- Do not expose remote administration directly: use a VPN or a zero-trust access proxy.
- Require MFA or key-based authentication and lock out brute-force attempts.
- Log every login and alert on new source addresses.
Port 47001: Windows Remote Management Service
Port 47001 is assigned by IANA to winrm (Windows Remote Management Service).
47001
How winrm works
Remote accessThe client opens a session to port 47001: each command typed is sent to the server, which runs it and returns the output.
- 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
- Remote access
Is port 47001 dangerous?
We have no specific security note for port 47001. Its risk depends on the program actually listening on it. General advice for remote access services:
IANA registry entries for port 47001
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| winrm | 47001 | TCP | Windows Remote Management Service | - | 2009-04-29 |
| - | 47001 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 47001, and is it reachable?
Linux
sudo ss -ltnup 'sport = :47001' # process listening on 47001
sudo lsof -nP -i :47001macOS
sudo lsof -nP -i :47001
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 47001 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 47001 netstat -ano | findstr :47001
From another machine
nmap -p 47001 -sV <host> nc -zv <host> 47001
Block it in the firewall
sudo ufw deny 47001/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 47001" -Direction Inbound -LocalPort 47001 -Protocol TCP -Action Block # Windows
What is port 47001 used for?
Port 47001 is assigned by IANA to winrm (Windows Remote Management Service).
Is port 47001 TCP or UDP?
Port 47001 is registered for TCP.
Is it safe to open port 47001?
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. Do not expose remote administration directly: use a VPN or a zero-trust access proxy.
How do I check if port 47001 is open?
On Linux run "ss -ltnup 'sport = :47001'", on macOS "lsof -nP -i :47001", and on Windows "netstat -ano | findstr :47001" to see the local process. From another machine, "nmap -p 47001 <host>" shows whether it is reachable.
Other remote access ports
:22 SSH tcp · udp · sctp · moderate risk :3389 RDP tcp · udp · critical risk :23 Telnet tcp · udp · critical risk :5900 VNC tcp · udp · critical risk :5985 WinRM (HTTP) tcp · udp · high risk :5986 WinRM (HTTPS) tcp · udp · high risk :10000 Webmin tcp · udp · high risk :89 SU/MIT Telnet Gateway tcp · udp