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Is RDP or SSH better?
The choice between RDP and SSH depends on the specific use case and requirements. RDP (Remote Desktop Protocol) is typically used for accessing graphical user interfaces on Windows systems, making it more user-friendly for tasks that require a GUI. On the other hand, SSH (Secure Shell) is a more secure and versatile option for accessing and managing remote systems, especially for command-line tasks on various operating systems. Ultimately, the better option will depend on factors such as security needs, system requirements, and user preferences.
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What is an SSH timeout?
An SSH timeout occurs when a Secure Shell (SSH) connection is terminated due to inactivity or a delay in communication between the client and server. This can happen if there is a network issue, the server is overloaded, or the client is unresponsive. The timeout setting determines how long the connection can remain idle before it is closed. It is a security measure to prevent unauthorized access and to free up resources on the server.
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How does access work in SSH?
In SSH (Secure Shell), access is controlled through the use of public key cryptography. When a user wants to access a remote server, they generate a pair of cryptographic keys - a public key and a private key. The public key is placed on the server, while the private key is kept secure on the user's local machine. When the user attempts to connect to the server, the server uses the public key to encrypt a challenge, which the user must decrypt using their private key. If the user is able to successfully decrypt the challenge, they are granted access to the server. This method of access control provides a secure and reliable way for users to authenticate themselves to a remote server.
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How do I deactivate the SSH password?
To deactivate the SSH password, you can disable password authentication and use key-based authentication instead. This can be done by editing the SSH configuration file (/etc/ssh/sshd_config) and setting "PasswordAuthentication" to "no". After making this change, you will need to restart the SSH service for the changes to take effect. Once this is done, users will no longer be able to authenticate using passwords and will need to use SSH keys for authentication.
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Why is the SSH key not working?
The SSH key may not be working due to several reasons. It could be that the SSH key is not properly configured on the server or the client. Another reason could be that the SSH key has been revoked or expired. Additionally, there may be a mismatch between the public and private keys. It is also possible that the SSH service is not running on the server or the client is not using the correct SSH key. Troubleshooting these potential issues can help identify why the SSH key is not working.
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Is it possible to trace back SSH?
Yes, it is possible to trace back SSH connections. When a user connects to a server using SSH, the server logs the connection details including the user's IP address, the time of the connection, and other relevant information. This information can be used to trace back the SSH connection to the originating user or system. Additionally, network administrators can use tools and techniques such as packet sniffing, network monitoring, and log analysis to trace back SSH connections.
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How can I open programs via SSH?
To open programs via SSH, you can use the command line to remotely access the server and run the desired program. First, you need to establish an SSH connection to the server using the `ssh` command followed by the server's IP address or domain name. Once connected, you can use the `ssh` command to run the program by specifying the program's path and any necessary arguments. For example, to open a text editor like nano, you can simply type `nano` and press enter. Keep in mind that some programs may require additional configurations or permissions to run via SSH.
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How do I disable the SSH password?
To disable SSH password authentication, you can edit the SSH configuration file located at /etc/ssh/sshd_config. Look for the line that says "PasswordAuthentication" and change the value to "no". Save the file and then restart the SSH service for the changes to take effect. This will disable password authentication for SSH, requiring users to use SSH keys for authentication instead.
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How can I transfer data over SSH?
To transfer data over SSH, you can use the SCP (Secure Copy) command. This command allows you to securely transfer files and directories between a local and remote machine. The basic syntax for using SCP is "scp [source] [destination]", where the source can be a local file or directory, and the destination can be a remote server address. You will need to have SSH access to the remote server and the necessary permissions to transfer the data.
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How are SSH keys stored in PuTTY?
In PuTTY, SSH keys are stored in a file with a .ppk extension. These files contain the private key used for authentication. When you create or import an SSH key in PuTTY, it is saved as a .ppk file on your local machine. PuTTY also allows you to securely store and manage these keys using the Pageant key agent, which can hold multiple SSH keys and provide them to PuTTY when needed for authentication.
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How can I open the SSH port?
To open the SSH port, you will need to access your server's firewall settings. If you are using a Linux server, you can use the command line to open the SSH port by adding a rule to the firewall. For example, on Ubuntu, you can use the command "sudo ufw allow ssh" to open the SSH port (port 22) using the Uncomplicated Firewall. If you are using a different firewall, you will need to consult the documentation for that specific firewall to open the SSH port. Keep in mind that opening the SSH port can expose your server to potential security risks, so it's important to ensure that your server is properly secured before opening the port.
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Is SSH a must-have for cybersecurity?
Yes, SSH (Secure Shell) is considered a must-have for cybersecurity. It provides a secure way to access and manage remote systems, encrypting data and providing authentication to prevent unauthorized access. SSH helps protect against eavesdropping, man-in-the-middle attacks, and other security threats that can compromise sensitive information. By using SSH, organizations can ensure secure communication and data transfer, making it an essential tool for maintaining cybersecurity.
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