Friday, March 27, 2015

Pareto Principle in Action

My last experiment started as a practical examination of the Pareto principal, otherwise known as the 80/20 rule.  I had been making straight B’s on my Routing and Switching tests, and I wanted to consistently improve them to A’s.  In order to do that, I needed to know how much time I was spending getting that B. 

So I changed my study habits slightly, and decided to keep track of time spent studying.  I’d also read something about two competing South Pole expeditions.  One ran as much as they could every day.  Some days they didn’t go anywhere because the weather was bad.  The other went 15 miles a day, regardless.  They went 15 miles, and stopped for the day.  So I decided to try that principal with studying.  And the results were pretty remarkable.

I went from an average low B to a high A on the next test.  Hooray for me.   Anyway, this was the process. 
Read any previous notes I had made.
Grab a highlighter, and read 15 pages, highlighting what I thought was important.
Copy those highlighted notes into my printed notes.
Quit for the day.   Return tomorrow.

In doing this process, I found it only took about an hour a day, so I really had more time to work on other things.  Normally, I would have spent 3-4 hours straight on Saturday or Sunday reading and highlighting.  Granted, chapter 7 took me 387 minutes to complete, but that only averaged 64 minutes per day.  I have yet to take the test on that chapter, so I’m not yet sure how effective this process has been for that chapter.  But I do know the previous chapter resulted in huge positive results.

I think I missed a lot of the main part of this that makes it so effective.  The main effective part is that you study a little bit every single day.  It’s not a brain destroying group done once or twice per week.  It’s simply an hour per day, every single day.  In that way, your brain doesn’t have time to stop thinking about what you have studied.  On top of that, by the end you’ve read and reread your notes numerous times.  Then, the information is more likely to stick. 


We’ll see what happens with chapter 8.  Though I have to admit, single area OSPF just doesn’t interest me that much.

Monday, March 23, 2015

Outliers

I read Malcolm Gladwell's book Outliers.  I think I've come to a distinct set of realizations afterwards.  It's a collection of things rumbling through a head that doesn't quite understand what is trying to be said.

I've watched through the YouTube version of Patterns of Conflict once, and I'm working on watching it again.  I've often wondered if I could write distinct lines in my life between things I read or done with the realization that those things are the future points of tomorrow.  They are the points when life departed and the old fell away.

I know Patterns of Conflict will have an impact on my life.  It already has.  Several statements have already begun sticking in my mind, leading to wanderings down paths that just aren't normally taken.  The ability to deconstruct and reexamine thoughts gives way to new perspectives.  I've often thought going to college is like staring in through the wrong side of a peep hole into a three story house, without the realization that there is even a house to be looked at.

I've also began wondering what would happen if one intentionally went to spend the 10,000 hours it takes to reach mastery of a subject.  In doing so, I contemplated buying the www.10000hours.com domain name, but it was taken.  I don't even know what I'm going to do with it, but I think I've got an idea.  I think it's what Driven was initially created to do.  I just never finished that project, and it went by the wayside.

I guess the goal is then quite simple.  Pick a project, and start a timer.  Figure out how much of your free time you have spent on the path towards mastery.  It would be great if you could suddenly know where you are on that path.  But without extensive time management analysis, I don't think that's possible.

But it might make a good story here and there.

Monday, February 2, 2015

I've got a thought running through my head.  What if everything we do can be described as the difference between attrition warfare and maneuver warfare?

Attrition warfare is the tactical decision of the 19th century, and was codified by Carl von Clausewitz in On War.  von Clausewitz argued heavily for the kind of attacks seen during World War I, in which soldiers lined up and charged at each other.  These were heavily destructive battles that were exceptionally costly and ineffective.  This strategy persisted far into the Cold War and beyond.

It has mostly persisted due to simplicity.  It's a lot easier to teach Attrition War versus Maneuver War.  Now, jump back to the point at which von Clausewitz was writing On War.  He was a Prussian, writing about the battles of Napoleon.  Shortly after, the Prussian level of thinking also created the basis of the modern education system.   Prussia needed to move into the 20th century as fast as possible to prevent something like Napoleon from happening again.

Now, what the Prussians created was an attrition war versus the under-education of the the people.  In many aspects, that is still what the entire education system is based on.  But Attrition War has numerous problems.  It is costly in terms of human lives, and generally ineffective versus a decent defense.

Against the proper defense, attrition warfare costs thousands of lives.

Where does that all tie back towards Maneuver Warfare?  I think Boyd can answer that question.

Thursday, January 22, 2015

Corrective Action

I’ve been reading through Proverbs in my quest to finish the Bible this year.  So I’m using YouVersion and plan that has me read the entire thing in a year.  Technically, I started 2 years ago, and never finished.  But I picked up where I left off, and now I’ve been going steady since January 1. 

Anyways, I was thinking through the various parts about the correction of children.  I know correction has been simplified to “spare the rod, spoil the child”.  But that’s a hideous abbreviation of a collection of different proverbs.  Most of them say “don’t hesitate to discipline your child”.  But the comment is not often made on how to discipline. 

In other words, discipline should exist.  But I’m not going to tell you how to discipline.

If the Bible is the word of God, and God is smart, then what the Bible says should be smart.  I’ve got three kids.  The older kids (3 and 5) have completely different personalities.  Disciplining each child requires different actions and corrections.  Sometimes the reward is a positive reward, sometimes a negative reward.  But in the end, there is some sort of correction.

