Showing posts with label os. Show all posts
Showing posts with label os. Show all posts
Wednesday, April 6, 2011
Recently I installed Ubuntu [Linux] as a dual boot OS with Seven already installed on my Machine. I faced a lot of problems, but the end result was worth all the trouble as Ubuntu rocks
In this thread I will post the step by step method to install Ubuntu (or any of its other versions such as Mint) as a dual boot OS on Seven machine. I will also specify some mistakes I made and what I learned outta those.
In this thread I will post the step by step method to install Ubuntu (or any of its other versions such as Mint) as a dual boot OS on Seven machine. I will also specify some mistakes I made and what I learned outta those.
The first step to install Ubuntu was to creat a partition on my existing hard drive. There are two ways how you can do it in Seven:
1. In built 'Shrink Disc' feature in Seven
2. Use a disk partition software to do it for you.
Ubuntu or Mint comes with an inbuilt disk partitioner. What is required is a unallocated free space on your hard drive so that it can be partitioned while installing Ubuntu.
1. Making Space using "Shrink Disc" feature in Seven:
a. Log on to Seven.
b. Right-Click on "My computer" in the main menu and select "Manage"
c. It will ask for administrator password, enter it and click "allow"
d. Click on Disc Management.
e. There is will show the available partitions and external storage devices if any
f. Right Click on the disc partition you want to shrink and select "shrink volume"
g. Seven will assess how much space can be made free.
h. It will suggest the value which can be made free. Be sure that this is at least 10-15 GB. If you dont have this space, you will have to delete some data to make space for the partition.
i. Then select "shrink"
j. Seven will shrink the volume and show the new freed space as "unallocated" space.
k. After this close the window. You are done with shrinking
2. Making Space using a Disk Partition software:
a. I had problem that Seven used to say "access denied" when I tried to shrink the main C: Drive (I had only on partition )
b. So I used a Free Disk Partition Software to shrink the space.
c. You can use the following software: EasyUS partition Master-Home Edition which you can download here:
d. Using this it is easy to create space for a new partition.
e. Using the above program, select the partition you want to shrink/resize
f. Using the "Resize" tool you can shrink the volume and the rest of the space would be shown as "unallocated space"
g. Apply the changes and you are done
The next step is to install Ubuntu
1. You will need to download the latest ISO for Ubuntu or Mint from here:
2. You will need to burn this ISO image on to a CD (700 MB or more).
3. For burning this ISO you will have to use an ISO burning software. One such free software is: Free ISO burner:
4. Be sure to burn the ISO image at a very slow speed. This extra time spent will help you install Linux trouble-free.
5. When the disc is ready, restart the computer. Be sure that in BIOS setup the CD drive is above the hard disc in boot priority.
6. Once restarted the disc will boot before the hard disc.
7. In the menu that is displayed, select "run installer" and follow the instructions.
8. Once you have selected language, Location and Keyboard configuration....the disk partitioner of ubuntu will run and show you various options as to where Ubuntu should be installed.
9. Select "Largest continuous free space" as this will select the "unallocated space" that we have created in the earlier step.
10. After this follow the next instructions to complete the installation.
11. The installation will prompt you to import the settings from Seven. If you want do import these.
12. I preferred not to import as it will copy the documents from Seven partition to the new partition of Ubuntu and just eat up the partition space. You can always access the Seven documents from Ubuntu as Seven partion will be shown as a hard disk in "My computer".
13. Complete the installation. It will prompt to restart the computer. Do so.
14. After restart, the menu will show Ubuntu and Seven a dual boot OS and now you are free to choose the OS you want to load
1. In built 'Shrink Disc' feature in Seven
2. Use a disk partition software to do it for you.
Ubuntu or Mint comes with an inbuilt disk partitioner. What is required is a unallocated free space on your hard drive so that it can be partitioned while installing Ubuntu.
1. Making Space using "Shrink Disc" feature in Seven:
a. Log on to Seven.
b. Right-Click on "My computer" in the main menu and select "Manage"
c. It will ask for administrator password, enter it and click "allow"
d. Click on Disc Management.
e. There is will show the available partitions and external storage devices if any
f. Right Click on the disc partition you want to shrink and select "shrink volume"
g. Seven will assess how much space can be made free.
h. It will suggest the value which can be made free. Be sure that this is at least 10-15 GB. If you dont have this space, you will have to delete some data to make space for the partition.
i. Then select "shrink"
j. Seven will shrink the volume and show the new freed space as "unallocated" space.
