Port 21213
cohesity-agent · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | cohesity-agent |
| Registered | 2019-08-01 |
Frequently asked questions
What is port 21213 used for?
Port 21213 is registered with the IANA for cohesity-agent (TCP/UDP). Description: Cohesity backup agents; Reserved.
Is port 21213 a well-known port?
No. Port 21213 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 21213 is open?
Locally on Linux with ss -tulpn | grep ':21213\b', on Windows with netstat -ano | findstr :21213. To test a remote host use Test-NetConnection <host> -Port 21213 in PowerShell or nc -zv <host> 21213 on Linux/macOS.
How do I open port 21213 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 21213/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=21213/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 21213" -Direction Inbound -Protocol TCP -LocalPort 21213 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | cohesity-agent | Cohesity backup agents |
| UDP | – | Reserved |