RuchiraBlog! Ruchira Sahans Weblog! » Hacks

LOL Mails 2011 March

Ruchira — Tue, 08 Mar 2011 13:52:42 +0000

First of all thumbs up if you noticed January and February LOL mails missing. . Today I got this email to my ruchirablog email address from a dude looked like he read my huawei HSDPA modem unlocking guide!

DAMN I need to start hacking class with “How to hack email accounts and facebook” thingys. BULLSHIT!

Find out uptime of a server without SSH

Ruchira — Sun, 28 Nov 2010 08:19:01 +0000

If you have a VPS or dedicated server you might be definitely interested on keeping long uptime record ( Online time of server without restart). But if you have VPS or dedicated server you will probably have SSH access to your server so you can view uptime using just 1 easy command below

uptime

But if you are on shared hosting server things different and 99% of shared hosting companies doesnt allow SSH access to your hosted server because of security purposes. So its not possible to access the server and view the uptime of your server. But 95% of worlds linux shared hosting companies have cpanel as their server control panel and even they had other control panel like directadmin,kloxo they definitely have phpmyadmin as their mysql control panel.

So there is a cool trick that you can server uptime with phpmyadmin. 99% of you guys might haven’t noticed this yet. Not even uptime you can even view how many queries to the server in any given minute,second,hour etc.

So open up your phpmyadmin and navigate to home or phpmyadmin then status tab, So now in this panel you can see uptime of your server and some other use full stuff.

So its easy like as seen on Ruchirablog

Huawei HSPA modem Antenna

Ruchira — Sat, 04 Sep 2010 12:12:36 +0000

Using Huawei HSDPA modem to access internet? Most of in home HSPA users use HSPA because they don’t have access to ADSL lines because no telephone exchanges nearby. So if HSPA signal strength is low in your area you might expected low internet speed. How ever most of huawei hspa dongles have a socket to plug in external antenna.

So you have a solution to boost your signal but don’t expect a huge boost from this method. Maybe you will able to get like 500kbps or so boost in your internet speeds but only if current signal strength is low and depends on provider.

If you cant find these antennas in your local electronics store you can try ebay. There are lots of Chinese sellers selling those.

PS- To keep in touch with more hacks and you can subscribe to my email feed. No advertising or spam will be sent. You can unsubscribe at anytime!

Google DNS Implementing and Google VS OpenDns benchmarks.

Ruchira — Sun, 28 Feb 2010 14:55:14 +0000

As I said on my previous post DNS is very important factor that directly affects your internet browsing. Google says this abouut the importance of the DNS-

Why does DNS matter?

The DNS protocol is an important part of the web’s infrastructure, serving as the Internet’s phone book: every time you visit a website, your computer performs a DNS lookup. Complex pages often require multiple DNS lookups before they start loading, so your computer may be performing hundreds of lookups a day.

Big G said that. Google lately introduced their own DNS service. Yes its the next step in the process of Googles Internet take over Nevermind. Currently the biggest out of ISP DNS provider is OpenDNS www.opendns.com Before Google introduced their DNS service I used OpenDNS because its way faster than my current ISP’s DNS. OpenDNS has many servers inside USA and many other in leading countries. So its very fast if you live in USA or around. But even in Asia for me OpenDNS is advanced for me because its updating instantly while my local ISP takes about 48 hours to update.

So this is not the time to talk about OpenDNS. Now I have configured my computer and router to use Google DNS system you can do the same read this guide- http://code.google.com/speed/public-dns/docs/using.html . I live in Sri Lanka both googledns and opendns doesn’t have servers in my country or neighborhood. So both services connect to USA servers (GoogleDNS only have servers in America with Level3 network OpenDNS got Anycast Routing Technology that Routes your DNS queries automatically to closest server available,). Lets compare this with Namebench DNS benchmark.

Yes its way faster than OpenDNS here is ping test to OpenDNS servers and Google servers-

Note that 208.67.222.222 is the ip of the opendns while the ip 8.8.8.8 belongs to googledns-

And DNSBench benchmark results-

All this tests shows that GoogleDNS better than OpenDNS for now. ITs your decision to move or not!

