POSIX 61 Connection Refused Error Explained: 5 Causes and Server-Side Fixes for Developers
When a client application attempts to connect to a server and receives a “POSIX 61: Connection Refused” error, the failure is immediate and explicit: the target machine is reachable, but no process is accepting connections on the specified port. Unlike timeouts, which suggest packet loss or filtering, a connection refused error is an active rejection….
