Change the default SSH port

Change the default SSH port

This post is about how to change the default SSH port in Linux, however, before we how we need to see why. Why should you change the default SSH port in Linux? The main reason to change the default SSH port from 22 to something else is to prevent servers from SSH attacks. Port 22 … Read more

Basic OpenSSL Commands

Basic OpenSSL Commands

OpenSSL is an open-source implementation of the SSL protocol. It is widely used and it has different functions which allow you to check CSR, Certificate, and expiry. Let’s see some Basic Openssl Commands, which will be used in your daily life. Here are some basic open commands which will be useful when you are dealing … Read more

Set alerts for root login

Set alerting for root login

So we have already disabled direct root Login and already set password-less authentication on our Linux server. However, we need to go a step ahead and need set alerts for the root login. Setting alerts for root account login is useful in many ways. To track when your server has been logged in. Unauthorized logins … Read more

Password less authentication

Password less authentication

Imagine you have 100 Linux servers to manage, and you keep typing in passwords each time you log in to a server, and it would be a nightmare. Hence, most system administrators set up password-less authentication on Linux servers. It is always a good practice to set up SSH keys for authentication, which is also … Read more