- 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 30000: Secure Network Data Management Protocol
Port 30000 is assigned by IANA to ndmps (Secure Network Data Management Protocol).
30000
How ndmps works
Other servicesThe client sends a request to port 30000 and the ndmps 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 30000 dangerous?
We have no specific security note for port 30000. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 30000
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| ndmps | 30000 | TCP | Secure Network Data Management Protocol | - | 2013-02-05 |
| - | 30000 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 30000, and is it reachable?
Linux
sudo ss -ltnup 'sport = :30000' # process listening on 30000
sudo lsof -nP -i :30000macOS
sudo lsof -nP -i :30000
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 30000 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 30000 netstat -ano | findstr :30000
From another machine
nmap -p 30000 -sV <host> nc -zv <host> 30000
Block it in the firewall
sudo ufw deny 30000/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 30000" -Direction Inbound -LocalPort 30000 -Protocol TCP -Action Block # Windows
What is port 30000 used for?
Port 30000 is assigned by IANA to ndmps (Secure Network Data Management Protocol).
Is port 30000 TCP or UDP?
Port 30000 is registered for TCP.
Is it safe to open port 30000?
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 30000 is open?
On Linux run "ss -ltnup 'sport = :30000'", on macOS "lsof -nP -i :30000", and on Windows "netstat -ano | findstr :30000" to see the local process. From another machine, "nmap -p 30000 <host>" shows whether it is reachable.
Other other services ports
: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