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#lsof

bind() to 0.0.0.0:80 failed (98: Address already in use)
Networking

"Address already in use": find who is using port 80 (or any port)

Fix "bind() failed (98: Address already in use)": find the process holding the port with ss or lsof, then stop it, move it, or change your port.

Beginner · 4 min read