It’s been almost a year since I last touched the IPs and Ports for my dedicated server. My first config was just use a single IP for everything, however I realized how bad that is. First off, then hackers can just sniffed your ports. Second, I have multiple IPs given to my by Josh from Centauri Communications. And last but not the least, I don’t like seeing the Apache test page when you type let’s say…mail.example.com. I don’t want the test page to show up, I want it to time out. And since I have yet to see how to properly do it, I’m going to stick with using the rest of my IP addresses.
Archive for March, 2009
Organizing IPs And Ports For My Dedicated Server
Saturday, March 28th, 2009Burning A CD/DVD To ISO Using InfraRecorder
Saturday, March 28th, 2009Pretty sure everyone has at least accumulated a couple of installation CD/DVDs in their life. And since hard drives are getting bigger and bigger, the need to transfer these installation CD/DVDs to a much smaller medium seems to be the best way possible if you want to keep them safe. I’m going to teach you how to burn them to an ISO file for free using InfraRecorder – a free CD/DVD burning solution for Microsoft Windows.
Make ProFTPD Listen On One IP
Saturday, March 28th, 2009My main dedicated server has multiple IPs and I wanted to assign different DNS entries to each service e.g. ftp.example.com. However when I first installed ProFTPD it was listening on my eth0 which also has the ssh, http, mail, et. al. services. So if I give out ftp.example.com then they can just guess the port of those other services. Which is why I’m giving each of them different IP addresses and different DNS entries so that ftp.example.com isn’t on the same IP as mail.example.com, making it a bit harder for someone to snoop around.
JavaScript Code Snippet #4
Friday, March 27th, 2009Computers are playing an increasing role in education. Write a program that will help an elementary-school student learn multiplication. Use Math.random to produce two positive one-digit integers. It should then display a question such as How much is 6 times 7? The student then types the answer into a text field. Your program checks the student’s answer. If it is correct, display the string Very Good! and generate a new question. If the answer is wrong, display the string No. Please try again. and let the student try the same question again repeatedly until the student finally gets it right. A separate function should be used to generate each new question. This function should be called once when the script begins execution and each time the user answers the question correctly.
JavaScript Code Snippet #3
Thursday, March 26th, 2009One interesting application of computers is the drawing of graphs and bar charts. Write a script that reads five numbers between 1 and 30 out put XHTML text that displays a line containing the same number of adjacent asterisks. For example, if your program reads the number 7, it should output XHTML text that displays *******.
JavaScript Code Snippet #2
Thursday, March 26th, 2009Write a JavaScript program that uses looping to print the following table of values. Output the results in an XHTML table. Use CSS to center the data in each column.
JavaScript Code Snippet #1
Wednesday, March 25th, 2009Write a script that displays the numbers 1 to 4 on the same line, with each pair of adjacent numbers separated by one space.
Just Realized I Was Wrong
Wednesday, March 25th, 2009Someone told me that she knows that I like her secretly so I asked her who told her and of course she wouldn’t say who it was. And since she said she doesn’t meet up with people that she first met online I then told her that whatever it is she’s thinking will pretty much end online. Well people, you see…I should have never said that.
My Foxconn A7DA-S Motherboard
Sunday, March 22nd, 2009Since David didn’t pick up the cases that’s to be powdercoated this Sunday, I decided to take pictures of my motherboard, nothing special…just well…pictures.
Test Your USB Drive’s Read And Write Performance
Friday, March 20th, 2009So I have this 4GB USB thumb drive by Sony which I bought for who knows how much. I wanted to find out what its read and write speed are since I will probably be using it if I manage to fit the Vista or Windows 7 installer in it. I searched around the web and from most of the forums that I’ve seen, they’ve always recommended HD Tune as the weapon of choice in finding out your USB drive’s read and write speed. However the free version and HD Tune only allows you to do check out the read performance of your USB drive. You need to dish out some cash if you want to do both read and write tests.
So I continued searching and eventually I landed on this hiyohiyo’s website called Crystal Dew World. It’s in Japanese but he has an English version of his website. And it looks like I found out what I need…for free!
My Phenom 940 BE
Wednesday, March 18th, 2009Just wanted to share the current state of my AMD Phenom 940 Black Edition. I’ve overclocked it to 3.5Ghz using only the multiplier. It’s also 24Hrs+ OCCT and Prime95 stable and that’s unlike most other people’s overclocks where it’s not really that stable. Heres a couple of pictures!
Project Beauty & Madness (Part 16)
Tuesday, March 17th, 2009Looks like the PC P60 case would get a nice face lift even though it’s already looking all pretty after I painted it. This time though it’s not going to be re-painted…it’s going to be powdercoated for free by my good friend David. Am I going to disassemble it before powdercoating? Probably not. So where am I now with this project?
Random Photo Of My Samsung NC10
Saturday, March 14th, 2009Sigh, nothing to do today except read books, write code for my projects…play games? No. I think I’m only at 10% catching up with life right now. There’s just so many things to do with little time. At least I manage to take a picture of my Samsung NC10!
Project Beauty & Madness (Part 15)
Thursday, March 12th, 20093:1 heat shrinks came in today as well as a 4:1 that I’ll be using on the main PSU’s cable (24-pin). Looks the store wasn’t able to ship all of them at once so I’ll have to wait a couple more days for those stuff to arrive. For the mean time…
Microsoft’s Live Mesh Is A Mobile Person’s Dream Come True
Wednesday, March 11th, 2009When I go to my classes I bring my Samsung NC10 netbook since it’s pretty much my ‘notebook’ for all my classes. I save my notes to my netbook and then transfer it to my desktop at home via a USB flash drive or if I forget my USB flash drive I send an e-mail to myself and download the files from there. Honestly I don’t like it, for me it has too many steps involved just to keep your documents synchronized. I wanted something easier…something where I can just drop and drag files into and it’ll automatically synchronize it with my other devices.
Well hello Live Mesh! Microsoft’s new Live service called Live Mesh may probably be a mobile person’s dream come true. It’s a data synchronization system from Microsoft that allows any kind of file and folder to be shared and synchronized across multiple devices and platforms.
Install Windows Vista Snipping Tool
Wednesday, March 11th, 2009For those of you that do not have Windows Vista’s Snipping Tool installed, here’s how to install it. Keep in mind that you need to at least have Microsoft Windows Vista Home Premium to be able to install the Snipping Tool.
Project Beauty & Madness (Part 14)
Tuesday, March 10th, 2009I’m afraid I can’t continue this project with this case anymore. I can’t find the proper screws and Lian Li hasn’t given me any reply at all whether the ycan send me the assembly screws or not. I’m not asking them to ship it for free, I’m willing to pay. I’ll go ahead and send them an e-mail again. But for now the temporary case is a PC7 Plus from Lian Li.
Project Beauty & Madness (Part 13)
Sunday, March 1st, 2009Alright somethings came up and it will probably slow me down some more, hopefully I can still finish it by the end of March. Here’s what it looks like right now.