CyberHunter
Local dataset, no network
// Other services

Port 1714: sesi-lm

Port 1714 is assigned by IANA to sesi-lm (sesi-lm).

1714

How sesi-lm works

Other services
client:1714sesi-lmresponse client:1714sesi-lmresponse

The client sends a request to port 1714 and the sesi-lm 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 1714 dangerous?

We have no specific security note for port 1714. 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 1714

ServicePortTransportDescriptionReferenceUpdated
sesi-lm 1714 TCP, UDP sesi-lm - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1714, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1714'      # process listening on 1714
sudo lsof -nP -i :1714

macOS

sudo lsof -nP -i :1714

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1714 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1714
netstat -ano | findstr :1714

From another machine

nmap -p 1714 -sV <host>
sudo nmap -sU -p 1714 <host>
nc -zv <host> 1714

Block it in the firewall

sudo ufw deny 1714/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1714" -Direction Inbound -LocalPort 1714 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1714 used for?

Port 1714 is assigned by IANA to sesi-lm (sesi-lm).

Is port 1714 TCP or UDP?

Port 1714 is registered for TCP and UDP.

Is it safe to open port 1714?

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 1714 is open?

On Linux run "ss -ltnup 'sport = :1714'", on macOS "lsof -nP -i :1714", and on Windows "netstat -ano | findstr :1714" to see the local process. From another machine, "nmap -p 1714 <host>" shows whether it is reachable.

05 Related
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