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  • Connection closing...Socket close. Connection closed by foreign host. Disconnected from remote host(centos6.9) at 14:59:05.

    查找网上资料解决方法如下

    [root@localhost ssh]# service sshd start
    Starting sshd: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
    @         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
    Permissions 0622 for '/etc/ssh/ssh_host_rsa_key' are too open.#密钥文件权限不能为0644,0644权限太开放了,要求你的密钥文件不能被其它用户读取
    It is required that your private key files are NOT accessible by others.
    This private key will be ignored.
    bad permissions: ignore key: /etc/ssh/ssh_host_rsa_key
    Could not load host key: /etc/ssh/ssh_host_rsa_key
    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
    @         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
    Permissions 0622 for '/etc/ssh/ssh_host_dsa_key' are too open.
    It is required that your private key files are NOT accessible by others.
    This private key will be ignored.
    bad permissions: ignore key: /etc/ssh/ssh_host_dsa_key
    Could not load host key: /etc/ssh/ssh_host_dsa_key
    /var/empty/sshd must be owned by root and not group or world-writable.
                                                               [FAILED]
    [root@localhost ssh]# chmod 700 /etc/ssh/ssh_host_rsa_key  #修改一下密钥文件权限。
    [root@localhost ssh]# service ssh restart
    ssh: unrecognized service
    [root@localhost ssh]# /etc/init.d/sshd restart
    Stopping sshd:                                             [FAILED]
    Starting sshd: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
    @         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
    Permissions 0622 for '/etc/ssh/ssh_host_dsa_key' are too open.
    It is required that your private key files are NOT accessible by others.
    This private key will be ignored.
    bad permissions: ignore key: /etc/ssh/ssh_host_dsa_key
    Could not load host key: /etc/ssh/ssh_host_dsa_key
    /var/empty/sshd must be owned by root and not group or world-writable.
                                                               [FAILED]
    [root@localhost ssh]# chmod 700 ssh_host_rsa_key
    [root@localhost ssh]# chmod 700 ssh_host_dsa_key
    [root@localhost ssh]# service sshd restart
    Stopping sshd:                                             [FAILED]
    Starting sshd: /var/empty/sshd must be owned by root and not group or world-writable.#也是权限的问题
                                                               [FAILED]
    [root@localhost ssh]# vim sshd_config
    [root@localhost ssh]# chown -R root.root /var/empty/sshd
    [root@localhost ssh]# chmod 744 /var/empty/sshd
    [root@localhost ssh]# service sshd restart
    Stopping sshd:                                             [FAILED]
    Starting sshd:                                             [  OK  ]
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  • 原文地址:https://www.cnblogs.com/someone9/p/8820591.html
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