systems

Virtualization, Vagrant, and Docker for Development
Virtualization, Vagrant, and Docker for Development

How would you like to take virtualization to a new level?  To create virtual machines, each perfect for whatever software you are trying to develop?  What if you messed up big time and wished you could just get your computer back to the way it was before you did anything and start over?  What if you could do that in a few seconds or minutes at most?

Vagrant can help you do that.  That is, if you want to create whole virtual machines.

But what if you wanted to create several light-weight servers that shared an operating system image?

Three and a Half Years Administering Epic
Three and a Half Years Administering Epic

Stuck in Fresno away from the lucrative and challenging IT positions I have been accustomed to, I wanted to return to the Bay Area or another more metropolitan area.  But my parents were aging and needed my help.  My brother had passed away and my sister was in the Los Angeles area, and my daughter was studying Cognitive Science at UCSC.  So Eileen and I felt bound to stay in Fresno.

Then a recruiter called.  Recruiters typically call.  However, this recruiter asked if it would be a problem for me to live and work in Fresno.  It was not only Ok, but it was ideal.

Email Using Exim – Bye, Bye Spammers

I just  spent a week in email purgatory.

Sendmail was a great email server.  It served millions of people for decades.  But, email technology has matured.  Or perhaps it has merely been simplified.  Or perhaps complexity for the sake of generality has been exchanged for a simple foundation with complex appendages to address security, performance, and scalability.

Services Dying? Keep Them Alive With a Perl Script
Services Dying?  Keep Them Alive With a Perl Script

Have you ever felt frustrated with your Unix services that keep shutting down in production unexpectedly without notifying you?  Would you like to have a script that might help restart those processes and notify you of the problem?

This little helpful Perl script might help.  Or it might help you see what happens when a long time Unix system admin learns enough about perl programming to be dangerous.  Even so, this script works well for me.