Enable SSH login to Ubuntu by root user

In Ubuntu 16.04 by default root login by SSH is blocked for security reason. To enable root to login by SSH we have to update the ssh configuration. NOTE: This may make your server insecure for hackers so just enable root login temporarily if needed. /etc/ssh# ssh root Permission denied (publickey). Next edit the file:  /etc/ssh# vi sshd_config Change the following … Continue reading Enable SSH login to Ubuntu by root user

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Let’s Encrypt free SSL certificate authority (CA)

Let’s Encrypt is a free, automated, and open certificate authority (CA), run for the public’s benefit. It is a service provided by the Internet Security Research Group (ISRG). The key principles behind Let’s Encrypt are: Free: Anyone who owns a domain name can use Let’s Encrypt to obtain a trusted certificate at zero cost. Automatic: Software running on … Continue reading Let’s Encrypt free SSL certificate authority (CA)

Enable Linux subsystem on Windows

We need to enable Windows Subsystem for Linux (Beta) which is basically Ubuntu linux on Windows. 1. Before installing the Linux Subsystem, you have to have: Windows 10 (Anniversary update or later version) 64-bit installation (can’t run on 32-bit systems) 2. Go to Windows Settings and click on pushbutton to Enable developer mode. It may … Continue reading Enable Linux subsystem on Windows