Posted on in Networking
This is a revisiting of the Company X presentation regarding telecommunications.
Company X should utilize prevailing broadband technology in each store location to provide the lowest cost high-speed access to the Internet. In order to facilitate communication between each store and the company headquarters, a virtual private network (VPN …
Posted on in Programming
As Company X begins to move toward a new information system, it must decide on how it will implement a new software strategy. They can choose to use pre-developed, off-the-shelf software or develop their own. Although off-the-shelf software has the benefit of being readily available, few systems are ready to …
Posted on in Information Systems
This presentation on telecommunications is part of a larger presentation on information technology for Company X.
Simply put, telecommunications is the sending and receiving of messages over long distances. In the past, this might have taken the form of smoke signals or telegraphs. Today, telecommunications takes place …
Posted on in Information Systems
Organizations implement new information systems in order to improve their existing or planned operations. Properly designed information systems produce the benefits of improved productivity, increased effectiveness, and greater creativity. New information systems improve productivity by helping organization processes complete more quickly or with few resources. Effectiveness is increased when organization …
Posted on in Information Systems
In today's global marketplace, even small to medium-sized businesses cannot afford to ignore the value of information technology. As James Senn (2004) notes, interconnected groups of computers offer four benefits to business: speed, consistency, precision, and reliability. Together, these information technology benefits allow businesses to respond quickly to an ever-changing …
Posted on in Information Systems
As fully vested members of the Information Age, we manipulate data everyday without really taking notice. Personal computers (PCs) are in our homes and personal digital assistants (PDAs) are in our pockets. These pieces of hardware were designed solely for the purpose of collecting and manipulating data. Hardware …
Posted on in IT Management
As Stewart Clegg, Martin Kornberger, and Tyrone Pitsis (2008) so perfectly describe it, "like bad habits, organizations are difficult to change" (p. 374). The effort required to change the processes and behaviors of large groups of people can be an overwhelming task. This applies to the Tech Division of Company …
Posted on in Information Systems
As organizations have accepted the integration of technology into their everyday business practices, it has become necessary to focus the technological activities of organizations into a specialized group of individuals. This has led to new positions such as system analysts, who focus on formulating technological solutions for organizational problems. Many …
Posted on in System Administration
Most of OS X Caching Only Name Server series was written in the pre-Leopard days. The final step in that process was to make the new server the preferred DNS server. Unfortunately, a change was introduced in Leopard that only allows you to add the local server to the list …
Posted on in voice
I ran across an instance of Asterisk the other day that was working fine except that none of the MeetMe conference bridges were valid. The conference bridges were previously working, but the server had recently lost power and rebooted. Whenever someone tried to use a conference bridge, the following message …
Posted on in Programming
Chance asked me to post the Perl script I've been using to collect and graph protocol specific usage information in MRTG. Below, you will find a link to the zip file containing the Perl script.
You can put this script where you like, but you will need to reference it …
Posted on in voice
In my office here at the Slaptijack world headquarters, I have a cordless phone attached to a Linksys (née Sipura) SPA-2100. Thanks to the Visual Message Waiting Indicator (VMWI), I have a nice blinking LED whenever I have a voicemail waiting on my Asterisk server. Unfortunately, the Linksys SPA-2100 is …
Posted on in Software
For whatever reason, my iMac had some problems this week and I was forced to shutdown uncleanly. I didn't notice much in the way of repercussions until I tried to use Parallels with shared networking turned on. When I opened up Leopard's Network Preferences Pane, I noticed that the Parallels-NAT …
Posted on in System Administration
I manage servers and network devices that, for a variety of reasons, allow users to connect via SSH from anywhere in the world. Although the traffic generated by these connections is encrypted, leaving this open to the world does present a bit of a security risk. Would-be crackers use compromised …
Posted on in Software
The Mozilla Project released Firefox 3.0.7 yesterday. This minor release addresses several stability issues in addition to a few critical security problems. It is recommended that all users upgrade in order to get access to these security fixes. Additionally users of the Flashblock add-on will enjoy a better …
