Port 9878
kca-service · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | kca-service |
| Reference | RFC 6717 |
| Registered | 2012-07-12 |
Frequently asked questions
What is port 9878 used for?
Port 9878 is registered with the IANA for kca-service (TCP/UDP). Description: The KX509 Kerberized Certificate Issuance Protocol in Use in 2012; Reserved.
Is port 9878 a well-known port?
No. Port 9878 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 9878 is open?
Locally on Linux with ss -tulpn | grep ':9878\b', on Windows with netstat -ano | findstr :9878. To test a remote host use Test-NetConnection <host> -Port 9878 in PowerShell or nc -zv <host> 9878 on Linux/macOS.
How do I open port 9878 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 9878/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=9878/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 9878" -Direction Inbound -Protocol TCP -LocalPort 9878 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| UDP | kca-service | The KX509 Kerberized Certificate Issuance Protocol in Use in 2012 |
| TCP | – | Reserved |