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// Databases & caches

Port 5505: Checkout Database

Port 5505 is assigned by IANA to checkoutdb (Checkout Database).

5505

How checkoutdb works

Databases & caches
app:5505checkoutdb app:5505checkoutdb

The application sends a SQL query to the checkoutdb server on port 5505, which returns rows from its tables.

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
Databases & caches
01 Security

Is port 5505 dangerous?

We have no specific security note for port 5505. Its risk depends on the program actually listening on it. General advice for databases & caches services:

  • Bind the service to localhost or a private network, never to a public address.
  • Enable authentication, use per-application accounts and require TLS.
  • Watch for exposed Docker ports: publish them on 127.0.0.1 only.
02 Registry

IANA registry entries for port 5505

ServicePortTransportDescriptionReferenceUpdated
checkoutdb 5505 TCP, UDP Checkout Database - 2007-04

// source: IANA service name and port number registry

03 Check it

Which program uses port 5505, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5505'      # process listening on 5505
sudo lsof -nP -i :5505

macOS

sudo lsof -nP -i :5505

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5505 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5505
netstat -ano | findstr :5505

From another machine

nmap -p 5505 -sV <host>
sudo nmap -sU -p 5505 <host>
nc -zv <host> 5505

Block it in the firewall

sudo ufw deny 5505/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5505" -Direction Inbound -LocalPort 5505 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5505 used for?

Port 5505 is assigned by IANA to checkoutdb (Checkout Database).

Is port 5505 TCP or UDP?

Port 5505 is registered for TCP and UDP.

Is it safe to open port 5505?

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. Bind the service to localhost or a private network, never to a public address.

How do I check if port 5505 is open?

On Linux run "ss -ltnup 'sport = :5505'", on macOS "lsof -nP -i :5505", and on Windows "netstat -ano | findstr :5505" to see the local process. From another machine, "nmap -p 5505 <host>" shows whether it is reachable.

05 Related
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