Microsoft Windows is usually a presence in most computing environments, and UNIX administrators likely will be forced to use resources in Windows networks from time to time. Although many are familiar with the Samba server software, the matching smbclient utility often escapes notice. more>> […]
Some tools that I use on the command line are so basic and so ingrained in my day-to-day actions that it's weird when they're not available. This often happens to me on OS X. I love that OS X has UNIX underpinnings. I love that the terminal window is a real terminal window and works like a terminal window should work. more>> […]
The success of High Performance Computing (HPC) relies in no small part on the OpenPOWER Foundation, which was founded in 2013. The reason this open ecosystem is so important is that it provided members open access to the IBM POWER8 technology, which resulted in huge advances in innovation. more>> […]
During the past few years, FinTech has emerged as a startup realm that is growing astronomically. In 2015, the EU alone experienced a growth of investment in FinTech of more than 215%, according to a report by Accenture. more>>
For this article, I thought I'd introduce another chemistry application—specifically, BKChem, a free chemical drawing program. As opposed to many other chemistry applications, BKChem provides both a nice GUI for constructing molecules and a set of chemical analysis tools to look at the properties of the newly constructed molecule. more>> […]
Article Sponsor: IBM By now, most companies who do any business in the EU are aware of the General Data Protection Regulation (GDPR), which goes into effect in 2018 and applies to any entity doing business within any of the 28 EU member states. more>> […]
Usually bird-related apps involve pigs and anger, but if you're a bird watcher like myself, there's another bird app you must download. Cornell Labs has released a free app called Merlin Bird ID that helps identify birds you see in the wild. more>>
I recently installed or upgraded to FreeNAS Corral (version 10). However, I noticed that there is no support for FreeBSD jails as of 26/March/2017. How do I install and configure traditional FreeBSD jails on FreeNAS Corral (version 10)?
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 option?
I read your Nginx and Let’s Encrypt free SSL certificate tutorial. However, I use Lighttpd web server on AWS cloud. How do I secure my Lighttpd web server with Let’s Encrypt free SSL certificate on my Ubuntu Linux 16.04 LTS or Debian Linux 8.x server?
Over time I have added way too many PPAs using the add-apt-repository command on Ubuntu Linux 16.04 LTS server for testing purpose. How can I delete or remove those PPAs? Is there a command to list all PPAs? Yes, you can delete or remove a PPA. You must have root privileges to achieve this task. […]
I setup GlusterFS cluster on Ubuntu Linux. How do I enable network encryption using TLS/SSL for my Glusterfs storage cluster on Linux for security reasons? How do I setup I/O encryption and management encryption with Glusterfs?
I want to share my web server DocumentRoot /var/www/html/ across 2 Apache web server. Both of my web servers are behind load balanced reverse proxy powered by Nginx. How do I setup and install GlusterFS ("distributed storage") which is a scalable network filesystem on Ubuntu Linux 16.04 LTS server?
I recently decommissioned Debian Linux based nas server and moved disk from my nas server to Linux-powered desktop. However, when I run fdisk command, I am getting the following error: /dev/sdb: device contains a valid 'LVM2_member' signature; it is strongly recommended to wipe the device with wipefs(8) if this is unexpected, in order to avoid […]