Remote Access Tools and SSH Functionality

Remote Access Tools

• SSH (Secure Shell) is used for managing Linux servers remotely.
• Samba is used for sharing folders between Linux and other systems.
• SCP (Secure Copy) is used for copying files between Linux systems.
• WinSCP is a tool for sharing files between Windows and other systems.
• Network commands for Ubuntu include ip addr show.
• Windows uses ipconfig /all to find IP and MAC addresses.

SSH Functionality

• SSH provides a secure connection (secure shell).
• It acts as a replacement for telnet.
• Uses cryptographic key-based authentication (DSA, RSA).
• Operates using OpenSSH servers.

SSH Client

• Used to connect to remote servers.
• Example command format: ssh -l username server_address
• (Example): ssh -l student 192.168.0.1
• exit command ends the SSH session.
• Putty is a Windows equivalent of SSH clients.

SCP Tool

• SCP is used for secure copying of files between computers.
• Copying from a remote host to local: scp username@server_address:/path/to/file local_path/
• Copying from local to a remote host: scp local_file username@server_address:/path/to/remote_directory
• Example: scp file.txt username@server_address:/home/destination_directory/folder
• WinSCP is the Windows equivalent of SCP.

Samba (Version 1)

• Samba is used for sharing folders between different operating systems (e.g., Linux and Windows).
• Configuration involves installing Samba package (apt install samba).
• Creating a shared directory: mkdir ~/shared_directory/
• Modifying Samba configuration file (/etc/samba/smb.conf): add parameters such as [sambashare], comment =, path = /home/user/shared_directory/ ,read only = no, browseable = yes.

Samba (Version 2)

• Restarting the Samba service is done using systemctl restart smbd.
• Samba needs to be configured to allow through firewall (ufw allow samba).
• Setting a password for the Samba service: smbpasswd -a username
• Accessing the shared folder using alternative ways (e.g., file explorer).
• Windows equivalents are \\server_name\shared_folder.

This quiz covers essential remote access tools such as SSH, SCP, and Samba, focusing on managing Linux servers and file sharing between systems. Learn the secure methods used for connecting and transferring files, as well as the commands involved in both Linux and Windows environments.