Port 5618
efr · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | efr |
| Registered | 2013-08-13 |
| Modified | 2022-02-02 |
Frequently asked questions
What is port 5618 used for?
Port 5618 is registered with the IANA for efr (TCP/UDP). Description: Fiscal Registering Protocol; Reserved.
Is port 5618 a well-known port?
No. Port 5618 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 5618 is open?
Locally on Linux with ss -tulpn | grep ':5618\b', on Windows with netstat -ano | findstr :5618. To test a remote host use Test-NetConnection <host> -Port 5618 in PowerShell or nc -zv <host> 5618 on Linux/macOS.
How do I open port 5618 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 5618/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=5618/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 5618" -Direction Inbound -Protocol TCP -LocalPort 5618 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | efr | Fiscal Registering Protocol |
| UDP | – | Reserved |