CyberHunter
LinkedIn profile - Bastien Cordier Email: contact@bastiencordier.pro
// Other services

Port 16950: Simple Generic Client Interface Protocol

Port 16950 is assigned by IANA to sgcip (Simple Generic Client Interface Protocol).

16950

How sgcip works

Other services
client:16950sgcipresponse client:16950sgcipresponse

The client sends a request to port 16950 and the sgcip 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 16950 dangerous?

We have no specific security note for port 16950. 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 16950

ServicePortTransportDescriptionReferenceUpdated
sgcip 16950 TCP, UDP Simple Generic Client Interface Protocol - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 16950, and is it reachable?

Linux

sudo ss -ltnup 'sport = :16950'      # process listening on 16950
sudo lsof -nP -i :16950

macOS

sudo lsof -nP -i :16950

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 16950 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 16950
netstat -ano | findstr :16950

From another machine

nmap -p 16950 -sV <host>
sudo nmap -sU -p 16950 <host>
nc -zv <host> 16950

Block it in the firewall

sudo ufw deny 16950/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 16950" -Direction Inbound -LocalPort 16950 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 16950 used for?

Port 16950 is assigned by IANA to sgcip (Simple Generic Client Interface Protocol).

Is port 16950 TCP or UDP?

Port 16950 is registered for TCP and UDP.

Is it safe to open port 16950?

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 16950 is open?

On Linux run "ss -ltnup 'sport = :16950'", on macOS "lsof -nP -i :16950", and on Windows "netstat -ano | findstr :16950" to see the local process. From another machine, "nmap -p 16950 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

Latest vulnerability news

All news