Question:
My pc was infected by trojan, i removed virus by using AVG. but i got new problem that I cant open C:\ drive When I try to open any drive like (C:\,D:\,E:\) its asking application to open with., I choose Explore, but I cant go direct in the drive.
every time i have to open explor first.
 
Answer:
This is actually due to the autorun.inf file that exist in the root of each drive. this is file is created by the virus and it’s hidden, read-only and system file so u will not be directly able to delete it.
 
to delete it, u will have to
1- go Start->Run type cmd and press Enter.
 
2- U will open the Command Line tool, go to the root of each drive with the command cd\ + Enter
 
3- type: attrib -r -h -s autorun.inf  + Enter. This command will remove the permissions on the autorun.inf file
 
4- The next step is to delete this file with the command: del autorun.inf + Enter. This will delete the file.
 
5- Repear the above steps for each drive in ur computer.
 
6- after finishing all drives, reboot and u will access drives easily.

 
Question:
Do I need an Antivirus for Linux?
 
Answer:
Few monthes ago, I was thinking the same way, until I met a friend from Mcafee. He told me about some new techniques for viruses that can spread on computer systems by doing things u think it’s really normal. This is from scripts that can be embedded within video files, music files or even a Word document.
 
From this point, I decided that I won’t use any operating system without antivirus. The advantage of Linux that encourage people not to put antivirus on this operating system is that Windows Viruses cannot run of such operating systems and hence they are harmless.
 
But How about virus programs on linux?? Of course they are really hard to trace !! However, u can find a free version of AVG antivirus for Linux, try it out.
 
Calmav has a disadvantage is that it doesn’t contain an On-Access scanner, which means that it doesn’t scan file automatically, u will need to run the program to check for viruses.
 
 
Question:
I have a wireless box for my internet to use w/ my laptop. How do I make this network be password protected?

Answer:
the setup of ur wireless box, u will find some options for securing ur wireless network
The first option is to created an encrypted network, this is done by choosing encryption method from options, and assign a password key. u will need to update wireless configuation on ur computer to use the same encryption and u will need to enter the same key.
Another option is to make MAC Filtering (also in the setup options of the wireless router). In this option, u will tell the router to deal with computers with MAC addresses in the list.

 

A new cheap PC of 199$ was announced which is shipped with an OS called gOS. g is not for Google, it’s for Green. That’s all!!!

 

First, make sure that arabic keyboard layout is installed from: System -> Preferences -> Keyboard -> Layouts. if not installed, install it by clicking Add and selecting arabic layout from the list.

Second, go to Layout Options tab, and select Group Shift/Lock Behavior -> Alt+Shift changes group.

Yesterday, I decided to replace KUbuntu 7.10 with Ubuntu 7.10. I also downloaded the LiveCD of Ubuntu from internet, and booted from it, installed ubuntu as before.

I noticed in the installation program, a new dialog shows option for migrating Windos XP accounts into Ubuntu, and it detected my existing accounts, but I didn’t choose any one.

The installation goes smoother except for an error in security updates. After installation, I started to figure out this version. The first thing I got is an indication for restricted drivers for my ATI card and Modem. the dialog gives me option to enable both. The modem was enabled easily by checking the checkbox. After checking the checkbox of the modem, Ubunutu downloaded some files from internet, and it enabled it (but I didn’t test it yet).

Checking ATI checkbox gave me error about xorg-driver-fglrx not enabled. I performed some search on internet, and I found the solution. the solution is running the command:

sudo apt-get install xserver-xgl

Then trying to re-check the checkbox, it also downloaded some files from internet, and then ATI optin is now enabled.

Now, trying the bluetooth, I installed the USB bluetooth module, it was also detected in a moment like KUbuntu, I enabled bluetooth in my smart phone, and tried to explore my phone. But it gave me an error saying it’s an invalid location.

After some research on internet, I found that I have to run the command:
sudo apt-get install gnome-vfs-obexftp

After installing this package and restarting, my phone was explored very easily, and files was transfered from and to the phone very easily.

Ubuntu 7.10 enabled Reading and Writing to NTFS partitions so it’s not needed to install any other packages or doing any other configuration.

When I tried to play some music, Ubuntu automatically searched for the codecs, and installed them, then run the music very easily.

Ubuntu comes with firefox, and ubuntu has detected some updates, I confirmed to get these updates, and they was downloaded and installed very easily.

Regarding local networks, Ubuntu 7.10 also automatically detected my Windows PC, and Windows shares, and I was able to transfer files from and to these shares very easily.

