Google Compute Engine scp Files on a Linux or Unix or Mac OS X

S cp command copies files between hosts on a network using ssh for data transfer. How do I use scp toefacilitate the remote file transfer using Google Compute Engine virtual machines on a Linux, OS…

How To Patch and Protect OpenSSH Client Vulnerability CVE-2016-0777 and CVE-2016-0778 [ 14/Jan/2016 ]

T he OpenSSH project released an ssh client bug info that can leak private keys to malicious servers. A man-in-the-middle kind of attack identified and fixed in OpenSSH are dubbed CVE-2016-0777 and CVE-2016-0778. How do…

How to compile and install Tarsnap on a Ubuntu/Debian Linux

A Tarsnap service is a secure online backup system for Linux, OSX, *BSD or UNIX-like system. They encrypt and store data in Amazon S3. The services also use rsync-like algorithms, and only backup data that…

How to get common name (CN) from SSL certificate using openssl command

I configured and installed a TLS/SSL certificate in /etc/ssl/ directory on Linux server. I was wondering if can I find out the common name (CN) from the certificate using the Linux or Unix command line…

How to install Letsencrypt free SSL/TLS for Nginx certificate on Alpine Linux

I already installed and setup regular Nginx based HTTP server on Alpine Linux. How do I configure Nginx web server with letsencrypt free SSL/TLS certificate?   Nginx is a free and open source web server.…