Life and Living

Today I find an interesting thing in my google analytics. A guy entered into my blog usign keyword ‘get paid to do captcha’. I have searched with this keyword, but I did not find my site on top 100.

Ok, many sites say that they pay to type captcha. My question is that how money flows by typing captcha. Who need this typed captcha. Actually some robots need captcha database to by pass the security code. They recruit people to gather the data for database.

What make you feel that proving yourself as a human being not a bot will bring you money. Even if it may bring you money, is it good? You are helping some hackers  or bots to create database to bypass some security protocol.

County Story is a game. I play it on facebook. During last summer vacation, one of my friend asked me to play the game. I had a lot of time in hand then, so I played. After playing for some days, I had become addicted to it. Still today, I play Country Story regularly.

Now I am thinking why this game is so attractive to us. It has very low action, poor graphics, poor sound, then why we play the game? Why it it more attractive than a FSP or other high quality game.

I found the answer. In the neighbourhood of other game, the characters are unknown. But in Country Story, all the characters in the neighbourhood are friends. In this game I can help my friend, gift my friend, take help from my friend, steal from my friend. That is what our sole want. We want to be in touch with our beloved friends. That is why it is more interesting than other hi-fi pc games.

After a long time, I have stated to write on my blog again. I will be very busy in my winter vacation with a lot of assignments and two projects. I have thought that I could enjoy the vacation. But I cannot do enjoy it because of our academic excellence. I am getting bored with my university life. I have slept only 9 hours in last 3 days that is 3 hours per day. The university will get the class suspended for winter vacation from 13th december. Till then I have to work hard.

Today, I felt very uneasy on Theory of Automata class. Asst. Professor just told me to read a theorem and describe it on the stage. I did not know the theorem and never read before. So I read it for 5-7 min and understand what it is for. But the problem is that when I went on stage to describe it, I forgot everything.

LOL.

How much medicine do you have to take when you get ill. My friend Rahad is sick, and he took a lot of medicine everyday. I took a snapshot of his medicine few days ago. He takes 4 unit from this package every day.

Setu's breakfast

Badhon is the leading volunteer organization in Bangladesh specially for blood donation.

One month ago I have taken a Hepatitis B Vaccine form Badhon, Amor / Aomor Ekushey Hall Office, 14th, September was my second dose date. I got there at about 11:00 am. The office room is locked. I phoned the general secretary of Badhon Amor / Aomor Ekushey Hall Branch, he told me that he was not there, he  can push the vaccine if I came after the Ifter. I urged that I have many works to do, I can’t stay this long time there. Then he told me than he was sending a volunteer there to give me the vaccine.  I began to wait in the Rafiq Bhabhan, but almost one hour passed, nobody came. I called a friend and took that volunteer’s cell phone number. My friend called him and he said that he is busy in a work and could not be able to reach the hall within 90 minutes. Ok I waited almost 100 minutes  and went to Rafiq Bhabhan, and called that volunteer. He was there and told me to wait saying that he will meet me soon. He came after 20 minutes of the given time. He told me that he cannot push the vaccine right now because he has no key to unlock the room.  Then he called another volunteer, who was in the Rafiq Bhabhan. He gave  a key, but the first volunteer said that it will not work.  At about 1:30 PM he said me that it was not possible to give the vaccine  right then. He told me to come after Iftar or tomorrow to take the vaccine. It was not possible for me to come next day to take vaccine. So I have to wait, for IFTER. I went to Fazlul Haque Muslim Hall to meet a friend, and stayed there till ifter. After having Ifter, I went to Amor / Aomor Ekushey Hall again, and called the volunteer, he meet me after the call, and talked to other volunteer. After sometime he told me it will take some more time. He asked me to read newspaper this time. After half an hour he told me that, I have to wait another 100 minute to take the vaccine. It was night then and almost 8:30 PM. I refused to stay any longer and departed the hall.

Now my question is that why Badhon has a single key for their office? If they unfortunately have single key to unlock the room, is should be in the office room or in the hand of provost who always anyhow reachable from hall. Why some powered volunteer whimsically take the single key and disappeared for all the day? There is no answer definitely.

Let alone the vaccine, what will happen if any body asked for emmergency blood service then. All the database of people along with their contact number who are interested to donate blood within that area are kept in that room. How will they serve then? Definitely they would say that blood is not available now.

If you need emergency blood, please contact the head office of Badhon, at TSC, University of Dhaka, Tel: +880-02-8629042 (6. 30 PM–9. 00 PM). I hope you will get better service than me.

Many people practise php on a virtual server on the desktop. Since the local hsot of the desktop is not registered to any Internet Service Provider, all the php built in function will not  work in local host.

Few days ago, I was trying to send mail from my localhost. Everytime it says undefined function. I used mail() function to send the mail. Actually there is no error in the mail code. My fault was that I was running it on my desktop, not in the server. When I moved the code to my domain, it worked successfully.

I use GrameenPhone Internet to access the web. I used their P2 package to use Internet. Every month, they send me a message before my connection expire so I can recharge the required amount of money before expiry. Few months ago, they messaged me that the P2 package will be unavailable to me, if I don’t continue. That means if I fail to recharge the money before the expire date the connection will be closed forever. I was using their service for last 2 years and each months they send me a sms to remember me about the expire date. But in this September they did not sms me about the expire date, rather they cut of my connection forever. And sms the alert message  that if I do not recharge the money they will cut off my connection right after two days after cutting of my connection. Isn’t it cheating?

Tracking an user is very easy in php. It requires a single line to get the client ip address.

The line is $ip=$_SERVER['REMOTE_ADDR'];

Easy. Isn’t it?

Just put the following code in a php file and upload to your domain.

<?php
echo $_SERVER['REMOTE_ADDR'];
?>

Then open the page using your browser. It will print your ip address. Check it.

If you do this to your localhost (not in the server), it will print the virtual server ip address that is 127.0.0.1 which is default for all localhost (not in the server but may be built up in desktop)

What is session? Definitely it is a period of time. In case of web, we can define session as period of time when an Internet user interacts with a particular web page or web application. The session is identified by GUID (Globally Unique Identifier). GUID is a special type of 128 bit identifier. That is it can identify 2 to the power 128 unique Internet user. The world does not have too many Internet user as the GUID can generate as many ids. So according to Pigeon Hole Principle, there is at least 0 id that is possessed by two unique users.

What will happen if the number of Internet user reaches or crosses the number 2 to the power 128? Well in this case according to Pigeon Hole Principle, more than one user can have the same id. But we have a lot of computer geeks and engineers. We already have 64 bit processor. Our genius computer scientist will raise the GUID to 256 bit from 128 bit. It is a very easy task to generate 256 bit id using our current processor let alone our future processor. I think it will take some centuries to reach 2 to the power 128 Internet user let alone 2 to the power 256.  The number of current Internet user is about 1,668,870,408 . I get this data from InternetWorldStat.com.

2 to the power 128 equals to  340,282,366,920,938,463,463,374,607,431,768,211,456. I don’t know how many centuries will pass to reach this number. So till then the GUID will provide us a unique 128 bit id for each unique Internet user.

Few days ago I made a silly mistake in my php coding. I have echoed something on the page where I have set the cookie.  It seems that it is not faulty code. I googled the problem and found the solution from php.net. Actually cookie must be called before anything goes to browser from server.

So If you echo anything or show anything before setting the cookie, the page will say that cannot modify header. Header already sent by…….. or something like this.

Another silly mistake many of my friend made is that they paste some code before the session_start() function. This should not be done.