CyberHunter
Local dataset, no network
// Other services

Port 4014: TAICLOCK

Port 4014 is assigned by IANA to taiclock (TAICLOCK).

4014

How taiclock works

Other services
client:4014taiclockresponse client:4014taiclockresponse

The client sends a request to port 4014 and the taiclock 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 4014 dangerous?

We have no specific security note for port 4014. 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 4014

ServicePortTransportDescriptionReferenceUpdated
taiclock 4014 TCP, UDP TAICLOCK - 2018-04-05

// source: IANA service name and port number registry

03 Check it

Which program uses port 4014, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4014'      # process listening on 4014
sudo lsof -nP -i :4014

macOS

sudo lsof -nP -i :4014

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4014 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4014
netstat -ano | findstr :4014

From another machine

nmap -p 4014 -sV <host>
sudo nmap -sU -p 4014 <host>
nc -zv <host> 4014

Block it in the firewall

sudo ufw deny 4014/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4014" -Direction Inbound -LocalPort 4014 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4014 used for?

Port 4014 is assigned by IANA to taiclock (TAICLOCK).

Is port 4014 TCP or UDP?

Port 4014 is registered for TCP and UDP.

Is it safe to open port 4014?

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 4014 is open?

On Linux run "ss -ltnup 'sport = :4014'", on macOS "lsof -nP -i :4014", and on Windows "netstat -ano | findstr :4014" to see the local process. From another machine, "nmap -p 4014 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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