CyberHunter
Local dataset, no network
// Other services

Port 1770: bmc-net-svc

Port 1770 is assigned by IANA to bmc-net-svc (bmc-net-svc).

1770

How bmc-net-svc works

Other services
client:1770bmc-net-svcresponse client:1770bmc-net-svcresponse

The client sends a request to port 1770 and the bmc-net-svc 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 1770 dangerous?

We have no specific security note for port 1770. 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 1770

ServicePortTransportDescriptionReferenceUpdated
bmc-net-svc 1770 TCP, UDP bmc-net-svc - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1770, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1770'      # process listening on 1770
sudo lsof -nP -i :1770

macOS

sudo lsof -nP -i :1770

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1770 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1770
netstat -ano | findstr :1770

From another machine

nmap -p 1770 -sV <host>
sudo nmap -sU -p 1770 <host>
nc -zv <host> 1770

Block it in the firewall

sudo ufw deny 1770/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1770" -Direction Inbound -LocalPort 1770 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1770 used for?

Port 1770 is assigned by IANA to bmc-net-svc (bmc-net-svc).

Is port 1770 TCP or UDP?

Port 1770 is registered for TCP and UDP.

Is it safe to open port 1770?

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 1770 is open?

On Linux run "ss -ltnup 'sport = :1770'", on macOS "lsof -nP -i :1770", and on Windows "netstat -ano | findstr :1770" to see the local process. From another machine, "nmap -p 1770 <host>" shows whether it is reachable.

05 Related
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