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// Other services

Port 1319: AMX-ICSP

Port 1319 is assigned by IANA to amx-icsp (AMX-ICSP).

1319

How amx-icsp works

Other services
client:1319amx-icspresponse client:1319amx-icspresponse

The client sends a request to port 1319 and the amx-icsp 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 1319 dangerous?

We have no specific security note for port 1319. 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 1319

ServicePortTransportDescriptionReferenceUpdated
amx-icsp 1319 TCP, UDP AMX-ICSP - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1319, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1319'      # process listening on 1319
sudo lsof -nP -i :1319

macOS

sudo lsof -nP -i :1319

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1319 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1319
netstat -ano | findstr :1319

From another machine

nmap -p 1319 -sV <host>
sudo nmap -sU -p 1319 <host>
nc -zv <host> 1319

Block it in the firewall

sudo ufw deny 1319/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1319" -Direction Inbound -LocalPort 1319 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1319 used for?

Port 1319 is assigned by IANA to amx-icsp (AMX-ICSP).

Is port 1319 TCP or UDP?

Port 1319 is registered for TCP and UDP.

Is it safe to open port 1319?

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 1319 is open?

On Linux run "ss -ltnup 'sport = :1319'", on macOS "lsof -nP -i :1319", and on Windows "netstat -ano | findstr :1319" to see the local process. From another machine, "nmap -p 1319 <host>" shows whether it is reachable.

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