Configure SSH Key Authentication

Configure SSH Key Authentication

Introduction: SSH Key Authentication is a way to log in any Linux server without any password. This authentication process uses public and private key instead of password. When a client attempts to authenticate using SSH keys, the server will test the client on whether they have the private key. If the client can prove that it owns the private key, a shell session is spawned or the requested command is executed. Continue reading

Allow Root Login Over SSH Ubuntu 16.04 LTS

Allow Root Login Over SSH Ubuntu 16.04 LTS

This article is follow up of Enable root login on Ubuntu 16.04 LTS. Assume that you have already set the password for your root account. It will help you allow to login as root over SSH. SSH stands for Secure Shell that is a cryptographic network protocol for operating network services securely over an unsecured network. For example, remote login to computer systems by users. SSH works over port 22. As usual, for better security root ssh access is set as by default “Prohibit-password",That means to you is that, if you are trying to ssh to your server with your root account and password, you will receive an access denied error. Continue reading

Top 5 System Monitoring Tools on Linux

Top 5 System Monitoring Tools on Linux

System Monitoring is a routine task for a system administrator. As a system administrator, you’ll need the ability to find out what is happening on your system at any time. Whether it is the percent of CPU uses, Percent of Memory uses. What process consuming more or less memory or CPU, how many users and who logged in your system etc. System monitoring play very important role when a program malfunction. Continue reading


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