As a summary, I found Ubuntu 7.10 better than KUbuntu, and much easier, robust, and also fast.

 

KUbuntu 7.10

April 7, 2008

Yesterday, I downloaded and burned the new Gusty KUbuntu 7.10 on my laptop. I expected to see KDE 4 which was announced to have a new re-design for KDE environment. The ISO image is a normal LiveCD as before. I booted the liveCD and installed it as I did in previous versions.

After I finished the installation, I restarted my laptop to enter the new installed OS. but I faced a black screen after selecting the OS from the startup menu. I re-installed it again, but the same black boot screen appeared.

After about 1 hour from searching internet for a solution. I found the solution which worked for me. Here is the solution:
1- From the selection boot menu select Recovery mode.
2- after booting in recovery mode, type exit and press enter.
3- the gui will start and u can log in
4- Change the resolution in /etc/usplash.conf to 1024×768
5- Add vga=791 to the kernel line in /boot/grub/menu.lst
6- sudo update-initramfs -u -k `uname -r`      (note the direction of the stray)

now reboot, and everything goes fine. the problem was in the resolution of the boot screen, it was not fitting my laptop 15.4 wide screen.

I’m now able to log in to the KUbuntu 7.10. The first look gives me nothing. the same look as before with K menu at left, and blue background (with some changed effect for kubuntu).

I open the Konqueror file manager, and I found that KDE 3.5.8 is the KDE version installed with the 7.10, but I noticed something, the window open very fast, it was faster than it was before in KDE, with the jumping cursor which stay jumping forever even application if open and even computer is OFF !! now, the window is opening faster, and this is a good point.

Dolphin is a new file manager shipped with kubuntu. with Dolphin, I accessed Windows shares on another computer very easily, and all my Windows drives were seen very easily.

One of things made me angry, it the sources.list, it almost contains no repository, and it was not easy to install firefox, thunderbird, kdevelop or eclipse. I searched internet for other sources.list, and I found some other repositories.

I will still testing this version, and I will write more for any other points.

 

Today, we faced a problem that some files are hidden under Windows and
cannot be shown with Windows options.

Try out this command:

ATTRIB [+R | -R] [+A | -A ] [+S | -S] [+H | -H] [drive:][path][filename]
[/S [/D]]

+ Sets an attribute.
– Clears an attribute.
R Read-only file attribute.
A Archive file attribute.
S System file attribute.
H Hidden file attribute.
[drive:][path][filename]
Specifies a file or files for attrib to process.
/S Processes matching files in the current folder
and all subfolders.
/D Processes folders as well.


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Microsoft has published a preview of Windows Search 4.0 to update its engine indexing in Windows XP, Vista, Windows Server 2003 and Server 2008. Available for 32 editions and 64 bits of the different systems, Windows Search 4.0 is an opportunity for the publisher to improve some important points.

Here are the main innovations presented by Redmond:

  • Many of the problems corrected
  • The complaints run an average of 33% faster than version 3.0 (included in Vista)
  • All computers running Windows 4.0 Search of the same network now index the contents of each of them, according shared directories. The search is now faster and consumes fewer resources.
  • The index can now be restored since the last known good state. In case of problems, its content is no longer lost and rebuilt from scratch.
  • Indexing Exchange is now faster, packets sent over the network are fewer, as well as invitations PRC. The process is also much lighter on the Exchange server itself.
  • The support for political groups has been expanded and improved, policies per user has been added
  • Support EFS: encrypted files are now indexed in the same way as other research to provide natural, and without difference.

For downloads, it is enough to go on one of the following pages:


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Have you ever noticed that when you’re not using your computer or even not “intensively” using it, it seems like your hard drive is really busy as though it is searching for something? The hard disk drive LED will start flashing and sometimes you can even hear that the hard drive is grinding. Funny thing is this can still happen even if you have closed all running programs. If you’re using laptop, it’s even worse because the fan will start spinning like mad when the hard drive is working hard and this will shorten the battery life!

Most of the time the culprit that causes your hard drive to work are anti-virus software, anti-spyware software, instant messenger programs (IM), and Microsoft’s own indexing service. It’s OK if a legitimate program is making your hard drive to work but you’ll never know if a hacker is doing a search on your hard drive looking for confidential stuff! Unfortunately, Microsoft didn’t include a tool to diagnose and check what program is secretly accessing your hard drive. The built-in Windows Task Manager doesn’t show you anything at all other than CPU and Memory Usage. So I am going to show you how to find out what process is busy reading and writing your hard drive when you’re not causing it.
(more…)

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