Wednesday, January 28, 2009

Motorcyclists and Spring Sand

In addition to this blog, I am also an administrator of a great motorcycle forum, motorcyclistsunited.com (I say great not because I am partial, but because I have had experience at other forums based on motorcycles and this one has far better people, experts in the interest, and much better content). Anyhow, we have an awesome contributor, Captain Crash, who always posts some very fine literature based on motorcycles, life, and the philosophy of the integration of both. He also makes some very good motorcycle safety and informational videos. Anyhow, I wanted to share one that he posted today. The topic is the spring sand effects of living in a snow and frozen weather area. Good stuff!



Monday, January 26, 2009

The Queuing Theory [LU]



This was a response to a classmates post regarding the queuing theory...

I am a very analytical person and any mathematical/analytical theory is interesting to me. The queuing theory is no exception. On top of that, I have worked in a couple of call center environments where this is of vital importance. You make a great point about understanding more than just the foundation of the theory. For instance, to make it an effective learning tool – one needs to know more than if customers have to wait for a certain amount of time they will hang up, which leads to reduction in productivity and sales, which leads to loss of business, which leads to ex-employees!

I was never a manager at either of these two jobs, so I am not sure how much the management really understood or utilized the theory. However, being an employee in those situations I know that 99% of the employees do not fully understand the why’s and how’s surrounding it. What I mean is that as an employee it was always drilled into our heads that we needed to provide great customer service but in a shorter amount of time. Most of the employees resented this part of their jobs. “How was this possible,” we thought. How are we supposed to provide excellent customer service, make a connection with the customer, and then have them off the phone within 1 minute and 15 seconds? While I was always fast on the phone this seemed an unattainable goal in most circumstances.

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Monday, January 26, 2009

TELNET, SSH, FTP & SFTP [LU]



TELNET v. SSH

In an anecdotal way, the differences between Telnet and SSH (as well as SFTP and FTP) can be compared to the "changing of the times". I remember a time not too long ago when many people left their doors unlocked and the car keys in the ignition! Security was not really much of an issue because most people minded their own and did not infringe upon others' property and information. Certainly the times have changed and now we have complex security systems to protect our cars, homes, and even our computers now. There are lots of people out there who would love to get their hands on other people's information to exploit it for their personal gain. This same type of rationale can be applied to the differences between telnet and SSH.

According to RFC854 (Telnet Protocol Specification) TELNET protocol was created to provide general, bi-direction communications between networked devices. These connections were eight-bit byte oriented. "its primary goal is to allow a standard method of interfacing terminal devices and terminal oriented processes to each other (RFC854).

That being said, one of the biggest downfalls of TELNET is that it is not really transparent at all. It has long been considered a security risk because user names, passwords, and all subsequent commands are transmitted as easily-exploitable plain text (Brenner, 2007). However, TELNET is really a useful tool. So what to do? We need to be able to have the same essential functionality, but with some level of security.

Enter SSH...

According to RFC4251, Secure Shell(SSH) is a protocol for secure remote login and other secure network services over an insecure network. There are three major components:

  1. The Transport Layer Protocol [SSH-TRANS] (provides server authentication, confidentiality, and integrity)
  2. The User Authentication Protocol [SSH-USERAUTH] (authenticates the client-side user to the server and runs over the transport layer protocol.
  3. The Connection Protocol [SSH-CONNECT] (multiplexes the encrypted tunnel into several logical channels and runs over the user authentication protocol). (RFC4251).

So, as one can see, the service that SSH provides is essentially the same as one would use with TELNET; however, SSH offers a mode of communication that is much more secure. Meaning the bad guys cannot get your information as easily.

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Monday, January 26, 2009

DNS Caching & IPv6 - [LU]



It is safe to assume that most internet users have no idea what DNS caching is or how it helps the flow of information on the WWW. That being said, I suppose for the average user, knowledge of DNS caching is not important; however, to anyone involved in the IT field it is an important concept to know.


