Sharing files between two ubuntu systems through local router

I have a old desktop running Lubuntu 11.04 and it is connected to internet through a wireless router. While I store lot of information on this computer, I also have a laptop running Ubuntu 11.04 that I most of the times work on and it is also connected to internet through the same router. Transferring files between these two machines is important to me. There are countless ways you could do it, but I preferred ssh to have a safe and reliable connection through the local router. If you are willing to do the same then here's how you do it.

Step 1: Install ssh on both the machines. Run this command in terminals of both the linux machines.

sudo apt-get install ssh

Step 2: Learn the IP address of your desktop. This can be done by right clicking the connection icon on the panel and then on "Connection Information".

Otherwise you can just run the following command and read for "inet addr:" field.

ifconfig

In my case, it is 192.168.1.3.

Step 3: Go to your laptop. Find "Connect to Server" option.

If you are using GNOME then you find this on "Places -> Connect to Server".

If you are using UNITY then you find this option by opening Nautilus. Go to File -> Connect to Server.

You get this window -

Step 4: Fill details into the fields and click Connect.

Service type must be selected to SSH.

Server field takes the address of the computer to which you want to connect to.

Port is 22, which is a TCP standard for SSH Connections.

Folder that you want to share.

Username to access the desktop.

You can add a bookmark and give it a name for you to access it next time.

Step 5: Once you are done, click on "Connect". It prompts for password. Enter it and you are done. You have successfully established file sharing from your desktop machine to your laptop machine. You can do the vice versa by following Step 3, 4 and 5 on your other machine.

PS: I have used terms 'laptop' and 'desktop' everywhere. But this need not be the case and procedure is same for any two machines connected through same router. 

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How to install Kernel v3.0 on Ubuntu 11.04

Kernel v3.0 is out there and will be released with Ubuntu 11.10 and yet, there are no kernel updates for Ubuntu 11.04 after Kernel v2.6.38. If you are very eager to install kernel 3.0, then you can build them directly from the source code. Or just use the packages that are used to install Kernel 3.0 on Ubuntu 11.10. Since the latter approach is simple and easy, I will mention step by step instruction to install Kernel v3.0 on your Ubuntu 11.10 Natty Narwhal.

Step 1: Download the debian packages from here.

For 32 bit users -

1. linux-headers-3.0.0-0300rc2_3.0.0-0300rc2.201106081532_all.deb 2. linux-headers-3.0.0-0300rc2-generic_3.0.0-0300rc2.201106081532_i386.deb 3. linux-image-3.0.0-0300rc2-generic_3.0.0-0300rc2.201106081532_i386.deb For 64 bit users - 1. linux-headers-3.0.0-0300rc2_3.0.0-0300rc2.201106081532_all.deb 2. linux-headers-3.0.0-0300rc2-generic3.0.0-300rc2.201106081532_amd64.deb 3. linux-image-3.0.0-0300rc2-generic_3.0.0-0300rc2.201106081532_amd64.deb

 

Step 2: Once you have downloaded all the files, place them into a single folder. Browse to that folder from your terminal and then copy paste the following code into the prompt.

sudo dpkg -i linux-*

The execution will continue to install kernel 3.0 on your Ubuntu 11.04. Just in case kernel 3.0 mess up, do not remove previous versions. You can always choose from the previous versions in the grub.

If you have or happen to install this, then please comment on the power consumption and other pros and cons of kernel 3.0.

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How to jailbreak iPod touch?

There are so many tutorials and videos out there that teach how to jailbreak ipod touch and iphones but the techniques have improved way too much and here is the easiest way which is just a  matter of two clicks to get your iPhone or iPod touch jailbroken. If you are not sure what jailbreaking is then go to the wikipedia page to know more about it.

Why would anyone want to jailbreak his device?

There are a number of reasons. Jailbreaking is similar to rooting your android phones. Jailbreaking gives you much more control over your device. For example, iOS does not by default allow you to change the wallpaper or the theme. But jailbroken devices do.

Here are the assumptions that I've made -

You have a iPod touch or an iPhone running firmware 3.1.2.

