Create Bootable Hirens CD on USB using Linux

Overview This howto outlines the procedures for creating a bootable version of Hirens on a USB drive using Linux. The problem arises when attempting to create the the bootable USB using the traditional (and generally reliable) isohybrid + dd approach. There is one fine which needs to be renamed, and in order to do that, Read More …

Tracking Memory and Swap Usage

In Linux, there is a relatively simple way to track memory and swap usage by process.  First look to the directory “/procs”.  Here you will see a list of subdirectories named by running process ids (PIDs).  Each subdirectory contains files and other directories that contain useful information about that process.  For the metrics we want, Read More …

Let’s Encrypt – Updated Release

Back in December 2014, I wrote a post on Let’s Encrypt – a TLS Certificate startup that plans to offer free 3rd-party certificates to anyone that owns a domain name. At that time Let’s Encrypt had set a target release date of “Summer 2015”. Let’s Encrypt recently moved their launch back with the following tentative Read More …

Quick Globus Endpoint Setup on LInux

The system is running CentOS 6.6. Here is the condensed version for the impatient. Install repo: curl -LOs http://toolkit.globus.org/ftppub/globus-connect-server/globus-connect-server-repo-latest.noarch.rpm Import repo GPG key: rpm –import http://www.globus.org/ftppub/globus-connect-server/RPM-GPG-KEY-Globus Install Globus packages: yum install globus-connect-server-repo-latest.noarch.rpmyum install globus-connect-server Assuming you already have a Globus account, sign-in, and go to “Manage Data->Manage Endpoints->Add Endpoint”. Create your endpoint and assign it Read More …

Multi-Boot Options for Windows PCs

If you have a Windows-based PC and you would like to boot an alternate operating system (most commonly, Linux), here’s a bit of advice: DON’T SETUP A DUAL BOOT PARTITION! These setups are messy, complicated, and can cause technical issues down-the-road. I have over the years, had to disentangle and repair such setups for many Read More …