 -sV <host>
sudo nmap -sU -p 5435 <host>
nc -zv <host> 5435

Block it in the firewall

sudo ufw deny 5435/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5435" -Direction Inbound -LocalPort 5435 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5435 used for?

Port 5435 is assigned by IANA to sceanics (SCEANICS situation and action notification).

Is port 5435 TCP or UDP?

Port 5435 is registered for TCP and UDP.

Is it safe to open port 5435?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 5435 is open?

On Linux run "ss -ltnup 'sport = :5435'", on macOS "lsof -nP -i :5435", and on Windows "netstat -ano | findstr :5435" to see the local process. From another machine, "nmap -p 5435 <host>" shows whether it is reachable.

05 Related
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