【发布时间】：2016-11-04 12:55:43
【问题描述】：
我正在尝试从另一台 linux 机器 ssh 进入我自己的笔记本电脑（Ubuntu 14.04）。我收到错误“连接由IP 关闭”，其中IP 是我的笔记本电脑的IP 地址。这是详细输出（$HOME 是主目录）：
$ ssh kaiyu@LAPTOP_IP -p 24 -vvv
OpenSSH_6.6.1, OpenSSL 1.0.1e-fips 11 Feb 2013
debug1: Reading configuration data $HOME/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 56: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to LAPTOP_IP [LAPTOP_IP] port 24.
debug1: Connection established.
debug3: Incorrect RSA1 identifier
debug3: Could not load "$HOME/.ssh/id_rsa" as a RSA1 public key
debug1: identity file $HOME/.ssh/id_rsa type 1
debug1: identity file $HOME/.ssh/id_rsa-cert type -1
debug1: identity file $HOME/.ssh/id_dsa type -1
debug1: identity file $HOME/.ssh/id_dsa-cert type -1
debug1: identity file $HOME/.ssh/id_ecdsa type -1
debug1: identity file $HOME/.ssh/id_ecdsa-cert type -1
debug1: identity file $HOME/.ssh/id_ed25519 type -1
debug1: identity file $HOME/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.6.1
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.8
debug1: match: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.8 pat OpenSSH_6.6.1* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug3: put_host_port: [LAPTOP_IP]:24
debug3: load_hostkeys: loading entries for host "[LAPTOP_IP]:24" from file "/homes/iws/qaz2wsx3/.ssh/known_hosts"
debug3: load_hostkeys: loaded 0 keys
debug1: SSH2_MSG_KEXINIT sent
Connection closed by LAPTOP_IP
我在网上找不到如何解决此问题。当我尝试在自己的笔记本电脑上 ssh localhost 时，我得到完全相同的调试输出，但错误消息是 Read from socket failed: Connection reset by peer。
虽然在调试输出中，有一行写着Could not load "$HOME/.ssh/id_rsa" as a RSA1 public key，根据这个answer，这个信息是正常的。
以下是有关我的设置的一些附加信息：
OpenSSH 版本：SSH-2.0-OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.8
sshd_config：
Port 24
AuthenticationMethods publickey
# ListenAddress 192.168.1.1
HostKey /etc/ssh/ssh_host_key
ServerKeyBits 1024
LoginGraceTime 600
KeyRegenerationInterval 3600
PermitRootLogin no
IgnoreRhosts yes
IgnoreUserKnownHosts no
StrictModes yes
X11Forwarding yes
PrintMotd yes
SyslogFacility AUTH
LogLevel INFO
RhostsAuthentication no
RhostsRSAAuthentication no
RSAAuthentication yes
PasswordAuthentication yes
PermitEmptyPasswords yes
这个配置有什么问题吗？为什么会发生这个错误，为什么会在SSH2_MSG_KEXINIT sent 之后发生？如何解决这个问题？
衷心感谢！
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