How to Check If a Port Is Open
Step-by-step guide to testing TCP port connectivity for any host using the DevHexLab Port Checker tool.
Tool Used
Port Checker
1
Open the Port Checker
Navigate to /tools/developer/port-checker.
2
Enter the host
Type the hostname or IP address of the server you want to test.
3
Enter the port number
Type the port number you want to check. Common ports: 80 (HTTP), 443 (HTTPS), 22 (SSH), 3306 (MySQL), 5432 (PostgreSQL), 6379 (Redis).
4
Check
Click Check. The tool attempts a TCP connection and reports whether the port is open (accepting connections) or closed/filtered.
All done!
You are ready to use Port Checker like a pro.