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// Other services

Port 3179: H2GF W.2m Handover prot.

Port 3179 is assigned by IANA to h2gf-w-2m (H2GF W.2m Handover prot.).

3179

How h2gf-w-2m works

Other services
client:3179h2gf-w-2mresponse client:3179h2gf-w-2mresponse

The client sends a request to port 3179 and the h2gf-w-2m 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 3179 dangerous?

We have no specific security note for port 3179. 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 3179

ServicePortTransportDescriptionReferenceUpdated
h2gf-w-2m 3179 TCP, UDP H2GF W.2m Handover prot. - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 3179, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3179'      # process listening on 3179
sudo lsof -nP -i :3179

macOS

sudo lsof -nP -i :3179

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3179 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3179
netstat -ano | findstr :3179

From another machine

nmap -p 3179 -sV <host>
sudo nmap -sU -p 3179 <host>
nc -zv <host> 3179

Block it in the firewall

sudo ufw deny 3179/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3179" -Direction Inbound -LocalPort 3179 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3179 used for?

Port 3179 is assigned by IANA to h2gf-w-2m (H2GF W.2m Handover prot.).

Is port 3179 TCP or UDP?

Port 3179 is registered for TCP and UDP.

Is it safe to open port 3179?

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 3179 is open?

On Linux run "ss -ltnup 'sport = :3179'", on macOS "lsof -nP -i :3179", and on Windows "netstat -ano | findstr :3179" to see the local process. From another machine, "nmap -p 3179 <host>" shows whether it is reachable.

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