sudo apt-get install openssh-server openssh-client

`sudo apt-get install openssh-server openssh-client` 是在Linux系统中使用apt包管理器安装SSH服务器（openssh-server）和SSH客户端（openssh-client）的命令。SSH (Secure Shell) 是一种安全的远程登录协议，允许用户通过网络连接到另一台机器并执行命令。

以下是安装过程的简单说明：

1. 打开终端（Terminal）。
2. 使用管理员权限运行 `sudo` 命令，输入你的密码以获得root权限（如果尚未配置过无密码登录，此步骤必不可少）[^4]。

   sudo -i 或者 输入密码: 

3. 运行 `apt-get` 更新软件包列表，以确保你正在安装的是最新版本。

   apt-get update

4. 安装SSH服务器和客户端：

   apt-get install openssh-server openssh-client

5. 安装完成后，SSH服务会自动启动。你可以通过运行 `ssh-keygen` 自动创建SSH密钥对，或者手动编辑 `/etc/ssh/sshd_config` 文件来配置更多选项。

相关问题

sudo apt-get install xshell

I'm sorry but `xshell` is not available through `apt-get` command. `xshell` is actually a proprietary SSH client software for Windows. If you want to install a SSH client on Ubuntu, you can use `openssh-client` which is already included in Ubuntu. You can install it by running the following command in the terminal:

sudo apt-get install openssh-client

Alternatively, you can use other SSH clients such as `PuTTY` or `MobaXterm`.

• Install OpenSSH on one Linux VM, check the service status and then connect to it using the ssh client from the other Linux VM.

To install OpenSSH on a Linux VM, you can follow these steps:

1. Open the terminal on the Linux VM.

2. Update the package list by running the following command:

   sudo apt-get update

3. Install OpenSSH by running the following command:

   sudo apt-get install openssh-server

4. Once the installation is complete, check the service status by running the following command:

   sudo systemctl status ssh

This command will display the status of the OpenSSH service. If the service is active, it means that OpenSSH is installed and running on the VM.

5. Now, you can connect to the Linux VM using the SSH client from another Linux VM. To do this, open the terminal on the other Linux VM and run the following command:

   ssh <username>@<ip_address>

Replace `<username>` with the username of the user on the Linux VM that has OpenSSH installed and running, and `<ip_address>` with the IP address of the Linux VM.

For example, if the username is `ubuntu` and the IP address is `192.168.1.100`, the command would be:

   ssh ubuntu@192.168.1.100

6. If this is the first time you are connecting to the Linux VM, you may be prompted to add the server's host key to your list of known hosts. Type `yes` to continue.

7. You will then be prompted to enter the password for the user on the Linux VM. Enter the password and press Enter.

8. You should now be connected to the Linux VM via SSH. You can run commands on the remote machine as if you were logged in directly.