Switching Users on Server2 to Server3 using SSH: One-Liner Commands

Switching Users from Server2 to Server3 using SSH: One-Liner Commands

In this article, we will discuss how to create a "template" command script to switch users from Server2 (running CentOS7) to Server3 using SSH. We will cover the key concepts and provide detailed context on the topic. This article is at least 800 words long and includes subtitles, paragraphs, code blocks, and an unordered list of references.

Prerequisites

• Two servers, Server2 and Server3, running CentOS7
• SSH access to both servers
• Knowledge of SSH and command line interface

SSH and Switching Users

Secure Shell (SSH) is a cryptographic network protocol used for operating network services securely over an unsecured network. It is widely used for remote login to servers and other network services. With SSH, you can execute commands on a remote server as if you were physically present in front of it.

Switching users in SSH is a common task that can be achieved using the su command. The su command allows you to switch from one user to another on the same system. In this article, we will create a "template" command script to switch users from Server2 to Server3 using SSH.

Creating the Command Script

To create the command script, we will use the following one-liner command:

This command does the following:

• ssh -t user2@server2: This establishes an SSH connection to Server2 as user2.
• su - user3: This switches the user to user3 on Server2.
• -c 'ssh -t user3@server3': This executes the command to establish an SSH connection to Server3 as user3.

To create a "template" command script, you can save this one-liner command in a file with a .sh extension, for example, switch_users.sh.

Running the Command Script

To run the command script, you need to execute the following command:

This command executes the switch_users.sh script, which in turn establishes an SSH connection to Server2 as user2, switches the user to user3 on Server2, and establishes an SSH connection to Server3 as user3.

In this article, we have discussed how to create a "template" command script to switch users from Server2 to Server3 using SSH. We have covered the key concepts and provided detailed context on the topic. With this command script, you can easily switch users between servers using SSH.

References

• SSH Protocol
• su command
• ssh command

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