Posts Tagged ‘graph’

The brief story of information according to James Gleich – and how we possibly come to be at where we are

Saturday, June 23rd, 2012

We're living at a times, where information has become more valuable than money and gold. Though we're living in a such a wild changing times, still it is not easy to answer in onefold clear way what is information.
The more the world and humanity developed the more meanings information word accepted.
While checking some interesting videos on the net, I've come across a video representing in a very brief form the history of information.

The Story of Information and how we come to be at where we are now

We're living at a times, where information has become more valuable than money and gold. Lest that living in a such a wild changing times, still it is not easy to answer in onefold clear way what is information.
As you can see from the video, the more the world and humanity developed the more meanings information word took up.

At the end end of the short presentational video there are few questions asked:
 

  • Who coined the term MEME
  • How many zeros are in yottabyte?
  • What is a one thing that can escape a black hole?

I did a quick research on the newly heard words and came to know meme concept. A meme is an "an idea, behavior or style that spreads from person to person within a culture.". The theory lists some interesting information like replication of personality (propagation) from one person to another etc. etc. However the general content of meme's theory puts Christian faith, religions and all kind of people beliefs in the graph of being just a continuous meme's patterns which are transferred from a person to person (generation to generation). Therefore according to memetics (as the meme's science is called), Christian faith and even my Orthodox Christian faith is just an informtion transmitted similarly to genetics information and the laws against:; sexual morality, bestiality, adultery, castration etc. are just a taboo and makes not sense and is just they claim is a information transferred from family generation to next generation until today.

Obviously the whole "theory" of memetics as a science is not true and is just a world view of Mr. Richard Dawkins in a book called The Selfish Gene (1976). It is well to be said Dawkins a follower of the fairy tales of Charle's Darwin's Darwinism.
Modern science however is seriously questioning Darwin's materialist world view. There are plenty of scientific researches which has prooved the existence of spiritual realm and hence some of the claims memetics are standing on a shaky grounds.

Concerning the second question in the video how many zeros are in an yottabyte the answer according to FreeFactFinder.com is:

2^80 = 1,208,925,819,614,629,174,706,176 bytes = 1024 zettabytes.

So having in mind the yottabyte equals 1,208,925,819,614,629,174,706,176 bytes if in bytes it would have 2 zeros 🙂

But if by zero is meant the number of values which could become zeroes then the answer would be 24 zeroes. This of course is in bytes in zettabytes the zeroes are only 0 or 3 i.e. (1024 zettabytes) 🙂

Moving back to the 3rd video question What is a one thing that can escape a black hole?. The answer is "WHO KNOWS ??".
The BlackHoles are a matter of science based on a huge theory base, there are plenty of discussions by some scientists still doubting if black holes really exist ,,, even if we assume blackholes exist noone can tell if the blackhole would suck up all matter (including light) or some specific kind of still un-researched matter or energy can get out… In short the question imposed is completely ridiculously funny 😉

Installing qmailmrtg (qmail graph statistics on qmail activity) on Debian Lenny

Monday, April 19th, 2010

1. First it’s necessery to have the mrtg debian package installed.
If it’s not installed then we have to install it:

debian-server:~# apt-get install mrtg

2. Second download the qmailmrtg source binary
To download the latest current source release of qmailmrtg execute:

debian-server:~# wget http://www.inter7.com/qmailmrtg7/qmailmrtg7-4.2.tar.gz

It’s a pity qmailmrtg is not available for download via debian repositories.

3. Third download the qmail.mrtg.cfg configuration file

debian-server~# wget http://www.pc-freak.net/files/qmail.mrtg.cfg

Now you have to put the file somewhere, usually it’s best to put it in the /etc/ directory.
Make sure the file is existing in /etc/qmail.mrtg.cfg
4. Untar compile and install qmailmrtg binary


debian-server:~# tar -xzvvf qmailmrtg7-4.2.tar.gz
...
debian-server:~# make && make install

strip qmailmrtg7
cp qmailmrtg7 /usr/local/bin
rm -rf *.o qmailmrtg7 checkq core
cc checkq.c -o checkq
./checkq
cc -s -O qmailmrtg7.c -o qmailmrtg7
qmailmrtg7.c: In function ‘main’:
qmailmrtg7.c:69: warning: incompatible implicit declaration of
built-in function ‘exit’
qmailmrtg7.c:93: warning: incompatible implicit declaration of
built-in function ‘exit’
qmailmrtg7.c:131: warning: incompatible implicit declaration of
built-in function ‘exit’
qmailmrtg7.c:137: warning: incompatible implicit declaration of
built-in function ‘exit’

5. Set proper file permissions according to the user you indent to execute qmailmrtg as
I personally execute it as root user, if you intend to do so as well set a permissions to
/etc/qmail.mrtg.cfg of 700.
In order to do that issue the command:

debian-server:~# chmod 700 /etc/qmail.mrtg.cfg

6. You will now need to modify the qmail.mrtg.cfg according to your needs
There you have to set a proper location where the qmailmrtg shall generate it’s html data files.
I use the /var/www/qmailmrtg qmailmrtg log file location. If you will do so as wellyou have to create the directory.

7. Create qmailmrtg html log files directory

debian-server:~# mkdir /var/log/qmailmrtg

8. Now all left is to set a proper cron line to periodically invoke qmailmrtg in order to generate qmail activity statistics.

Before we add the desired root’s crontab instructions we have to open the crontab for edit, using the command.

debian-server:~# crontab -u root -e

I personally use and recommend the following line as a line to be added to root’s crontab.

0-55/5 * * * * env LANG=C /usr/bin/mrtg /etc/qmail.mrtg.cfg > /dev/null
9. Copy index.html from qmailmrtg source directory to /var/log/qmailmrtg


debian-server:/usr/local/src/qmailmrtg7-4.2# cp -rpf index.html /var/log/qmailmrtg

10. Last step is to make sure Apache’s configuration contains lines that will enable you to access the qmail activity statistics.

The quickest way to do that in Debian running Apache 2.2 is to edit /etc/apache2/apache2.conf and add a directory Alias as follows

Alias /qmailmrtg/ "/var/www/qmailmrtg/"

Now after Apache restart /etc/init.d/apache2 restart
You should be now able to access the qmail mrtg qmail log statistics through your Apache’s default configured host.
For instance, assuming your default configured Apache host is domain.com. You’ll be able to reach the qmailmrtg statistics through an url like:

http://domain.com/qmailmrtg/

After I verified and ensured myself qmail mrtg is working correctly after all the above explained steps partook I wasn’t happy with some headlines in the index.html and the html tile of qmailmrtg,
so as a last step I manually edited the /var/www/qmailmrtg/index.html to attune it to my likings.

Here is a screenshot of the qmailmrtg web statistics in action.

qmail mrtg on debian lenny