Port 10051: Zabbix server
Port 10051 is the default Zabbix server port, used both for agents sending trapper items and for the server itself. It pairs with the agent port 10050 to make up the standard Zabbix monitoring stack.
TCPManagementUnencrypted by default
| Port number | 10051 |
|---|---|
| Service | Zabbix server / trapper |
| Protocol | TCP |
| Category | Management |
| Default encryption | No |
Security note. Port 10051 is not encrypted by default. Restrict it to trusted networks, or use an encrypted alternative where one exists, to avoid exposing credentials and data in transit.
Frequently asked questions
What is port 10051 used for?
Port 10051 is the default Zabbix server port, used both for agents sending trapper items and for the server itself. It pairs with the agent port 10050 to make up the standard Zabbix monitoring stack.
Is port 10051 TCP or UDP?
Port 10051 (Zabbix server) uses TCP.
Is port 10051 secure?
Port 10051 is not encrypted by default. Where possible, use an encrypted alternative or tunnel it over TLS or a VPN.
Should I open port 10051 on my firewall?
Only if you specifically need Zabbix server. Expose it to the smallest set of trusted sources, and never open database or Windows-service ports to the whole internet.