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// Other services

Port 1225: SLINKYSEARCH

Port 1225 is assigned by IANA to slinkysearch (SLINKYSEARCH).

1225

How slinkysearch works

Other services
client:1225slinkysearchresponse client:1225slinkysearchresponse

The client sends a request to port 1225 and the slinkysearch 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 1225 dangerous?

We have no specific security note for port 1225. 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 1225

ServicePortTransportDescriptionReferenceUpdated
slinkysearch 1225 TCP, UDP SLINKYSEARCH - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1225, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1225'      # process listening on 1225
sudo lsof -nP -i :1225

macOS

sudo lsof -nP -i :1225

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1225 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1225
netstat -ano | findstr :1225

From another machine

nmap -p 1225 -sV <host>
sudo nmap -sU -p 1225 <host>
nc -zv <host> 1225

Block it in the firewall

sudo ufw deny 1225/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1225" -Direction Inbound -LocalPort 1225 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1225 used for?

Port 1225 is assigned by IANA to slinkysearch (SLINKYSEARCH).

Is port 1225 TCP or UDP?

Port 1225 is registered for TCP and UDP.

Is it safe to open port 1225?

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 1225 is open?

On Linux run "ss -ltnup 'sport = :1225'", on macOS "lsof -nP -i :1225", and on Windows "netstat -ano | findstr :1225" to see the local process. From another machine, "nmap -p 1225 <host>" shows whether it is reachable.

05 Related
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