OpenSSH_7.2p2 Ubuntu-4ubuntu2.4, OpenSSL 1.0.2g  1 Mar 2016                                                             debug1: Reading configuration data /home/user/.ssh/config                                                              debug1: /home/user/.ssh/config line 1: Applying options for *IP*                                             debug1: /home/user/.ssh/config line 8: Applying options for *                                                          debug1: Reading configuration data /etc/ssh/ssh_config                                                                  debug1: /etc/ssh/ssh_config line 19: Applying options for *                                                             debug1: Executing proxy command: exec nc 185.65.102.130 5819 remote_user                                                    debug1: permanently_drop_suid: 1000                                                                                     debug1: identity file /home/user/.ssh/id_rsa type 1                                                                    debug1: key_load_public: No such file or directory                                                                      debug1: identity file /home/user/.ssh/id_rsa-cert type -1                                                              debug1: key_load_public: No such file or directory                                                                      debug1: identity file /home/user/.ssh/id_dsa type -1                                                                   debug1: key_load_public: No such file or directory                                                                      debug1: identity file /home/user/.ssh/id_dsa-cert type -1                                                              debug1: key_load_public: No such file or directory                                                                      debug1: identity file /home/user/.ssh/id_ecdsa type -1                                                                 debug1: key_load_public: No such file or directory                                                                      debug1: identity file /home/user/.ssh/id_ecdsa-cert type -1                                                            debug1: key_load_public: No such file or directory                                                                      debug1: identity file /home/user/.ssh/id_ed25519 type -1                                                               debug1: key_load_public: No such file or directory                                                                      debug1: identity file /home/user/.ssh/id_ed25519-cert type -1                                                          debug1: Enabling compatibility mode for protocol 2.0                                                                    debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.4                                                    nc: getaddrinfo: Servname not supported for ai_socktype                                                                 ssh_exchange_identification: Connection closed by remote host