Steps follow -

1. Download Blackra1n for your firmware from here - http://blackra1n.org/download-blackra1n/

2. Start the blackra1n.exe

3. Your device will be automatically detected. Just click on the only button that blackra1n.exe provides. Wait for a few minutes and your device will reboot.



4. When your device reboots, you will find a new icon called blackra1n in your device. Open it. Connect to the internet. Download 'Cydia' Installer. Once you're done there will be another icon on your device called 'Cydia'. Using this installer, you get to download lot many applications to your iphone!



This is how you jailbreak a iPod touch or iPhone :) Hope that helps.

PS: There are other ways of jailbreaking a device. This method involves using blackra1n. There are other jailbreaking agents like redsnow, snowbreeze etc. But I personally like blackra1n for its simplicity.

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Format from FAT32 to NTFS without loss of data

FAT32 is a file system supported by all operating systems. FAT means File Allocation Table. This provides maximum partition size of 32GB. Disk Quota management is not possible using this file system and the main problem here is the read mechanism. There exists sequence read mechanism under FAT32 and hence the transfer speed of data is very less. This reduces the performance of the system.

NTFS is a new file system and this is supported by all operating systems as well. NTFS means New Technology File System. This provides maximum partition size of 2TB which is very very large. There exists Disk Quota management feature enabled so that the disk can be used to store specified amount of data only. This file system provides Enhanced Binary Tree architecture and hence the transfer speed will be very very high and performance increase as well.

But the main problem is how to change the file system format from FAT32 too NTFS without erasing  the data in the drive?

Techspace has an answer for this problem and the solution is very very simple.

Steps to convert from FAT32 to NTFS without erasing the data.

• Go to command prompt.

[stextbox id="grey"]convert C: /FS:NTFS[/stextbox]

• Enter the above command in command prompt and wait till the process completes. After the process is completed, the specified drive will be converted to NTFS without erasing your data on the drive.

• In my case, C: is the drive which i have taken into account. If you want to format your drive, then you can specify that corresponding letter.

• FS: means File System.

• convert will convert that corresponding drive to NTFS without erasing the data in that drive.

Isn't this a nice trick? Subscribe for our feeds and please do comment.

Format from FAT32 to NTFS without loss of data

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Metal X 1.2 - Beautiful Gnome Shell Theme

Gnome gives very little applications to customize the appearances. The default theme may look quite good, but any person would eventually get bored of it and would want a change. Lately, lot of third party developers have released themes for Gnome Shell. Here is one of those most beautiful ones.

Metal X Theme

Download Gnome Metal X Theme from here.

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Restore GRUB 2 after Windows installation wipes it out

One of the biggest problems of installing windows after installing ubuntu is that windows wipes out the Grub 2 and makes Ubuntu inaccessible. The solution to it is available everywhere on the internet and some are on mytechspace too. But since there are different methods, it is natural for anyone to get confused. So here I've summarized all the known methods to restore GRUB 2.

Before getting started, I assume you are in this situation. You have just installed some version of Windows, it could be Windows XP or 7 or Vista or anything. Your GRUB (Boot loader) is gone and you have no way to boot Ubuntu. You have a Ubuntu Live/Installation CD but you do not want to install it afresh again. You boot windows and open mytechspace and you follow one of these methods.

Method 1

Step 1: Boot Ubuntu using the Ubuntu Live CD and open Terminal through it.

Step 2: Execute the following command and find out which partition the Linux (Ubuntu is installed)

[stextbox id="grey"]sudo fdisk -lu[/stextbox]

The output of the instruction will be a few columns. Check the row that ends with "Linux". The First column of that respective row gives the partition where your Linux is installed.

In my case it is /dev/sda3

Step 3: Create a directory to mount this partition

[stextbox id="grey"]sudo mkdir  /media/mntlinux[/stextbox]

Step 4: Mount the Linux ( Ubuntu ) partition.

[stextbox id="grey"]sudo mount /dev/sda3 /media/mntlinux[/stextbox]

Step 5: Now Install Grub.

[stextbox id="grey"]sudo grub-install --root-directory=/media/mntlinux /dev/sda
[/stextbox]

Method 2

Install Grub-Customizer. This is one of the easiest way of installing GRUB. Just install grub customizer by executing the following in your terminal -

[stextbox id="grey"]sudo add-apt-repository ppa:danielrichter2007/grub-customizer
sudo apt-get update
sudo apt-get install grub-customizer
[/stextbox]

If you find any problem with any part of this, please comment here. We will be glad to help.

