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// Other services

Port 3854: Stryker Comm Port

Port 3854 is assigned by IANA to stryker-com (Stryker Comm Port).

3854

How stryker-com works

Other services
client:3854stryker-comresponse client:3854stryker-comresponse

The client sends a request to port 3854 and the stryker-com 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 3854 dangerous?

We have no specific security note for port 3854. 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 3854

ServicePortTransportDescriptionReferenceUpdated
stryker-com 3854 TCP, UDP Stryker Comm Port - 2003-08

// source: IANA service name and port number registry

03 Check it

Which program uses port 3854, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3854'      # process listening on 3854
sudo lsof -nP -i :3854

macOS

sudo lsof -nP -i :3854

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3854 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3854
netstat -ano | findstr :3854

From another machine

nmap -p 3854 -sV <host>
sudo nmap -sU -p 3854 <host>
nc -zv <host> 3854

Block it in the firewall

sudo ufw deny 3854/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3854" -Direction Inbound -LocalPort 3854 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3854 used for?

Port 3854 is assigned by IANA to stryker-com (Stryker Comm Port).

Is port 3854 TCP or UDP?

Port 3854 is registered for TCP and UDP.

Is it safe to open port 3854?

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 3854 is open?

On Linux run "ss -ltnup 'sport = :3854'", on macOS "lsof -nP -i :3854", and on Windows "netstat -ano | findstr :3854" to see the local process. From another machine, "nmap -p 3854 <host>" shows whether it is reachable.

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