Don’t Forget About SELinux

Recently we decided to move some of our web applications, as well as this blog, to a new cloud server provided by DreamHost.com and their new DreamCompute OpenStack cluster in Virginia. Starting with a minimal install of CentOS7, we built a fairly standard LAMP server. Once we got the new server stable, we moved the apps over. The web apps hosted on our new server are GeekGlossary.com and jobs.beausanders.org. For the sake of this post, you need to know both of these apps have similar backup routines and logging functions. Continue reading “Don’t Forget About SELinux”

How to Perk Up Your Sluggish Nexus 7 Tablet – Wipe the Cache Partition

My Nexus 7 tablet is about three years old. Like a good Google disciple, I’ve been diligently updating my Nexus 7 whenever a new system update came along. My little tablet worked fine running Android 4.4 (KitKat). Then around the end of 2014 Google pushed out Android 5 (Lollipop). I was really excited at first. However, after a very short time I realized things had changed drastically on my Nexus 7. I had to reboot almost everyday just to get it to do anything. My tablet was very sluggish…almost unuseable. I hate the new email client too. So the result is, I have not been using my Nexus 7, which has me shopping for a new Samsung table (that’s another story). Continue reading “How to Perk Up Your Sluggish Nexus 7 Tablet – Wipe the Cache Partition”

How to Create a Hyperlink in Word or Outlook to a File or Folder on a Shared Drive

Have you ever been working on a document or email and needed to include a hyperlink to a file or folder on a shared drive on a file server? This seems to be happening more and more. Continue reading “How to Create a Hyperlink in Word or Outlook to a File or Folder on a Shared Drive”

How To Uninstall, Disable, and Remove NetworkManager from RHEL6 and CentOS6

The default install of Red Hat Enterprise Linux 6 (RHEL6 and CentOS6) automatically includes the NetworkManager service which was optional in previous versions. The purpose for NetworkManager is to make RHEL6 more portable which is great for a notebook computer or perhaps a desktop. Portability is not a major concern for a server. Usually servers are fairly fixed and configuration of network settings is done statically using manual tools. NetworkManager also does not support many advanced networking features like IP forwarding. Continue reading “How To Uninstall, Disable, and Remove NetworkManager from RHEL6 and CentOS6”

How To Install Netbeans with JDK Bundle and Sublime-Text in CentOS6/RHEL6

Several students in our PHP/mySQL class have asked about installing Netbeans IDE and/or Sublime-Text editor in their CentOS6 virtual servers. After researching the installation instructions for these programs, I determined that there was no one place that explained what our students were looking for.  Therefore, I am going to provide an installation guide here. Continue reading “How To Install Netbeans with JDK Bundle and Sublime-Text in CentOS6/RHEL6”