k. After this close the window. You are done with shrinking
2. Making Space using a Disk Partition software:
a. I had problem that Seven used to say "access denied" when I tried to shrink the main C: Drive (I had only on partition )
b. So I used a Free Disk Partition Software to shrink the space.
c. You can use the following software: EasyUS partition Master-Home Edition which you can download here:
d. Using this it is easy to create space for a new partition.
e. Using the above program, select the partition you want to shrink/resize
f. Using the "Resize" tool you can shrink the volume and the rest of the space would be shown as "unallocated space"
g. Apply the changes and you are done
The next step is to install Ubuntu
1. You will need to download the latest ISO for Ubuntu or Mint from here:
2. You will need to burn this ISO image on to a CD (700 MB or more).
3. For burning this ISO you will have to use an ISO burning software. One such free software is: Free ISO burner:
4. Be sure to burn the ISO image at a very slow speed. This extra time spent will help you install Linux trouble-free.
5. When the disc is ready, restart the computer. Be sure that in BIOS setup the CD drive is above the hard disc in boot priority.
6. Once restarted the disc will boot before the hard disc.
7. In the menu that is displayed, select "run installer" and follow the instructions.
8. Once you have selected language, Location and Keyboard configuration....the disk partitioner of ubuntu will run and show you various options as to where Ubuntu should be installed.
9. Select "Largest continuous free space" as this will select the "unallocated space" that we have created in the earlier step.
10. After this follow the next instructions to complete the installation.
11. The installation will prompt you to import the settings from Seven. If you want do import these.
12. I preferred not to import as it will copy the documents from Seven partition to the new partition of Ubuntu and just eat up the partition space. You can always access the Seven documents from Ubuntu as Seven partion will be shown as a hard disk in "My computer".
13. Complete the installation. It will prompt to restart the computer. Do so.
14. After restart, the menu will show Ubuntu and Seven a dual boot OS and now you are free to choose the OS you want to load
Wednesday, April 6, 2011 0
Monday, February 28, 2011
Google Talk keyboard shortcuts and tricks
* Change the font size – While holding the control key, move the scroll wheel on your mouse either up or down. This trick works while being focused in either the read or write area.
* Insert line breaks - If you want to have a message that spans multiple paragraphs, just hold shift and hit enter. You can add as many new lines as you want to create.
* Bold Text – To write something bold, you can use an asterisk before and after the word, like *this* .
* Italic Text – To use italics, use an underscore before an after the word, like _this_ .
* Switch windows – Hitting tab will cycle through open windows. It will select minimized conversations, to expand them just hit enter. If you just want to cycle through IM’s and don’t care about the buddy list, control-tab will do that and will automatically expand a minimized conversation if you settle on one.
* Invitation Tips – You don’t need to say Yes or No when someone wants to add you as a friend; you can simply ignore it, the request will go away. (On the other hand, someone with whom you chat often will automatically turn to be your friend, unless you disable this in the options)
Keyboard Shortcuts:
* Ctrl + F4 - It closes the current window.
* Alt + F4 - It closes the current window.
* Alt + Esc - It Minimize all the windows.
* Windows + Esc – Open Google Talk (if it’s minimized, or in the tray)
* F9 – Open Gmail to send an email to the current contact.
* F11 - It initiates a telephonic call with your friend.
* F12 - It cancels a telephonic call.
* Esc - It closes the current window.
* Change the font size – While holding the control key, move the scroll wheel on your mouse either up or down. This trick works while being focused in either the read or write area.
* Insert line breaks - If you want to have a message that spans multiple paragraphs, just hold shift and hit enter. You can add as many new lines as you want to create.
* Bold Text – To write something bold, you can use an asterisk before and after the word, like *this* .
* Italic Text – To use italics, use an underscore before an after the word, like _this_ .
* Switch windows – Hitting tab will cycle through open windows. It will select minimized conversations, to expand them just hit enter. If you just want to cycle through IM’s and don’t care about the buddy list, control-tab will do that and will automatically expand a minimized conversation if you settle on one.
* Invitation Tips – You don’t need to say Yes or No when someone wants to add you as a friend; you can simply ignore it, the request will go away. (On the other hand, someone with whom you chat often will automatically turn to be your friend, unless you disable this in the options)
Keyboard Shortcuts:
* Ctrl + F4 - It closes the current window.
* Alt + F4 - It closes the current window.
* Alt + Esc - It Minimize all the windows.
* Windows + Esc – Open Google Talk (if it’s minimized, or in the tray)
* F9 – Open Gmail to send an email to the current contact.
* F11 - It initiates a telephonic call with your friend.
