Port 5784
ibar · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | ibar |
| Registered | 2010-02-03 |
Frequently asked questions
What is port 5784 used for?
Port 5784 is registered with the IANA for ibar (TCP/UDP). Description: Reserved; Cisco Interbox Application Redundancy.
Is port 5784 a well-known port?
No. Port 5784 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 5784 is open?
Locally on Linux with ss -tulpn | grep ':5784\b', on Windows with netstat -ano | findstr :5784. To test a remote host use Test-NetConnection <host> -Port 5784 in PowerShell or nc -zv <host> 5784 on Linux/macOS.
How do I open port 5784 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 5784/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=5784/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 5784" -Direction Inbound -Protocol TCP -LocalPort 5784 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | – | Reserved |
| UDP | ibar | Cisco Interbox Application Redundancy |