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// Other services

Port 2015:

Port 2015 is assigned by IANA to cypress (), raid-cs ().

2015

How cypress works

Other services
client:2015cypressresponse client:2015cypressresponse

The client sends a request to port 2015 and the cypress service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned2 registered services
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 2015 dangerous?

We have no specific security note for port 2015. 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 2015

ServicePortTransportDescriptionReferenceUpdated
cypress 2015 TCP - -
raid-cs 2015 UDP - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2015, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2015'      # process listening on 2015
sudo lsof -nP -i :2015

macOS

sudo lsof -nP -i :2015

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2015 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2015
netstat -ano | findstr :2015

From another machine

nmap -p 2015 -sV <host>
sudo nmap -sU -p 2015 <host>
nc -zv <host> 2015

Block it in the firewall

sudo ufw deny 2015/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2015" -Direction Inbound -LocalPort 2015 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2015 used for?

Port 2015 is assigned by IANA to cypress (), raid-cs ().

Is port 2015 TCP or UDP?

Port 2015 is registered for TCP and UDP.

Is it safe to open port 2015?

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 2015 is open?

On Linux run "ss -ltnup 'sport = :2015'", on macOS "lsof -nP -i :2015", and on Windows "netstat -ano | findstr :2015" to see the local process. From another machine, "nmap -p 2015 <host>" shows whether it is reachable.

05 Related
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