Introduction to DNS systems.

Ruchira — Fri, 26 Feb 2010 13:14:19 +0000

What do you mean by DNS? Simple answer is Domain Name Servers. How they work?

Well the best choice to explain this is telephone directories. Imagine that you wan to call some one and you know his/her name but not telephone number. So you need a telephone directory to find his/her number. So you can flip the papers of the directory and search for his name and then find the telephone number you need to know.

DNS service acts same like the telephone directory in your home. When you type www.google.com or any web site address in your browser Internet service need to find the ip of the server where google.com situated. So your computer makes request to find the ip address of the google.com from DNS servers. So DNS servers gets the request and then forward us the ip of the web site you need to go.This process works inside of your computer network so you dont get any visuals of ips.

Typically Internet Service Providers operate their own DNS servers for their customers. They are automatically assigned to your computer if you not manually edit DNS options in your computers network settings. But you can change DNS servers if you like to get more accurate and fast web browsing.

Imagine if your telephone directory is old and un-arranged it takes more and more time to find the phone number. Like the same process the quality of your ISPs DNS server directly affect your web browsing speed. This doesnt means the downloading speed.Slow download and upload speeds doesnt mean your DNS bad.

Come again to the theory of the telephone directory. When you have un-arranged directory it takes more time but it doesnt affect the quality of the call that you make to other party. If you have well arranged telephone directory it takes seconds to find the telephone number but you gets the same quality of the call like previously said.

Bad DNS servers makes slight delay when you request for a web site.

In my next post Ill explain how to optimize your DNS system to be more accurate and Ill do a brief benchmark of newly introduced Google DNS system. SO wait……………….

Activating Voice Calling on Huawei HSPA modems

Ruchira — Fri, 26 Feb 2010 12:09:48 +0000

On my previous post I wrote about how to unlock huawei modem models. So there is another great option in most of Huawei new HSDPA modems (In cheaper models too) . Today I will show you how to actviate voice calling feature hidden on your huawei medem. I have used E156G and it works on this models too. Huawei E156 / E156B / E156C / E156G

First of all you need to download this piece of small software to check if your modem suports voice calls ( No matter if the feature disabled in factory settings we are going to activate it. So its worth to check)

Download it here- http://www.dc-unlocker.com/downloads/get/03FpJrhM

And run it after installing.Make sure to exit Mobile partner otherwise the software wont detect the HSPA modem. And after opening it click scan. it will then display the details of the plugged huawei modem like this-

Look there is a option called Voice Feature. In this screen shot it shows enabled because I already enabled it. In your computer it will show Disabled if your have voice calling option if not it will show Not supported.

So if your software shows Voice Feature – Disabled then its the time to enable it. Click the option called Server in the DC-Unlocker software. It can unlock your locked modem too but it require 20 euros. But it doesnt require money to enable voice feature.

In the user name and password field enter these-

Username- Free

Password- Voice

Then click “check login”. SO DC-Unlocker will login free to unlock voice feature. Like this-

Then browse to “Unlocking” section of DC-Unlocker client and click “Activate Voice”. then it will unlock your voice calling feature!

Wait there some other things to done in software section too. You need to update to Voice calling version of mobile partner software because 95% of modems come without voice calling Mobile partner version. Download the voice calling version here- http://www.dc-unlocker.com/downloads/get/LihV26NW

Warning you are going to flash your Huawei modem with this new version. your current connection profile settings will be lost because of new update. And always remember to update the firmware in a steady power sourced computer. Because if your computer gets stuck or powerloss when updating firmware ( which will take 5~15mins) your modems firmware will be corrupted. So be sure you have steady power source to use with your computer when flashing.

After downloading the New Mobile Partner firmware run it and it will update your current firmware. Voila you have new Mobile parnter with voice calling feature like this!

PS- To keep in touch with more hacks and you can subscribe to my email feed. No advertising or spam will be sent. You can unsubscribe at anytime!

RuchiraBlog! Ruchira Sahans Weblog! » Hacks

LOL Mails 2011 March

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Find out uptime of a server without SSH

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Huawei HSPA modem Antenna

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Activating Voice Calling on Huawei HSPA modems

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