* F12 - It cancels a telephonic call.
* Esc - It closes the current window.
Monday, February 28, 2011 0
Sunday, February 20, 2011
NetQin Mobile, one of the leading mobile security software providers has just announced that it has recently identified a new virus on Android devices. According to NetQin, the virus known as “MSO.PJApps” is said to be causing private data leaks and to secretly subscribe users to paid services.
It seems that the virus was repackaged into some of the most popular mobile applications available for download from an application download site in China.
As soon as the user installs the application containing the virus on his mobile device, “MSO.PJApps” will connect to certain sites and start sending text messages containing the mobile device's IMEI number, as well as other data to designated numbers controlled by a remote server,
Besides the above mentioned actions, the virus receives commands from the remote server to download and install software without user's permission, which may lead to unintended service subscription charges.
According to NetQin, “the "MSO.PJApps" virus is injected into legitimate mobile applications and modifies the application entry in Manifest.xml to add certain modules. It is activated in the background with a change in signal and when the relevant program starts automatically.”
“It encrypts the domain names of the site which is connected to. The virus author disguises the malicious URLs as being encrypted with BASE64, while the URLs are actually encrypted with an algorithm designed by himself,” concluded the Mobile Security Center of NetQin Mobile Inc.
The mobile software security developer that identified the virus also found a solution to the threat within 12 hours and updated its virus database to ensure that Android device users are protected against the intrusion.
Even though the virus seems to be limited to Chinese market for the moment, there's no telling if this spreads to other application markets
It seems that the virus was repackaged into some of the most popular mobile applications available for download from an application download site in China.
As soon as the user installs the application containing the virus on his mobile device, “MSO.PJApps” will connect to certain sites and start sending text messages containing the mobile device's IMEI number, as well as other data to designated numbers controlled by a remote server,
Besides the above mentioned actions, the virus receives commands from the remote server to download and install software without user's permission, which may lead to unintended service subscription charges.
According to NetQin, “the "MSO.PJApps" virus is injected into legitimate mobile applications and modifies the application entry in Manifest.xml to add certain modules. It is activated in the background with a change in signal and when the relevant program starts automatically.”
“It encrypts the domain names of the site which is connected to. The virus author disguises the malicious URLs as being encrypted with BASE64, while the URLs are actually encrypted with an algorithm designed by himself,” concluded the Mobile Security Center of NetQin Mobile Inc.
The mobile software security developer that identified the virus also found a solution to the threat within 12 hours and updated its virus database to ensure that Android device users are protected against the intrusion.
Even though the virus seems to be limited to Chinese market for the moment, there's no telling if this spreads to other application markets
Sunday, February 20, 2011 0
Saturday, February 5, 2011
"BOHU"-Trojan to Disable Cloud-Based Antivirus
A recent blog entry from the Microsoft Malware Protection Center details information about a new malware (called Win32/Bohu.A) which is specifically designed to disable and mislead cloud-based antivirus software. Cloud-based antivirus software differs from traditional antivirus software in that the antivirus client (running on the PC) sends important threat data to a server for backend analysis, and subsequently receives further detection and removal instruction.
The Bohu Trojan originates in China where there is a predominate use of cloud-based antivirus software. Once a Windows based machine is infected the malware installs different network level filters to disrupt and block the antivirus client accessing the backend antivirus services on the Internet. As well as writing random data at the end of its key payload components to avoid hash-based detection, Bohu also installs a Windows Sockets service provider interface (SPI) filter to block the antivirus network traffic as well as a Network Driver Interface Specification (NDIS) filter. The NDIS filter then stops the antivirus client from uploading data to the server by looking for the server addresses in the data packets.
A recent blog entry from the Microsoft Malware Protection Center details information about a new malware (called Win32/Bohu.A) which is specifically designed to disable and mislead cloud-based antivirus software. Cloud-based antivirus software differs from traditional antivirus software in that the antivirus client (running on the PC) sends important threat data to a server for backend analysis, and subsequently receives further detection and removal instruction.
The Bohu Trojan originates in China where there is a predominate use of cloud-based antivirus software. Once a Windows based machine is infected the malware installs different network level filters to disrupt and block the antivirus client accessing the backend antivirus services on the Internet. As well as writing random data at the end of its key payload components to avoid hash-based detection, Bohu also installs a Windows Sockets service provider interface (SPI) filter to block the antivirus network traffic as well as a Network Driver Interface Specification (NDIS) filter. The NDIS filter then stops the antivirus client from uploading data to the server by looking for the server addresses in the data packets.
Saturday, February 5, 2011 0
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