Throughout the parts of the Bible I’ve read, the correcting action changes.  God was not a one trick pony when it came to correcting the Jews, and as a parent we shouldn’t be either.  The old adage of “spare the rod, spoil the child” is the adage of a one trick pony. 

There is a second question that needs contemplated when talking about corrective actions.  Think back to the corrective actions your parents used.  And then answer the question: did it work?  I’m pretty sure most children will eventually parent the way their parents did.  They will use the same corrective actions.  I saw a lot of parents use corporal punishment.  I also saw a lot of kids who weren’t phased by corporal punishment.  Fifteen minutes after being paddled, they were back to their old ways.   In effect, the corrective action was not effective in solving the issue. 


The entire purpose of a corrective action is to get the person to correct their action.  It’s not for the parent to feel better.  It’s to correct the action that was wrong.  If the corrective action didn’t work, then new measures must be developed.

Wednesday, January 21, 2015

journaling

I was reading something from the Art of Manliness about Benjamin Franklin keeping a notebook in which he wrote down his successes and failures in his desired character traits.  I found an old military notebook that I used to have, and I think I want to do the same thing.  The notebook is one of those old green hard back notebooks filled with blank pages.  It’s kind of like your own personal hard back book. 

Mine is a bit old, but I still like it.  I always thought they were the greatest thing in the world when I saw NCOs carrying them around.  I don’t know why.  It was simply the mystique of an NCO and his book.  There was a degree of awe in seeing that book.  The books themselves were simple little things. 

Anyways, there is always the question of what should be put in the journal.  It’s not often you get a book that could last a few years.  Most of the time, you find some piece of junk spiral notebook that will last about 20 minutes.   And spiral notebooks never have the proper consistency or a solid cover.  Unless the attempt at solid is shoddy plastic.  Did I mention how much I hate spiral notebooks?

Anyways, I’m still contemplating what to write in the notebook.   I really like the idea of keeping track of progress.  Often, you find yourself committing the same mistake over and over again.  For some reason, we are blind-sided by our own faults.  We often see past them.  They just simply disappear.  


Tuesday, January 20, 2015

Network Baselines

Like I said, I’ve been working on network baseline analysis.  Beginning problem is that I don’t have a baseline to begin with, nor do I have any way to examine the current baseline of the network.  So, I’m at a loss of where to start. 

I read one book where a basic baseline can be created by pinging all available hosts.  It’s not the greatest baseline, but it is the beginning, and it’s better than nothing.  What I’ve got is nothing.  So what I did is wrote a batch file using a FOR loop to ping all devices and print the output to a file.  After that, I ran an arp –a and appended that to the end of the file. 

So it’s not the greatest baseline.  But it does give me an idea of what standard network performance should be, at least as far as PING goes.  I guess the next part is trying to dump the information into a webpage or a database so the information can be examined later and compared to what it has been at various points. 

I guess I should probably add the ITILv3 documentation to my reading list.  The only problem is I’m not definite the ITIL information actually provides information on how to baseline a network.  I understand the basics and the conceptual theory.  It’s a matter of going out and doing the work.  And sorry, SNMP is not the way to baseline.  Everyone has it turned off due to the insecurities in the system. 

Just a quick look at Cisco, and the only encrypted version they have only supports DES.  So the options are send the data as plaintext, or send it as an algorithm that has already been replaced due to inherent weakness.   15 years ago, DES was cracked in 22 hours.  15 years ago, I was happy with 400 MHz processor running 128 Mb of RAM. 

In comparison, I’m writing this on a laptop with an Intel Core i5 running at 2.5 GHz with 4 GB of RAM.  Shot in the dark, but I think a couple of these suckers could crack DES in a day.  And if someone breaches your network and doesn’t get caught, then what is a day?  What is 10 days? 


Monday, January 19, 2015

The end of one thing, the beginning of another.

I finished the Security+ book, and I think it left me with more questions than answers.  At the moment, I’m questioning how to do a lot of things.  Network baseline analysis is the primary one of those.  At the moment, I’m doing some preliminary reading.  Sure, there are a lot of books out there that say “this should be done”.  None of them discuss how to do network baseline analysis.  I think the best answer I’ve seen so far “there isn’t a standard”.  Which sounds pretty normal with network security.  And that’s why network security is, as a general rule, very splotchy.

With Security+ being finished, it’s off to learning physics VIA a collection of books written by Benjamin Crowell.  Part of me wants to write a long, drawn out blog post describing in detail how I can believe in both science and God at the same time.  But I’m not.  The answer is pretty simple: most of life is not an either/or selection.  Despite simplistic arguments against, it is entirely possible to believe in both at the same time.  The two are not mutually exclusive.  Sorry folks, I can believe in both at the same time.

I’ve touched on the false idea of mutual exclusivity before.   I can’t remember the post, but it’s the argument of people who want to lead you down paths that are only valid if the two items discussed in the beginning really are mutually exclusive.  For the most part, there are very few mutually exclusive items in the world.  I guess in the end, you have to question the assumptions people push at you, and assume everyone has an agenda.  Despite the best arguments, the truth is not the real agenda.

I think Andy Andrews put it best:  People often think logically to the wrong conclusions. 


Really, there was an entire book about that subject.  It was pretty interesting.