- 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.
Port 13823: Blackmagic Design Streaming Server
Port 13823 is assigned by IANA to bmdss (Blackmagic Design Streaming Server).
13823
How bmdss works
Other servicesThe client sends a request to port 13823 and the bmdss service answers.
- Transport
- TCP
- 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
Is port 13823 dangerous?
We have no specific security note for port 13823. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 13823
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| bmdss | 13823 | TCP | Blackmagic Design Streaming Server | - | 2011-03-01 |
| - | 13823 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 13823, and is it reachable?
Linux
sudo ss -ltnup 'sport = :13823' # process listening on 13823
sudo lsof -nP -i :13823macOS
sudo lsof -nP -i :13823
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 13823 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 13823 netstat -ano | findstr :13823
From another machine
nmap -p 13823 -sV <host> nc -zv <host> 13823
Block it in the firewall
sudo ufw deny 13823/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 13823" -Direction Inbound -LocalPort 13823 -Protocol TCP -Action Block # Windows
What is port 13823 used for?
Port 13823 is assigned by IANA to bmdss (Blackmagic Design Streaming Server).
Is port 13823 TCP or UDP?
Port 13823 is registered for TCP.
Is it safe to open port 13823?
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 13823 is open?
On Linux run "ss -ltnup 'sport = :13823'", on macOS "lsof -nP -i :13823", and on Windows "netstat -ano | findstr :13823" to see the local process. From another machine, "nmap -p 13823 <host>" shows whether it is reachable.
Other other services ports
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