CyberHunter
Local dataset, no network
// Other services

Port 1772: EssWeb Gateway

Port 1772 is assigned by IANA to essweb-gw (EssWeb Gateway).

1772

How essweb-gw works

Other services
client:1772essweb-gwresponse client:1772essweb-gwresponse

The client sends a request to port 1772 and the essweb-gw 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 1772 dangerous?

We have no specific security note for port 1772. 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 1772

ServicePortTransportDescriptionReferenceUpdated
essweb-gw 1772 TCP, UDP EssWeb Gateway - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1772, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1772'      # process listening on 1772
sudo lsof -nP -i :1772

macOS

sudo lsof -nP -i :1772

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1772 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1772
netstat -ano | findstr :1772

From another machine

nmap -p 1772 -sV <host>
sudo nmap -sU -p 1772 <host>
nc -zv <host> 1772

Block it in the firewall

sudo ufw deny 1772/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1772" -Direction Inbound -LocalPort 1772 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1772 used for?

Port 1772 is assigned by IANA to essweb-gw (EssWeb Gateway).

Is port 1772 TCP or UDP?

Port 1772 is registered for TCP and UDP.

Is it safe to open port 1772?

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 1772 is open?

On Linux run "ss -ltnup 'sport = :1772'", on macOS "lsof -nP -i :1772", and on Windows "netstat -ano | findstr :1772" to see the local process. From another machine, "nmap -p 1772 <host>" shows whether it is reachable.

05 Related
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