How to use remote connection and SSH?

  1. Connect to a remote server - First, you need to identify the IP address or hostname of the remote server you want to connect to. This could be a cloud-based virtual machine, or a physical server located in a different office or data center. Once you have the IP address or hostname, you can use a tool like ping or traceroute to verify connectivity.

Example: If you want to connect to a remote server with IP address 192.168.1.100, you would use the following command to ping it from your local machine:

1
ping 192.168.1.100

If the server responds and you see a response like 64 bytes from 192.168.1.100: icmp_seq=1 ttl=64 time=0.564 ms, then you know that you can communicate with it.

  1. Install and configure an SSH client - SSH (Secure Shell) is a secure protocol for connecting to remote servers. Most Linux and macOS systems come with an SSH client pre-installed, but Windows users may need to install an SSH client like PuTTY or OpenSSH. Once you have an SSH client installed, you need to configure it with the IP address or hostname of the remote server.

Example: If you’re using the ssh command on a macOS or Linux system, you can connect to the remote server with the following command:

1
ssh user@192.168.1.100

Replace user with your username on the remote server. You will be prompted for your password before the connection is established.

  1. Use basic SSH commands - Once you’re connected to the remote server with SSH, you can use a variety of commands to navigate the file system, run commands, and manage files on the remote server.

Example: Here are a few basic SSH commands that you can use on the remote server:

  • ls - List all files and directories in the current directory
  • cd - Navigate to a different directory
  • mkdir - Create a new directory
  • touch - Create a new file
  • rm - Delete a file or directory
  • mv - Move a file or directory to a new location
  1. Transfer files with SCP - SCP (Secure Copy) is a command-line tool that allows you to transfer files securely between your local machine and the remote server.

Example: To transfer a file named example.txt from your local machine to the remote server, use the following command:

1
scp example.txt user@192.168.1.100:/path/to/destination

Replace user with your username on the remote server, and /path/to/destination with the path on the remote server where you want to copy the file to.

  1. Secure your SSH connection - To minimize the risk of unauthorized access to your SSH connection, you should take steps to secure it. This includes using strong passwords, enforcing two-factor authentication, and limiting access to trusted IP addresses.

Example: To enforce two-factor authentication on your SSH connection, you can configure your SSH client to use a public key as well as a password. This requires anyone connecting to the remote server to present both their password and their public key in order to be authenticated.