Why Does a Linux Server Show a Service as Active but Not Accept Requests?

A process can be active while listening on the wrong address, port, or protocol, or while its application handler is unable to serve work.

What to check

Check listening sockets, service logs, bind address, port conflicts, local firewall, upstream proxy health, and application readiness. Test locally and from the intended network path.

Recommended next step

Trace the request path to the first failing layer and adjust only the verified cause. Informatix Systems can troubleshoot Linux services and networking.