CyberHunter
Local dataset, no network
// Other services

Port 5064: Channel Access 1

Port 5064 is assigned by IANA to ca-1 (Channel Access 1).

5064

How ca-1 works

Other services
client:5064ca-1response client:5064ca-1response

The client sends a request to port 5064 and the ca-1 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 5064 dangerous?

We have no specific security note for port 5064. 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 5064

ServicePortTransportDescriptionReferenceUpdated
ca-1 5064 TCP, UDP Channel Access 1 - 2002-08

// source: IANA service name and port number registry

03 Check it

Which program uses port 5064, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5064'      # process listening on 5064
sudo lsof -nP -i :5064

macOS

sudo lsof -nP -i :5064

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5064 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5064
netstat -ano | findstr :5064

From another machine

nmap -p 5064 -sV <host>
sudo nmap -sU -p 5064 <host>
nc -zv <host> 5064

Block it in the firewall

sudo ufw deny 5064/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5064" -Direction Inbound -LocalPort 5064 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5064 used for?

Port 5064 is assigned by IANA to ca-1 (Channel Access 1).

Is port 5064 TCP or UDP?

Port 5064 is registered for TCP and UDP.

Is it safe to open port 5064?

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 5064 is open?

On Linux run "ss -ltnup 'sport = :5064'", on macOS "lsof -nP -i :5064", and on Windows "netstat -ano | findstr :5064" to see the local process. From another machine, "nmap -p 5064 <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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