我正在尝试 ssh 到与我的 Ubuntu 不同的系统，但在这个日志之后它被卡住了
root@akash:~# ssh -vvv [email protected]
OpenSSH_7.2p2 Ubuntu-4ubuntu2.2, OpenSSL 1.0.2g 1 Mar 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "192.168.2.219" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to 192.168.2.219 [192.168.2.219] port 22.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: identity file /root/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.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-4ubuntu2.2
一段时间后，我连接超时。我通过ssh-keygen -t rsa在两台机器上生成了新的 ssh RSA 密钥，然后将我的公钥复制id_rsa.pub到远程机器的文件中authorized_keys，反之亦然。
现在，一台机器可以轻松登录，但另一台机器不能登录。
谁能告诉我如何解决这个问题？