DNS Caching

While it is probably hard to determine, it is safe to assume that there are probably millions, if not billions of DNS requests going on at any one point in time. If every time a DNS lookup is requested the request has to work itself all the way to the top of the DNS hierarchy, there would obviously be a large bottleneck that occurs within nanoseconds. This would cause the entire internet to effectively shutdown in short order. It would also make the responses incredibly slow.

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Sunday, January 25, 2009

Span of Control (Lean Management) - [LU]


Definition

In “Essentials of Management: Core Principles, Concepts, & Strategies”, the author defines span of control as “the number of subordinates who report directly to a management.” Span of control also refers to the leanness of the organization, which depends on how many different layers of management a company in proportion to the total number of employees. That being said, an organization that has a smaller ratio of managers to subordinates (with many layers) is said to be fat; conversely, a company that has managers with large number of subordinates (in less layers) is considered lean.


Satterlee, A. (2006). Essentials of Management. Roanoke, VA: Synergistics Publishing.


Summary

Paul Glader is an experienced journalist who currently works for the Wall Street Journal. His specialties include General Electric Company, industrial companies, and management issues. In his article “It’s not easy being lean, “ Glader discusses how a small steel manufacturer, Nucor Corporation, ended up becoming the largest steel production plant based on shipments in the country simply by keeping their organization lean. The author also discusses how maintaining a lean organization is not always easy to do; in fact, as a company starts to grow it becomes near impossible. For the longest time, Nucor prided itself on its three management layers that separated the CEO from the hourly workers. However, they were soon forced to add an addition (fourth) layer to the mix with the placement of five new executive vice presidents. At Nucor, there was a bottleneck begging to develop for the CEO’s time. He constantly had people wanting to talk to him about mergers and acquisitions, development of new technology, and business machine sales people. This is just a small sample of the many vying for his time. When the attention demands from the plant managers were also added in, one can see that help was needed. This was an instance where too lean was causing missed opportunities, increased competition, and inefficiency simply based on limitations of one human being.


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Sunday, January 25, 2009

Liberty University Distance Learning Program - A Brief Student Review


As it says in my profile, I am a FT student. I had attended college right after high school like most people do; however, I soon found that the program I was in (Emergency Health Sciences - Paramedic) was not for me. This, in addition to some extenuating circumstances at home, I stopped attending. A lot of things happened in my life over the next 7 years and I never returned to any other school to finish any degree. However, after I got married and settled down, I decided that I needed to go back then or never have the opportunity to do it again. I was 26 years old. I fell into the trap known as University of Phoenix, which was a horrible school to say the least. While it is a topic for another post altogether, I will say that this school (at least when I was there) was nothing but an EXTREMELY expensive diploma mill who had unqualified instructors. While I do not know for a fact, I can say that somewhere I imagine the instructors are informed to be very lenient with grading. Reason? - If students get bad grades or fail, they will not return, which = fewer profits. Let's just say I will post on this topic a bit more fully some other time.


About a year into my tenure at University of Phoenix, God told me that I was not in the right place. I was not being challenged at all and really was only learning APA formatting and spending thousands to do so. Upon my searching, the first Google search pulled up Liberty University. Obviously, to me, this was a sign! I did not even know that Liberty had a distance learning program. I was in search of a program that was not 100% online. Meaning, I was looking for a distance learning program that was an extension of an already well established institution. Turns out, not only was this the case, but Liberty was actually a pioneer of the Distance Learning format, starting way back with their VHS Bible classes.

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Wednesday, January 07, 2009

Sesame Street Live!!


I have been meaning to post this since December 6th, but have not had the time. I do now, so I guess I will. As mentioned in my profile, I am 30, married to a great woman, and have 3 awesome kids. Two boys, 10 and 11 and one girl, Lydia, who is almost 2 (21 months). As far as TV and her favorites, she loves Mickey Mouse Clubhouse, Handy Manny, The Doodlebops and most of the rest of the daily Disney lineup. For some reason, she is not too into any Nick shows at the moment - perhaps they are a little bit above her level at the moment.