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How to install KDE 4.7 on Kubuntu 11.04

One of the most popular desktop environments is KDE. KDE has moved from version 4.6 to  version 4.7. KDE 4.7 promises improved stability and performance. A brief snapshot of what's new is listed down here. For detailed information click here.

What is new in KDE 4.7?

• Plasma Workspaces become more Portable with the help of KWin. Oxygen theme improved.

• Updated applications -
  Kontact ported to Akonadi.
  KMail 2 introduced.
  Dolphin, the KDE's file manager gets a cleaner look and deeper integration with source code management systems.
  Marble,  the virtual globe application now with voice navigation support, a map creation wizard and more.
  Gwenview, the KDE image viewer now supports comparing images.
  More...

• Improved Multimedia and Semantic capabilities in KDE Platform.

• New instant messaging integrated directly into Desktop.

Installation Instructions

If you are running Kubuntu 11.04 with KDE 4.6 then execute the following instruction in Konsole to upgrade to KDE 4.7.

[stextbox id="grey"]

sudo add-apt-repository ppa:kubuntu-ppa/backports

sudo apt-get update

sudo apt-get upgrade

[/stextbox]

Kubuntu 11.10 is scheduled to release in October 2011 and 11.10 will be shipped with KDE 4.7 by default.

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Ubuntu 3D Visual effects in Virtual Box

Ubuntu 11.04 need 3D acceleration to work. But some systems may not provide support for 3D acceleration and some systems will provide but the feature will not be enabled in Virtual box. Then how can we get 3D visual effects in Virtual box for Ubuntu? Below is the steps to go through.

• Click here to Install virtual box and Ubuntu in Virtual box.

• If you need USB 2.0 support, Virtualbox RDP and PXE boot for Intel cards you can also download the extension pack from here.

• First check whether you have enabled option of 3D acceleration in display tab of Virtual box.

• Now type the following commands in terminal.

sudo apt-get update
sudo apt-get install dkms
sudo apt-get install virtualbox-ose-guest-utils

Now you will be able to have 3D acceleration and visual effects in Ubuntu through virtual drive.

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Ubuntu 11.04 unity in Virtual Box

Virtual Box is one of the best virtual system environment provider. Using which, we can host and use many operating systems within a main system. Now lets see, how to install Ubuntu in virtual box.

Steps :-

• Download Virtual Box from here.

• Download and get image file of Ubuntu 11.04.

• Open Virtual Box and click on New button.

• Type Ubuntu in name and select Operating System as Linux and version as Ubuntu.

• Set 512 as base size.

• Select Create new harddisk option and then click next. Now select Fixed-size storage.

• Now set Harddisk size as 4 or 8GB.

• Now click on Display tab in left panel and check Enable 3D acceleration option and click OK.

That's it. Ubuntu is ready to be used in Virtual Box.

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Install Turpial in Ubuntu

You may have tried a lot of different twitter clients on Ubuntu. The default social network manager on GNOME, the Gwibber is little cluttered and behaves erratic at times. Here is an alternative to all of them - Turpial. Turpial is twitter client that works like a charm. It also supports identi.ca and is probably going to add facebook support soon. Here's the snapshot of it.



Installation Instructions -

You can install it from PPA by executing the following instructions -

[stextbox id="grey"]

sudo add-apt-repository ppa:effie-jayx/turpial

sudo apt-get update

sudo apt-get install turpial

[/stextbox]

Otherwise you can download the .deb package from here and install it. Make sure you select the proper package for your version.

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LoJack

What is one of the most common differences between a laptop and a PC, the prior is mobile. What if you lose it or it gets stolen.....Well fear not because LoJack comes to the rescue........using which you can recover, delete, lock and locate your laptop to avoid disclosing of your personal info to some strangers or a thief.............



LoJack is a peronalised software from 'Absolute Software' which allows you to locate the actual position of your laptop, lock your laptop to unknowns, delete sensitive data and also provides you with the chance of recovering your laptop if its stolen.

