Category Archives: Computers

This is more of a permissions and security chapter. First off are file permissions. Executable, sticky bits, etc. Interesting that you cannot set umask to create executable files by default. The parts I’ll need to remember are the various special … Continue reading →

Second day of poking about at certification. I’m studying the Red Hat 6 exam but have a dual environment set up. Three CentOS 6.6 virtual servers and three CentOS 7.0 servers. It lets me look at what the book is … Continue reading →

One of the things I’m tasked with at work is to be the point man for patch management on the Red Hat/CentOS infrastructure. A daunting task in part because patching, unless under critical circumstances, is almost impossible. It takes months … Continue reading →

Going through the study book which is 17 chapters of which the first chapter is setting up your system and installing Red Hat. Disk layout, configuration, setting up an http and ftp server with installation media. I got the http … Continue reading →

As I prepare for the RHCSA/RHCE certifications, I have to do some conversion between the RH6 book I’m using examining the new ways of doing things in RH7 (when I say “RH6” or “RH7” I’m including CentOS and ScientificOS in … Continue reading →

I’ve been mucking around with computers since I picked up a Timex/Sinclair in a K-Mart somewhere in Virginia around 1980. I’d been working as a Typesetter on a computerized system (CompuGraphic EditWriter) and a Field Engineer (FE) gave me an … Continue reading →

Starting in on checking out parts and bits in order to build a new system. My current system actually works pretty well but it’s also getting old enough (2008) that the parts I do have will not be easy to … Continue reading →