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// Other services

Port 1221: SweetWARE Apps

Port 1221 is assigned by IANA to sweetware-apps (SweetWARE Apps).

1221

How sweetware-apps works

Other services
client:1221sweetware-appsresponse client:1221sweetware-appsresponse

The client sends a request to port 1221 and the sweetware-apps 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 1221 dangerous?

We have no specific security note for port 1221. 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 1221

ServicePortTransportDescriptionReferenceUpdated
sweetware-apps 1221 TCP, UDP SweetWARE Apps - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1221, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1221'      # process listening on 1221
sudo lsof -nP -i :1221

macOS

sudo lsof -nP -i :1221

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1221 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1221
netstat -ano | findstr :1221

From another machine

nmap -p 1221 -sV <host>
sudo nmap -sU -p 1221 <host>
nc -zv <host> 1221

Block it in the firewall

sudo ufw deny 1221/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1221" -Direction Inbound -LocalPort 1221 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1221 used for?

Port 1221 is assigned by IANA to sweetware-apps (SweetWARE Apps).

Is port 1221 TCP or UDP?

Port 1221 is registered for TCP and UDP.

Is it safe to open port 1221?

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 1221 is open?

On Linux run "ss -ltnup 'sport = :1221'", on macOS "lsof -nP -i :1221", and on Windows "netstat -ano | findstr :1221" to see the local process. From another machine, "nmap -p 1221 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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