All posts by admin

Yet another break-in

April 10, 2006Uncategorizedadmin

Yes, I know, it’s irritating!

Some policy changes:

(x) We don’t use FTP anymore
(x) We drop all packets that are not destined to port 22, 80 or 443.
(x) We now only support Secure FTP over SSH2
(x) Kerberized FTP will be soon made available

How does this effect you?

exunclan.com directly gets affected, since you probably use an FTP client to connect to it; to upload files. I recommend downloading FileZilla, an awesome FTP client that supports both SFTP over SSH2, and Kerberize FTP.

The idea is that both these services will be supported, and there shouldn’t be any major problem henceforth.

For the convenience of the blog maintainers, the Blogger settings have been updated to reflect SFTP over SSH2

Meeting

April 9, 2006Uncategorizedadmin

There will be a meeting of all Exun members

on Wednesday, 12th April 2006

in Computer Lab 4

during the break.

All members are requested to inform others if they dont already know about it.

Experimenting……

April 7, 2006Uncategorizedadmin

After the boards finished i had lots of free time and with no school it was getting boring so after days of experimenting with 3D Studio Max( i am now getting the hang of it)…. i came up with this. Plz give comments.

The Car is not my own idea its from an online tutorial . Rest(not much) is my own imagination.

Exun logo with reflection and refraction took a lot of time for figuring out the matirials.

Words

April 6, 2006Uncategorizedadmin

It has been some time since anyone put up any programming questions on lnexun, so I figured I might be the one to upset the status quo. The following is the background you need for the questions.

So there is a string. Nothing special about it. Just your common everyday collection of ASCII characters. Then there is is person A. The only string operations person A is capable of performing are adding, removing, replacing (and choosing to do nothing to) one character in the string at a time. To clarify, he may only look at one character from the string he is working on at a time and then choose to perform either of the said operations on it. He is then free to look at any other character.

Q1. Suppose we give person A strings ‘a’ and ‘b’. I want your program to calculate, given these two strings, the minimum number of operations A needs to perform on a to convert it to b. There is no reason for len(a) to be equal to len(b).
Q2. (Harder) Tell me how (any one way) he would perform the conversion from a to b.

Email answers to nisheeth@gmail.com. Any questions go in the comments.

BTW I saw these on a programming contest we did for the local highschools. You guys could probably do the rest in your sleep, so I gave you the one that noone got. Don’t let that deter you, it’s very doable.

Happy hacking.

–Nisheeth

we are sorry for inconvenience

April 4, 2006Uncategorizedadmin

Hello
And welcome to EXUN 2006-07

As you all might know that you are EXUN members. Exun stands for Experts Unlimited.
Exun is the Computer Club of DPS RK Puram.
But you guys already knew that. Also, this is not the point of my post

My point is that since we call ourselves members of a computer club, we should:
1. Be Blazing Fast with whatever we do and not sit on our jobs.
2. Be technologically sound!!
3. Google anything we dont know about.
4. If you cant find it on Google. Go to Wikipedia.
5. Have read Hitchhikers Guide to the Galaxy
6. Know the answer to the question,”What happens when you search for Jawahar Singh on Google?”^^^^^^

Now coming to the real point of all points that I want to point out.
PLEASE CHECK YOUR EMAIL AND LNEXUN ATLEAST ONCE IN 2 DAYS.

Also, since we are members of a computer club, it is necessary that we all have email ids to say the least(next on the list, portable mp3 players.). And no, the hostellers arent excused.

And so, for those of you who do not have email ids, please make them, or ask for GMAIL invites.
And for those who do have email ids, please share them with us.

And for those whose email ids are nowhere to be found on the exunclan website, please tell us what they are.*

signing off
G

PS: Always keep a towel handy
PPS: You will have to read H2G2** to understand the PS and the title

* That was actually the main point of this post
** H2G2 – Hitchhikers Guide…..

^^^^^^- Jawahar Singh is a former exun member. The result was: Jawahar Singh is dead. Although you might not find this result anymore. This question has been asked in Exun Quizzes. Quizzers please take note.

The new IPOD Hi-Fi

March 30, 2006Uncategorizedadmin

Beatles Sues Apple over Trademark

AMD plays pacman with Intel

March 30, 2006Uncategorizedadmin

How to make scratched CDs work… No, seriously

March 26, 2006Uncategorizedadmin

A simple way to remove scratches from a CD so you can get your data back off the disc again.

Step 1 : Gather Required Materials.

First gather the following materials.

– Paper towel (softer is better)
– Polishing cloth (eyeglasses cloth will do fine)
– CD scratched beyond playability (Easy to find)
– Can of Brasso Metal Polish.

Step 2 : Add Brasso and Start Polishing!

Take some of the brasso and pour it onto the CD. Please be careful with the Brasso, and only perform this in a well ventilated area. I was making this guide at at the office, and forgot about the fumes. I had to polish the CD in the stairwell as I would have fumed out my co-workers otherwise.

Use the paper towel pieces to polish the CD. Polishing is ideal in straight strokes from the center of the disk to the outside so you polish perpendicular to the tracks on the disc. Because I was short on time, I used small circular motions similar to how I’d polish a car. Take your time with this. Add Brasso when it dries or gets pushed off the CD. Continue this process for about 15 minutes.

You should feel the abrassiveness of the Brasso on the CD as you are doing this. If not, then use a different papertowel. The brasso is removing part of the plastic from the disc not adding to it. You are actually scraping away part of the CD which makes the existing scratches smaller.

After 15 minutes or so, Rince the CD off under water and check the CD. The brasso will have left small scratches on the disc as it wore down the CD. Keep going until the deep scratches are gone, and all that remains are the marks from the brasso. (they will diminish as you continue and get an even surface again).

When done, rinse the disc, and wipe it with the soft eyeglass cloth.

Step 3 : Insert CD into CD-ROM Drive and Test.

Take your polished, rinsed and dried CD and test it in your CD ROM. If it still doesn’t work go back to step #2.

As you see by my example, I was successful at pulling the data off my CD-ROM.

I have not attempted this on DVDs or video console games. Please do this at your own risk. results will vary on your patience, and polishing technique.