Port 3050: Firebird
Port 3050 is the Firebird database server's default listener, registered with IANA under the name gds_db. Firebird is an open-source relational database descended from Borland InterBase.
| Port number | 3050 |
|---|---|
| Service | Firebird database (gds_db) |
| Protocol | TCP |
| Category | Databases |
| Default encryption | No |
How do I check whether port 3050 is open?
Port 3050 carries TCP, so a connection either completes its handshake or it does not, which makes the check definitive.
| Question | Command | What to know |
|---|---|---|
| Is it open on a remote host? | nc -vz example.com 3050 | A TCP handshake either completes or it does not, so netcat gives a definitive answer in one line. |
| Same check on Windows | Test-NetConnection example.com -Port 3050 | Built into PowerShell. TcpTestSucceeded in the output is the answer; telnet is not installed by default on modern Windows. |
| What is listening locally? | ss -tlnp | grep ':3050 ' | Lists the process bound to port 3050 on Linux. On macOS use lsof -nP -iTCP:3050 -sTCP:LISTEN, on Windows netstat -ano | findstr :3050 |
Replace example.com with the host you are testing. A blocked port and a port with nothing listening on it look identical from the outside, so if a service should be running, check locally before blaming the firewall.
Frequently asked questions
What is port 3050 used for?
Port 3050 is the Firebird database server's default listener, registered with IANA under the name gds_db. Firebird is an open-source relational database descended from Borland InterBase.
Is port 3050 TCP or UDP?
Port 3050 (Firebird) uses TCP.
Is port 3050 secure?
Port 3050 is not encrypted by default. Where possible, use an encrypted alternative or tunnel it over TLS or a VPN.
Should I open port 3050 on my firewall?
Only if you specifically need Firebird. Expose it to the smallest set of trusted sources, and never open database or Windows-service ports to the whole internet.