core@ip-172-31-1-64 ~ $ systemctl status sshd@2505-172.31.1.64:22-61.164.126.20:1346.service
● sshd@2505-172.31.1.64:22-61.164.126.20:1346.service - OpenSSH per-connection server daemon
   Loaded: loaded (/usr/lib64/systemd/system/sshd@.service; static; vendor preset: disabled)
  Drop-In: /usr/lib64/systemd/system/sshd@.service.d
           └─sshd-keygen.conf
   Active: failed (Result: resources)

Jul 16 14:27:42 ip-172-31-1-64.ec2.internal systemd[1]: sshd@2505-172.31.1.64:22-61.164.126.20:1346.service: Failed to run 'start' task: Transport endpoint is not connected
Jul 16 14:27:42 ip-172-31-1-64.ec2.internal systemd[1]: Failed to start OpenSSH per-connection server daemon (61.164.126.20:1346).
Jul 16 14:27:42 ip-172-31-1-64.ec2.internal systemd[1]: sshd@2505-172.31.1.64:22-61.164.126.20:1346.service: Unit entered failed state.
Jul 16 14:27:42 ip-172-31-1-64.ec2.internal systemd[1]: sshd@2505-172.31.1.64:22-61.164.126.20:1346.service: Failed with result 'resources'.
Jul 16 14:27:42 ip-172-31-1-64.ec2.internal systemd[1]: Starting OpenSSH per-connection server daemon (61.164.126.20:1346)...