CyberHunter
Local dataset, no network
// Other services

Port 8911: manyone-xml

Port 8911 is assigned by IANA to manyone-xml (manyone-xml).

8911

How manyone-xml works

Other services
client:8911manyone-xmlresponse client:8911manyone-xmlresponse

The client sends a request to port 8911 and the manyone-xml 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 8911 dangerous?

We have no specific security note for port 8911. 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 8911

ServicePortTransportDescriptionReferenceUpdated
manyone-xml 8911 TCP, UDP manyone-xml - 2002-04

// source: IANA service name and port number registry

03 Check it

Which program uses port 8911, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8911'      # process listening on 8911
sudo lsof -nP -i :8911

macOS

sudo lsof -nP -i :8911

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8911 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8911
netstat -ano | findstr :8911

From another machine

nmap -p 8911 -sV <host>
sudo nmap -sU -p 8911 <host>
nc -zv <host> 8911

Block it in the firewall

sudo ufw deny 8911/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8911" -Direction Inbound -LocalPort 8911 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8911 used for?

Port 8911 is assigned by IANA to manyone-xml (manyone-xml).

Is port 8911 TCP or UDP?

Port 8911 is registered for TCP and UDP.

Is it safe to open port 8911?

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 8911 is open?

On Linux run "ss -ltnup 'sport = :8911'", on macOS "lsof -nP -i :8911", and on Windows "netstat -ano | findstr :8911" to see the local process. From another machine, "nmap -p 8911 <host>" shows whether it is reachable.

05 Related
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