Port 3306 - Port Encyclopedia Справка Русский
Русский page. Port 3306 reference for Port Encyclopedia. Check meaning, syntax, common usage, related standards, and practical implementation notes. С русским контекстом...
What Port 3306 is used for
Port 3306 is commonly associated with MySQL and MariaDB database access. The number alone is not enough for diagnosis. Check the protocol, direction, listening process, and network boundary together.
The main risk for this port is public database exposure and weak application credentials. In production, first decide whether the service should exist, then match firewall rules, ingress routing, security groups, and service configuration against the same evidence.
Practical check: bind to private networks, restrict users by host, and require TLS where possible. Port 443 and Port 5432 may belong to different service families, so do not close every port scan finding with the same generic fix.
Port 3306 should be reviewed with the actual listener, protocol, owner, and exposure path in front of you. The same number can mean a local development service, a private backend dependency, or a public production endpoint.
Close the finding only after the intended clients, firewall rules, logs, and rollback path are documented. A port page is useful when it turns a scan result into a concrete operational decision.
Port checklist
- Port 3306 has a confirmed TCP, UDP, or dual-protocol requirement.
- The listening process and container are mapped to a service owner.
- Firewall, ingress, and cloud security rules point to the same intended target.
- External exposure includes TLS, authentication, and logging where needed.
Example searches
- mysql port 3306 exposed
- is Port 3306 secure
- Port 3306 firewall
- what service uses Port 3306
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