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// Other services

Port 5770: x509solutions Secure Data

Port 5770 is assigned by IANA to spramsd (x509solutions Secure Data).

5770

How spramsd works

Other services
client:5770spramsdresponse client:5770spramsdresponse

The client sends a request to port 5770 and the spramsd 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 5770 dangerous?

We have no specific security note for port 5770. 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 5770

ServicePortTransportDescriptionReferenceUpdated
spramsd 5770 TCP, UDP x509solutions Secure Data - 2006-02

// source: IANA service name and port number registry

03 Check it

Which program uses port 5770, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5770'      # process listening on 5770
sudo lsof -nP -i :5770

macOS

sudo lsof -nP -i :5770

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5770 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5770
netstat -ano | findstr :5770

From another machine

nmap -p 5770 -sV <host>
sudo nmap -sU -p 5770 <host>
nc -zv <host> 5770

Block it in the firewall

sudo ufw deny 5770/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5770" -Direction Inbound -LocalPort 5770 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5770 used for?

Port 5770 is assigned by IANA to spramsd (x509solutions Secure Data).

Is port 5770 TCP or UDP?

Port 5770 is registered for TCP and UDP.

Is it safe to open port 5770?

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 5770 is open?

On Linux run "ss -ltnup 'sport = :5770'", on macOS "lsof -nP -i :5770", and on Windows "netstat -ano | findstr :5770" to see the local process. From another machine, "nmap -p 5770 <host>" shows whether it is reachable.

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