Installation of Linux OS is not an everyday task. Preparing a RedHat Enterprise Linux server to run Oracle Database 10g is a recent task at work. Network configuration for a system is critical for networked services especially with Oracle Database 10g server. The result default configuration file entries are based on the data provided on [...]

The previous system administrator left work hurriedly a month ago. Thus, I inherited a Red Hat Linux Enterprise server with little knowledge. There are many others who would be more apt at the task, but they refused the position. Colleagues consider it as something scary, which entails a big responsibility. They might be right at [...]

The acquisition of Sun Microsystems by Oracle Corporation has been looming for sometime already. Today, I got email that the deal has been completed. The acquisition would allow Oracle to become a player in the cloud computing business. The merger would deliver various technology innovation with the addition of servers, storage, SPARC processors, Solaris operating [...]

Computer software installation sometimes present some surprises especially on the Linux system. I have encountered such case when installing Oracle Database 10g Release 2 on a Redhat Enterprise Linux version 4. Expecting for an Oracle GUI for a Universal Installer, I was prompted by a series of text. It’s good to read closely those text [...]

In Linux ifconfig is a basic command used to check the IP address. Recently, I did a fresh install of Redhat Linux on a virtual machine. Logged in as local user, I checked the IP address using of ifconfig command. I got a command not found error. I tried to verify if ifconfig is really [...]

We have several Linux servers which communicate with each other. Date and time synchronization is important on those servers. I tried to use ntpdate to update the date and time from an NTP server, but have encountered an error. The ntpdate update error is “Operation not permitted”. Aside from that another error showed “No server [...]

In a small computer infrastructure of 20 different servers like what we have inter connectivity of the servers are important. An Apache Dedicated Web server could communicate with an Oracle Database Server. A web application could be accessing a database server and trigger mail server action. Web applications could store information of files uploaded on [...]

Robot computer applications that will run with GNU/Linux is now available. Robot hobbyists, makers, or software developers could now use the Linux-friendly USB-based sensing and control modules from Phidget. Phidget previous product versions need to be connected to a desktop computer via USB to work, but now it released a single board computer (SBC) to [...]

IT should not be all about technology. We’ve been striving always to put business needs and policy. That said we end up with a lot of specialized applications through different units in our institution. There’s a growing challenge to support in-house applications. Problems like managing data synchronization and application integration are some of the common [...]

I got an SVOA Warrior C2D 29300A computer CPU as replacement for my crashed old computer. I have installed Ubuntu Server 9.04 Linux on a breeze, but I still need to update some files from the Internet. I am behind some monitored network which requires authentication to browse the Internet. To get pass through this [...]