In recent times, there is an increasing need for organizations to give employees access to their IT facilities due to the ongoing Covid restrictions ( such as work from home ) in place and in other cases grant access to external parties like clients, vendors who want to troubleshoot and fix issues with the IT
Secure Shell or SSH is a network protocol that helps the users, mainly system administrators to securely access the remote computer over an unsecured network. SSH is the current de-facto method of remote server administration. Before SSH, telnet and rlogin were the primary tools for remote administration. SSH was a game-changer in the computing industry.
Introduction Secure or harden the SSH server has become a very important security concern as it acts as the entry point or gateway to remote servers. SSH protocol is widely used by the system administrators to manage the linux servers remotely. By default, port 22 is used for SSH. In this blog post, we will
SSH key based authentication is the default method that any Linux admin would choose for granting ssh access to Linux servers or Linux cloud instances. SSH key based authentication is the preferred method since its far more secure and more popular than password based authentication. The two commonly used keys for authentication are RSA and
SSH BRUTEFORCE ATTACK: How to defend against it effectively? Hackers frequently target Linux servers and try to bruteforce the ssh daemon running on it. If the root password that you have set is weak , the hackers would quickly gain access to your Linux server and your machines could be part of wider bot network,
Enable a firewall and by default block all IP access to the SSH Port and enable only your staff ips or dynamic ip ranges that you trust. Disable direct root login. Its always better to login as a non privileged user first and the switch to the root user. This is the norm if you
