无法 SSH 本地主机

Question

我无法 SSH 本地主机。我已经在我的 Ubuntu 12.04 LTS（32 位）上安装了 OpenSSH 服务器。

连接到网络（ip：192.168.1.2）安装了hadoop，为本地机器运行hadoop。

这是我得到的：

root@kunal-Extensa-4620:/# ssh -vvv localhost
OpenSSH_5.9p1 Debian-5ubuntu1.1, OpenSSL 1.0.1 14 Mar 2012
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to localhost [127.0.0.1] port 22.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: identity file /root/.ssh/id_rsa type -1
debug1: identity file /root/.ssh/id_rsa-cert type -1
debug1: identity file /root/.ssh/id_dsa type -1
debug1: identity file /root/.ssh/id_dsa-cert type -1
debug1: identity file /root/.ssh/id_ecdsa type -1
debug1: identity file /root/.ssh/id_ecdsa-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9p1 Debian-5ubuntu1.1
debug1: match: OpenSSH_5.9p1 Debian-5ubuntu1.1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1.1
debug2: fd 3 setting O_NONBLOCK
debug3: load_hostkeys: loading entries for host "localhost" from file "/root/.ssh/known_hosts"
debug3: load_hostkeys: loaded 0 keys
debug1: SSH2_MSG_KEXINIT sent
Read from socket failed: Connection reset by peer

Answer 1

在评论中，您的 OpenSSH 服务器配置文件 ( /etc/ssh/sshd_config)似乎是空的。通过清除并重新安装来重新安装配置文件：

1. 删除配置文件：

   sudo rm /etc/ssh/sshd_config
   

2. 清除：

   sudo apt-get purge openssh-server
   

3. 安装：

   sudo apt-get install openssh-server
   

这可能不起作用，相反，请遵循：如何恢复配置文件？