In March '08, we took her (and the boys) to see Playhouse Disney live. This was right around her first birthday. Let me take an aside here and tell you a little something about me and shows. We do not go to many things like that due to time and money constraints; however, whenever we do go, I always do whatever I can and pay the extra money to get the best seats possible. I figure if I am going to spend that much money, I might as well spend 20% more to get to actually see and enjoy the show. Anyhow, we had pretty good seats for playhouse Disney. It was in an auditorium setting and we were in about the 7th row back, right on the end - closest to the middle aisle. Pretty darn good seats. This event was very expensive (cmon, I mean it is Disney, of course it was); however, it was quite a disappointment. Although, when Mickey Mouse came out on the stage, the look of utter amazement and astonishment on Lydia's face was worth every penny (even though she will not remember it - it was all about the moment). I suppose it was OK, but that was really all I could say. The story line was pretty lame and the songs and dances were pretty unenergetic as well.

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Wednesday, January 07, 2009

Of Resolutions and Complete Life Changes

Well, like usual I am late on posting this...about 6 days late in writing about resolutions. Oh, I bet you are all excited to read about another person talking about losing weight, quitting smoking, spending less on asparagus, or whatever.

I make a bad joke, but I am a bit serious as well. I mean, maybe it is an American thing, but how many people stick with resolutions and if they do, for how long? I have never been one to really even set a resolution. Although, I do generally think about certain things that I would like to change about myself and my life. To be honest, I generally do that every day. You see, I think that I am committing one of the seven deadly sins on a daily basis. Though, looking around me, I see it happening everywhere so I am not alone. Which one you may ask? Sloth...or better yet known as laziness. Actually, I would like to think that I am not so much lazy as I am just unmotivated at times. I am not sure if there is a difference though. I think there is.

I see laziness as never actually DOING anything, whereas unmotivated is just not WANTING to do anything. The way I see it, unmotivated people actually do things (which I do), just not all the time. There are times when I get focused on something and can just work and work until I am done. However, there are just some days where I feel out of energy and really do not want to do much. Although, when I am just sitting watching TV or something my conscious is loud and active. Though I am not motivated to actually do so, I am mentally kicking myself in the butt for sitting around when there is just so much more to be done.

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Wednesday, January 07, 2009

The Other Player Has Left

Rock Band. The mega-hit multi-platform game that allows us lazy, instant gratification, no real talent folks to play in fake bands, get fake fans, and brag about how we have "mad skillz" because we can get 5 stars on songs that are not even worth playing on a real guitar (uh hem, Maps). Okay, so not everyone who plays this game is in this category. Some people use it for the purpose it was intended - a game for entertainment purposes only. And there are plenty of people who have those highly sought "mad skillz" (not me though - I am average at best).

Anyhow, this brings me to the topic of quitters. As if there are actually people in the world who are not familiar with the game play, let me elaborate. Since I have an Xbox 360, I will speak only in those terms. So, in addition to paying quite a bit of money to own the Xbox, the game, the internet connection and any other ancillary costs, you can shell even more money out to Microsoft to be able to play against other players from around the world via Xbox Live.

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Wednesday, January 07, 2009

I Think I Am Getting Stupider


Well, here it is folks - my very first ever blog. While I have so much to say on many topics, I can never seem to a.) find the time or b.) to synthesize them into rational and understandable thoughts.

I was not like this, that I can remember, when I was younger. Heck, I say younger like I am old and I am hoping 30 is far from old. However, up until my mid to late 20s, I had the, what you call, the "gift of gab" (I hate that 'ism). Here lately though there are more times than not that I cannot seem to get the thoughts that I have either out of my mouth on in writing. Then again, there are other times that I can deliver a prose deserving of a Nobel Prize. Actually, I am not that narcissistic - rather, I am just sarcastic.

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