ubuntu 18.04安装ssh

在 Ubuntu 18.04 上安装 SSH 非常简单，只需要执行以下命令：

1. 打开终端
2. 输入以下命令安装 SSH：`sudo apt-get install openssh-server`
3. 等待安装完成后，SSH 服务会自动启动。

现在你可以使用 SSH 客户端连接到 Ubuntu 18.04 上了。

相关问题

ubuntu18.04无法ssh

Ubuntu 18.04无法SSH可能有多种原因导致，以下是一些常见的解决方法：

1. 确保SSH服务器已安装：在终端中运行以下命令来安装OpenSSH服务器：

   sudo apt-get install openssh-server

2. 检查SSH服务是否正在运行：运行以下命令来检查SSH服务的状态：

   sudo service ssh status

如果服务未运行，可以使用以下命令启动它：

   sudo service ssh start

3. 检查防火墙设置：如果您的系统上启用了防火墙，确保允许SSH流量通过。默认情况下，SSH使用端口22。您可以使用以下命令检查防火墙规则：

   sudo ufw status

如果防火墙未允许SSH流量，可以使用以下命令启用它：

   sudo ufw allow ssh

4. 检查SSH配置文件：打开SSH配置文件`/etc/ssh/sshd_config`，确保以下行没有被注释掉：

   Port 22
   PermitRootLogin yes

5. 检查网络连接：确保您的Ubuntu系统与目标SSH服务器之间有网络连接，并且目标服务器的IP地址是正确的。

如果上述方法都无法解决问题，您可以尝试重新安装OpenSSH服务器或者查看系统日志以获取更多详细的错误信息。

ubuntu18.04离线安装ssh

### 回答1：
要在Ubuntu 18.04上离线安装SSH，您可以按照以下步骤操作：

1. 在另一台联网的计算机上下载SSH软件包及其所有依赖项。您可以使用以下命令将它们打包成一个tar文件：

sudo apt-get install openssh-server
sudo apt-get install openssh-client
sudo apt-get install ssh
sudo apt-get install sshpass
sudo apt-get install libssh2-1
sudo apt-get install libssh2-1-dev
sudo apt-get install libssh2-1-dbg
sudo apt-get install libssh2-1-doc
sudo apt-get install libssh2-1-test
sudo apt-get install libssh2-ocaml
sudo apt-get install libssh2-ocaml-dev
sudo apt-get install libssh-4
sudo apt-get install libssh-dev
sudo apt-get install libssh-doc
sudo apt-get install libssh-gcrypt-4
sudo apt-get install libssh-gcrypt-dev
sudo apt-get install libssh-gcrypt-doc
sudo apt-get install libssh-krb5-27
sudo apt-get install libssh-krb5-dev
sudo apt-get install libssh-krb5-doc
sudo apt-get install libssh-4-dbg
sudo apt-get install libssh-4-doc
sudo apt-get install libssh-4-dev
sudo apt-get install libssh-4-test
sudo apt-get install libssh-4-ocaml
sudo apt-get install libssh-4-ocaml-dev
sudo apt-get install libssh-4-ocaml-doc
sudo apt-get install libssh-4-ocaml-dbg
sudo apt-get install libssh-4-ocaml-test
sudo apt-get install libssh-4-ocaml-dev-doc
sudo apt-get install libssh-4-ocaml-dev-dbg
sudo apt-get install libssh-4-ocaml-dev-test
sudo apt-get install libssh-4-ocaml-dev-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-doc
sudo apt-get install libssh-4-ocaml-dev-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test
sudo apt-get install libssh-4-ocaml-dev-dbg-doc
sudo apt-get install libssh-4-ocaml-dev-test-dbg
sudo apt-get install libssh-4-ocaml-dev-dbg-doc
sudo apt-get install libssh-4-ocaml-dev-test-doc
sudo apt-get install libssh-4-ocaml-dev-test-dbg-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
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sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
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sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
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sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install libssh-4-ocaml-dev-dbg-test-doc
sudo apt-get install lib   

### 回答2：
要在Ubuntu 18.04上进行离线安装SSH，您需要以下步骤：

1. 下载必要软件包：您需要下载OpenSSH Server软件包以及其所有依赖项（包括libcrypt1和libc6）。您可以在其他电脑上下载这些软件包，并将它们复制到目标Ubuntu机器上。

2. 安装必要软件包：请使用dpkg命令（例如“ sudo dpkg -i openssh-server_7.6p1-4ubuntu0.3_amd64.deb”）来将软件包安装到Ubuntu系统中。如果出现错误，请使用apt-get命令来解决依赖问题。

3. 配置SSH：打开/etc/ssh/sshd_config文件并进行所需的更改。您可以更改端口，禁用root登陆，启用公钥验证等等。更改完成后，请使用命令“ sudo systemctl restart ssh”重启SSH服务。

4. 测试SSH：通过使用另一台电脑或工具（例如Putty）连接到Ubuntu机器来测试SSH连接。如果连接成功，则您现在可以通过SSH实现Ubuntu 18.04的远程访问和管理。

总之，在Ubuntu 18.04上离线安装SSH并不特别困难，只需遵循上述步骤即可实现成功安装。由于安全问题，请确保安装并配置SSH时使用安全的密码策略和基本安全知识，以最大限度地保护您的系统。   

### 回答3：
要在Ubuntu 18.04上离线安装SSH，您需要遵循以下步骤：

1.获取OpenSSH软件包：

您可以从官方Ubuntu软件包网站（https://packages.ubuntu.com/）或从其他Ubuntu软件包存储库下载OpenSSH软件包。最好选择与您的Ubuntu版本相匹配的OpenSSH软件包。您可以将软件包下载到本地系统或移动设备中。

2.在Ubuntu安装OpenSSH：

一旦您获得了OpenSSH软件包，您需要将其转移到Ubuntu系统中进行安装。如果您已经将软件包下载到本地系统中，在Ubuntu中打开终端并导航到软件包的目录。在那里，运行以下命令以安装OpenSSH：

sudo dpkg -i <openssh-package-name.deb>

这将安装OpenSSH并处理任何依赖项。请注意，如果OpenSSH需要其他软件包才能正常工作，则可能需要手动从其他Ubuntu存储库中获取这些软件包。

3.配置OpenSSH：

一旦OpenSSH安装完成，您需要在Ubuntu中配置它。打开终端并输入以下命令以在Ubuntu上配置OpenSSH：

sudo systemctl enable ssh

sudo systemctl start ssh

这将启用和启动SSH服务，并在Ubuntu开机时自动启动SSH服务。然后，您可以使用SSH客户端连接到Ubuntu系统。

总结：

通过遵循上述步骤，您可以在Ubuntu 18.04上离线安装和配置OpenSSH。这将允许您使用SSH客户端连接到Ubuntu系统并进行远程管理和文件传输。请注意，为了保持系统安全，您应该尽可能使用SSH密钥而不是密码进行身份验证。