CyberHunter
Local dataset, no network
// Other services

Port 1457: Valisys License Manager

Port 1457 is assigned by IANA to valisys-lm (Valisys License Manager).

1457

How valisys-lm works

Other services
client:1457valisys-lmresponse client:1457valisys-lmresponse

The client sends a request to port 1457 and the valisys-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 1457 dangerous?

We have no specific security note for port 1457. 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 1457

ServicePortTransportDescriptionReferenceUpdated
valisys-lm 1457 TCP, UDP Valisys License Manager - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1457, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1457'      # process listening on 1457
sudo lsof -nP -i :1457

macOS

sudo lsof -nP -i :1457

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1457 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1457
netstat -ano | findstr :1457

From another machine

nmap -p 1457 -sV <host>
sudo nmap -sU -p 1457 <host>
nc -zv <host> 1457

Block it in the firewall

sudo ufw deny 1457/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1457" -Direction Inbound -LocalPort 1457 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1457 used for?

Port 1457 is assigned by IANA to valisys-lm (Valisys License Manager).

Is port 1457 TCP or UDP?

Port 1457 is registered for TCP and UDP.

Is it safe to open port 1457?

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 1457 is open?

On Linux run "ss -ltnup 'sport = :1457'", on macOS "lsof -nP -i :1457", and on Windows "netstat -ano | findstr :1457" to see the local process. From another machine, "nmap -p 1457 <host>" shows whether it is reachable.

05 Related
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