These are, the most important features of LoJack

Recover

Here, If your protected by LoJack and your computer is stolen, the team can use their technology to track it, and work with local law enforcement to get it back in your hands.

Lock

Use Device Lock to block your computer remotely, denying potential identity thieves access to your computer and personal data. You can also choose to display a customized lock-out message onscreen. You could, for instance, display contact information that would help a good Samaritan return your computer to you.

Delete

The contents of your hard drive might be worth more to you — and a thief — than the laptop itself. But our Data Delete feature helps you prevent costly and traumatic identity theft. With it, you can remotely and selectively erase sensitive files, personal photos, financial data, and stored passwords. So you stay safe and in control.

Locate

Using GPS or Wi-Fi geolocation, LoJack for Laptops can map and display your laptop's current and past whereabouts. So you'll know whether it's simply left behind, or something more serious. Even when your laptop is safe and sound, you can see that LoJack for Laptops is on the job

And if you still don't understand what LoJack can do. Here is a video to explain in Simple words

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Kaspersky 2012 Internet Security released

Most awaited and highly tested anti virus software from kaspersky has been released. This provides high security for PC's with lot of additional features.

News about kaspersky :-

• Smart look and feel. A clean and eye candy UI.

• Real-time protection against viruses and spyware Improved!

• Scanning of websites and emails for malicious code Improved!

• Protection for your digital identity at all times Improved!

• Vulnerability scan and treatment advice

• Easy-access Desktop gadget New!

• Improved: Rescue CD disinfects the system after malware attacks

• Improved: Advanced antimalware technologies even allows installation on infected PCs

Screen Shots:-

Super Cool news features :-

• URL advisor. Search results will be marked if they are found danger.

• Performance and load efficiency on CPU.

• File advisor to know the reputation of file before running.

• Automatic critical scans and security against new and hazardous trojans and malwares.

Minimum Requirements:-

Windows XP

Processor 800 MHz or higher










512 MB of available RAM










480 MB free space on the hard drive

Windows Vista/ 7

Processor 1 GHz 32-bit (x86)/64-bit (x64) or higher










1 GB of available RAM (32-bit) or 2 GB of available RAM (64-bit)










480 MB free space on the hard drive

Download kaspersky internet security from here.

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Fix rundll32.exe in Windows

Rundll32.exe is a host process which helps us to execute all dll files. This is the compulsory file which is needed by windows and if this gets corrupted, then our system is surely compromised.

To find whether your system is compromised or not, you just have to open task manager and look for rundll32.exe in processes tab. If there exists more than one instance of rundll32.exe, then your system is infected or compromised for sure. If it is, then what is the solution to revert it back? Re-installing the windows? 100% not. There is a simple solution. Go ahead and follow the simple steps given below and your problem will be solved within seconds.

• Open run using Start menu or keyboard shortcut Ctrl+R. Type cmd to open Command Prompt.

• Now type the following command to take ownership of the file

takeown /f  C:\\Windows\\System32\\rundll32.exe

• Now type

cacls C:\\Windows\\System32\\rundll32.exe /G abcd:F

(NOTE: Replace ‘abcd’ with your System Username)

• Now go to C:\\Windows\\System32 and delete the rundll32 file. If you still cant delete, restart your computer in Safe Mode and open CMD. Then type in

del C:\\Windows\\system32\\rundll32.exe.

• Download this rundll32.exe file from here and copy it to C:\\Windows\\System32 folder.

That's it. Problem solved.

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Avast 6.0.1203 with registered serial key free Download

Avast one of the best antivirus for windows has released its newer version 6.0.1203. Avast it found to be one of the good antivirus in the current market. It helps us to get rid of lot of viruses and also provides protection against internet spammers and etc...

Download Avast 6.0.1203 with registered serial key from here.

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Install Gnome 3 on Ubuntu 11.04

Gnome 3, the new desktop environment that claimed before release that it would revolutionize the desktop environment, is released. Little late to post this but better late than never.

GNOME 3 is good. A very attractive desktop. Some awesome features but all at the same time, didn't click as much as it expected. Even Linux Trovalds moved from Gnome 3 to Xfce and made an official statement that he doesn't like Gnome 3. But to me, GNOME 3 is cool and very attractive to look at. Very sexy. But then, there are drawbacks too. The desktop doesn't hold anything,you can never have any icons on your desktop (which i hate because my desktop is almost always full of icons), no built-in support to tweak the theme (some work-around is possible though), and panel management is quite poor.

