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ssh 服务器安装期间出错：连接到主机 localhost 端口 22：连接被拒绝

tag-icon • tag-icon server ssh dpkg hadoop
ssh 服务器安装期间出错：连接到主机 localhost 端口 22：连接被拒绝

我正在尝试安装 openssh-server。最后我收到错误：

ssh.service - OpenBSD Secure Shell server
   Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enabled)
   Active: activating (auto-restart) (Result: exit-code) since Thu 2020-02-06 13:52:20 +04; 9ms ago
  Process: 17679 ExecStartPre=/usr/sbin/sshd -t (code=exited, status=255)
dpkg: error processing package openssh-server (--configure):
 subprocess installed post-installation script returned error exit status 1
Setting up ssh-import-id (5.5-0ubuntu1) ...
Processing triggers for ureadahead (0.100.0-19.1) ...
Processing triggers for systemd (229-4ubuntu21.27) ...
Processing triggers for ufw (0.35-0ubuntu2) ...
Rules updated for profile 'Apache Full'
Firewall reloaded
Errors were encountered while processing:
 openssh-server
E: Sub-process /usr/bin/dpkg returned an error code (1)

答案1

检查你的 dpkg 日志/var/log/dpkg.log。它可能会给你更多的信息。

通读安装后脚本，看看您是否能理解它在做什么。您可以在 中找到它/var/lib/dpkg/info/openssh-server.postinst。

检查脚本失败的原因：

dpkg --configure -D 777 openssh-server

答案2

重启 ssh：

sudo service ssh restart

然后运行：

ssh localhost

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