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// Other services

Port 322: RTSPS

Port 322 is assigned by IANA to rtsps (RTSPS).

322

How rtsps works

Other services
client:322rtspsresponse client:322rtspsresponse

The client sends a request to port 322 and the rtsps 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
Well-known (0-1023)
Category
Other services
01 Security

Is port 322 dangerous?

We have no specific security note for port 322. 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 322

ServicePortTransportDescriptionReferenceUpdated
rtsps 322 TCP, UDP RTSPS - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 322, and is it reachable?

Linux

sudo ss -ltnup 'sport = :322'      # process listening on 322
sudo lsof -nP -i :322

macOS

sudo lsof -nP -i :322

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 322 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 322
netstat -ano | findstr :322

From another machine

nmap -p 322 -sV <host>
sudo nmap -sU -p 322 <host>
nc -zv <host> 322

Block it in the firewall

sudo ufw deny 322/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 322" -Direction Inbound -LocalPort 322 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 322 used for?

Port 322 is assigned by IANA to rtsps (RTSPS).

Is port 322 TCP or UDP?

Port 322 is registered for TCP and UDP.

Is it safe to open port 322?

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 322 is open?

On Linux run "ss -ltnup 'sport = :322'", on macOS "lsof -nP -i :322", and on Windows "netstat -ano | findstr :322" to see the local process. From another machine, "nmap -p 322 <host>" shows whether it is reachable.

05 Related
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