Port 10050: Zabbix agent
Port 10050 is the default port for the Zabbix monitoring agent, which runs on a monitored host and answers requests from the Zabbix server. It is a project convention rather than an IANA assignment.
| Port number | 10050 |
|---|---|
| Service | Zabbix agent |
| Protocol | TCP |
| Category | Management |
| Default encryption | No |
How do I check whether port 10050 is open?
Port 10050 carries TCP, so a connection either completes its handshake or it does not, which makes the check definitive.
| Question | Command | What to know |
|---|---|---|
| Is it open on a remote host? | nc -vz example.com 10050 | A TCP handshake either completes or it does not, so netcat gives a definitive answer in one line. |
| Same check on Windows | Test-NetConnection example.com -Port 10050 | Built into PowerShell. TcpTestSucceeded in the output is the answer; telnet is not installed by default on modern Windows. |
| What is listening locally? | ss -tlnp | grep ':10050 ' | Lists the process bound to port 10050 on Linux. On macOS use lsof -nP -iTCP:10050 -sTCP:LISTEN, on Windows netstat -ano | findstr :10050 |
Replace example.com with the host you are testing. A blocked port and a port with nothing listening on it look identical from the outside, so if a service should be running, check locally before blaming the firewall.
Frequently asked questions
What is port 10050 used for?
Port 10050 is the default port for the Zabbix monitoring agent, which runs on a monitored host and answers requests from the Zabbix server. It is a project convention rather than an IANA assignment.
Is port 10050 TCP or UDP?
Port 10050 (Zabbix agent) uses TCP.
Is port 10050 secure?
Port 10050 is not encrypted by default. Where possible, use an encrypted alternative or tunnel it over TLS or a VPN.
Should I open port 10050 on my firewall?
Only if you specifically need Zabbix agent. Expose it to the smallest set of trusted sources, and never open database or Windows-service ports to the whole internet.