Saturday, July 20, 2013

Ubuntu 11.10 waiting up to 60 more seconds for network configuration 'problem'

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I upgaded my ubuntu 11.04 Natty to ubuntu 11.10 Oneiric Ocelot a few weeks ago. To handle some issues I have needed to modify /etc/network/interfaces file. After some modifations I get the message:"waiting up to 60 more seconds for network configuration" when booting.
I have found the reason of this is to have any interfaces in /etc/network/interface file as auto. To correct the problem just remove all rows and leave it as default like:



Another solution can be modify the script /etc/init/failsafe.conf>>This script is the script that control configuration of network interfaces when booting and if they are not all configured send the message above to the screen.. So let's take a look at that script:



As we see and understood from the scripts commands: that script is controlling the waiting duration when booting.. The script keeps waiting us totally 111 seconds.. If your system doesn't need to wait  just insert a # character at the beginning of sleep calls or remove these rows. If your system needs to wait, but you don't wanna be wait this much, just change the values as you want.. Problem solved in either ways, but I recommend the first one..

Note: The values of sleep calls in your script may be different than my script, that is because of I have made a modification before in that script..
In my case, I solved my problem with two ways. In the second way the final look of my failsafe.conf script is given in the following:



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If you have any question, or need some help leave a comment below..
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Friday, July 19, 2013

Modelling a Digital Communication System using Matlab

I modelled the digital communication system by a simple script. In first, if you haven't installed Matlab in your system yet, you can see my article about installation of matlab on Linux.
A digital telephone converts an analog signal(our voice) to a digital signal before transmission. While the analog signal takes on real number values, the digital signal takes on only a finite set of integer values. We can model these implementation effects and save memory by storing the digital as an integer data type rather than as type double. I did this by writing the script in the following. When I run I got the pics showing the script is nicely working in the below of the script..



See the pics below:

digital_communication_system_figure1

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Vodafone Mobile Connect Software in Ubuntu

To install vodafone mobile connect software enter the following commands into terminal:
wget https://forge.betavine.net/frs/download.php/626/vodafone-mobile-connect_2.25.01-1_all.deb
sudo dpkg -i vodafone-mobile-connect_2.25.01-1_all.deb
After the installation you can run the software from Applications->Internet Category. The picture of the program is in the following. Have fun..
See the picture below:

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Android x86 Wifi-Wireless Problem

Hi guys! Nowadays most of the people have a trouble with Android x86 wifi-wireless problem.
To handle this I figured out a solution.
If you haven't tried Android on a pc, you may  wanna see my post about how to install android on pc.

Solution:
Open Android  and press Ctrl+Alt+F1 to open terminal then type the following rows:

netcfg        --to see what you have as connection devices in your computer
                    probably you see lo,eth0 and maybe eth1--
then type
netcfg eth0 up   --to open eth0-- after that type
netcfg setprop net.dns1 8.8.8.8
close the terminal by pressing Ctrl+Alt+F7

And have fun with your net connection.
This solution is worked for a friend. Maybe it will work for you too!.

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Thursday, July 18, 2013

Worldlist Maker with Python

Fistly, if you haven't installed python in your system, you can wanna read my post about installation of python on linux.
Some peoples, especially hackers and that who wanna be a hacker :)  needs wordlistmaker scripts to hack passwords. A wordlistmaker script required to be very fast and very efficient. Because, most wordlists have thousands of words. So I choosed the language as 'Python' due to its speed. As we know, python is faster than C, C++ , java and pascal etc. I wrote the script and it worked perfectly! You can see some photos in the following. If you want my Wordlist Maker, contact me by using my email which is given in the right sidebar..

Watch the video below:



Working windows and photos : 




Click the following picture, see it is nicely working!













Download the Code!

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Sunday, May 26, 2013

How to Encrypt Files in Linux

To encrypt a file we are going to use gpg software. That software is a command line executable software. First you need to install it if it is not installed before in your pc. To do this open a terminal and type:

sudo apt-get install gpg

After that compress the file you want to encyrpt. And type in the terminal

gpg -c fodername.tar.gz

and then type your password twice. It's done :). Delete the file you encrypted. Use foldername.tar.gz.gpg file to access your files.
To pass the password and reach your files again type:

gpg foldername.tar.gz.gpg

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How to shutdown the Linux PC automatically at a specific time

Linux has a beautiful code which provides the PC can close itself at a specific time which is determine by the user. :)
To do this use the command given the next line:

sudo shutdown -h x

here x is the time with unit of minutes.
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