Secure Shell (SSH) is a cryptographic network protocol designed to provide secure communication over an unsecured network. Initially developed as a secure alternative to Telnet and other insecure remote login protocols, SSH has become a standard f...
The SSH handshake process is a series of steps that occur when a client initiates a connection to an SSH server. This process establishes a secure communication channel between the client and server, ensuring confidentiality and integrity. Here's...
SSH (Secure Shell) has evolved over the years, and two main versions, SSH-1 and SSH-2, have been developed. SSH-2 is the more modern and widely used version, while SSH-1 is considered obsolete and insecure. Here are the key differences between SSH...
To install the SSH server on a Debian-based system, you can use the following steps. Open a terminal on your Debian machine and follow these commands:I. Install1. Update the package repository information:sudo apt update2. Install the OpenSSH serv...
Configuring and securing password authentication in SSH involves adjusting the settings in the SSH server configuration file (sshd_config). Here's a step-by-step guide to help you configure and enhance the security of password authentication:1. Op...
Creating SSH key pairs involves generating a pair of cryptographic keys: a public key and a private key. The public key is shared with the server, while the private key is kept secure on your local machine. Here's how you can create SSH key pairs:...
Managing SSH keys involves tasks such as adding removing unwanted keys, and securing keys to prevent unauthorized access.1. Listing SSH Keys:If you want to list the SSH keys present in the authorized_keys file on the server, you can do so using th...
SSH provides a feature called port forwarding, which allows you to create secure tunnels for forwarding network connections from your local machine to a remote server and vice versa. There are two types of port forwarding: local port forwarding an...
Dynamic port forwarding, also known as dynamic tunneling or SSH tunneling as a proxy, is a powerful feature of SSH that allows you to create a secure and encrypted SOCKS proxy server. This proxy server can then be used to route your internet traff...
The SSH agent is a program that runs in the background and helps you manage your SSH keys. It holds your private keys in memory, allowing you to use them to authenticate to remote servers without having to re-enter your passphrase each time. Here'...
Restricting access based on IP addresses is a common security practice to control which computers or networks are allowed to connect to a particular service. In the context of SSH, you can restrict access to your server by specifying the IP addres...