Port 4335
netconf-ch-tls · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | netconf-ch-tls |
| Reference | RFC 8071 |
| Registered | 2016-01-12 |
Frequently asked questions
What is port 4335 used for?
Port 4335 is registered with the IANA for netconf-ch-tls (TCP/UDP). Description: NETCONF Call Home (TLS); Reserved.
Is port 4335 a well-known port?
No. Port 4335 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 4335 is open?
Locally on Linux with ss -tulpn | grep ':4335\b', on Windows with netstat -ano | findstr :4335. To test a remote host use Test-NetConnection <host> -Port 4335 in PowerShell or nc -zv <host> 4335 on Linux/macOS.
How do I open port 4335 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 4335/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4335/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4335" -Direction Inbound -Protocol TCP -LocalPort 4335 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | netconf-ch-tls | NETCONF Call Home (TLS) |
| UDP | – | Reserved |