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// Other services

Port 2885: TopFlow

Port 2885 is assigned by IANA to topflow (TopFlow).

2885

How topflow works

Other services
client:2885topflowresponse client:2885topflowresponse

The client sends a request to port 2885 and the topflow 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 2885 dangerous?

We have no specific security note for port 2885. 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 2885

ServicePortTransportDescriptionReferenceUpdated
topflow 2885 TCP, UDP TopFlow - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2885, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2885'      # process listening on 2885
sudo lsof -nP -i :2885

macOS

sudo lsof -nP -i :2885

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2885 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2885
netstat -ano | findstr :2885

From another machine

nmap -p 2885 -sV <host>
sudo nmap -sU -p 2885 <host>
nc -zv <host> 2885

Block it in the firewall

sudo ufw deny 2885/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2885" -Direction Inbound -LocalPort 2885 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2885 used for?

Port 2885 is assigned by IANA to topflow (TopFlow).

Is port 2885 TCP or UDP?

Port 2885 is registered for TCP and UDP.

Is it safe to open port 2885?

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 2885 is open?

On Linux run "ss -ltnup 'sport = :2885'", on macOS "lsof -nP -i :2885", and on Windows "netstat -ano | findstr :2885" to see the local process. From another machine, "nmap -p 2885 <host>" shows whether it is reachable.

05 Related
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