Port 1194: OpenVPN
Port 1194 is the default port for OpenVPN, a widely used open-source VPN protocol. It runs over UDP by default for performance, though OpenVPN can also fall back to TCP on the same port to get through restrictive firewalls.
| Port number | 1194 |
|---|---|
| Service | OpenVPN |
| Protocol | TCP/UDP |
| Category | Remote access |
| Default encryption | No |
How do I check whether port 1194 is open?
Port 1194 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 1194 | 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 1194 | 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 ':1194 ' | Lists the process bound to port 1194 on Linux. On macOS use lsof -nP -iTCP:1194 -sTCP:LISTEN, on Windows netstat -ano | findstr :1194 |
| Is it open on a remote host? | sudo nmap -sU -p 1194 example.com | UDP has no handshake, so there is nothing to complete. nmap infers the state from whether an ICMP port-unreachable comes back, needs root, and is slow and easy to misread. A silent port may be open, filtered, or simply not replying to a probe it does not recognise. |
| What is listening locally? | ss -ulnp | grep ':1194 ' | Shows the UDP socket bound to port 1194. This is the reliable way to answer the question, because you are asking the host itself rather than guessing from outside. |
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 1194 used for?
Port 1194 is the default port for OpenVPN, a widely used open-source VPN protocol. It runs over UDP by default for performance, though OpenVPN can also fall back to TCP on the same port to get through restrictive firewalls.
Is port 1194 TCP or UDP?
Port 1194 (OpenVPN) uses TCP/UDP.
Is port 1194 secure?
Port 1194 is not encrypted by default. Where possible, use an encrypted alternative or tunnel it over TLS or a VPN.
Should I open port 1194 on my firewall?
Only if you specifically need OpenVPN. Expose it to the smallest set of trusted sources, and never open database or Windows-service ports to the whole internet.