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// Other services

Port 1458: Nichols Research Corp.

Port 1458 is assigned by IANA to nrcabq-lm (Nichols Research Corp.).

1458

How nrcabq-lm works

Other services
client:1458nrcabq-lmresponse client:1458nrcabq-lmresponse

The client sends a request to port 1458 and the nrcabq-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 1458 dangerous?

We have no specific security note for port 1458. 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 1458

ServicePortTransportDescriptionReferenceUpdated
nrcabq-lm 1458 TCP, UDP Nichols Research Corp. - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1458, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1458'      # process listening on 1458
sudo lsof -nP -i :1458

macOS

sudo lsof -nP -i :1458

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1458 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1458
netstat -ano | findstr :1458

From another machine

nmap -p 1458 -sV <host>
sudo nmap -sU -p 1458 <host>
nc -zv <host> 1458

Block it in the firewall

sudo ufw deny 1458/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1458" -Direction Inbound -LocalPort 1458 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1458 used for?

Port 1458 is assigned by IANA to nrcabq-lm (Nichols Research Corp.).

Is port 1458 TCP or UDP?

Port 1458 is registered for TCP and UDP.

Is it safe to open port 1458?

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 1458 is open?

On Linux run "ss -ltnup 'sport = :1458'", on macOS "lsof -nP -i :1458", and on Windows "netstat -ano | findstr :1458" to see the local process. From another machine, "nmap -p 1458 <host>" shows whether it is reachable.

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