The developers team has maintained its ppa repository from the early development version. The same repository now contains the fully finished Gnome 3. If you had problems earlier installing Gnome 3 from this repository, then you can probably try this again because the earlier versions were unstable and possible that it may not have worked before.

To install GNOME 3 on Ubuntu 11.04, execute the following in Terminal.

[stextbox id="grey"]

sudo add-apt-repository ppa:gnome3-team/gnome3

sudo apt-get update

sudo apt-get dist-upgrade

sudo apt-get install gnome-shell

[/stextbox]

Here are some screenshots from my desktop -





GNOME 3 no matter how good it is, it is still kind of incomplete and I would like to stick with GNOME 2.

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Installed software's Product Key Finder - Windows

We will install lot of softwares in our system and there are chances of losing the serials of those softwares or we may need the serials of those softwares to use it in future. So we need to find the key and we should be able to have a copy of it for future reference. How can we do this?

Magical Jelly Bean's Keyfinder portable software helps us to find the key.

Download this software from here.

This software is compatible with all versions of windows. This is the best keyfinder available in the market. You can snapshot of the software below.

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Delete Undeletable files from PC using ANY FILE REMOVER

We would have come across a problem saying "Access denied", "Windows could not delete the file", "Windows was not able to delete the file. Some other process might be using" and etc.. stuffs lot of times while using windows. Even if we restart the system and try to delete the file, it may not get deleted. What is the solution for these kind of problems?

Techspace has a solution for this problem and it it given below.

• Download Any File Remover software from here.

• Browse and select the file which u want to delete.

• Click on remove and your file will be deleted easily.

Isn't this a nice software and beautiful trick? Subscribe for our feeds and mails and like us on facebook.

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Yet another Projector phone - Micromax X40

When the big brothers of mobile industry stays away from projector phones, here comes Micromax's new projector phone Micromax X40. After Intex, Spice and G'Five, Micromax debuts its first projector phone. X40 has more features than just the projector. It comes with support to read multiple office format documents like Word, Excel, Powerpoint and even PDF.



Phone features -

- Dual SIM Capability

- a QVGA 2.4" screen 240 x 320 pixels with 262k colors.

- 2 MP camera with resolution 1600 x 1200 pixels

- Bluetooth and USB connectivity

- WAP, GPRS, EDGE support

- FM Radio,  MP3 Player

- 80MB inbuilt memory expandable upto  4 GB

- Multi format document reader supporting Word, Excel, Powerpoint and PDF documents

- Preloaded applications like Facebook,  Nimbuzz, Opera Mini, Snaptu, Mundu Radio etc..

Price: Approximately Rs. 4800

The phone also comes with a portable Tripod and Transceiver. Price looks competitive to its specifications.

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Install GIMP 2.7.3 on Ubuntu using ppa

Earlier on Techspace we posted article on the release of 'The Gimp' 2.7.3. The 2.7.3 is a development version and not stable yet. The next stable version would be 2.8. But you can still try this development version, give feedback or report bugs to the developers of GIMP.

GIMP 2.7.3 is now available on PPA. You can install GIMP by executing the following instruction in your terminal -

[stextbox id="grey"]

sudo add-apt-repository ppa:matthaeus123/mrw-gimp-svn

sudo apt-get update

sudo apt-get install gimp

[/stextbox]

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GIMP development version 2.7.3 Released

'The GIMP' is one of the most popular and open source software available across different platforms to edit photos and create graphics. GIMP's previous stable version was GIMP 2.6 and then they dedicated the whole 2.7.x series to development versions which are unstable. Like GIMP has promised, GIMP released its latest development version 2.7.3 with a new single working window. So no more annoying floating windows. Being a development version, GIMP 2.7.3 comes with new features and most of them are still incomplete but still getting closer by day to achieve the stable v2.8.

Single working window

You can refer to this page for the full list of latest improvements since its previous version 2.7.2.

The version is incomplete and development is still going on. So you can always post your feedback or report bugs.

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