ServerComputing

Download and install vmware tools in Ubuntu linux

2014-11-28T12:49:00.002+05:30

A simple step by step tutorial to install VMware tools in Ubuntu linux server in command line. It works with all the version of Ubuntu servers including the Latest Ubuntu 14.10.
Follow the detailed guide here

Recover data after accidental format with 100% success rate

2014-11-05T21:05:00.004+05:30

Data recovery after accidental format. With 100% success rate..
Read more

Recover Deleted Data From Yosemite

2014-07-28T00:05:00.002+05:30

Lost or accidentaly deleted an important file or folder ?
Dont worry it is possible to revover pictures, videos, documents, pdf, audio mp3 files, emails or any other type of files? You can now recover deleted file from your all new mac OS X Yosmite 10.10 for free even it is deleted from trash.

Its common to delete files accidentaly and you may worry about recovering the lost file. There are many data revovery softwares which comes free and paid in the market (Internet). some ask for a payment, and some recover a part of the file and/or ask to upgrage to premium version with a payment, and some give us the exat file.

Improving the chance of Data Recovery.

It is always very important that, you should try to recover the accidentaly deleted data as soon as possible after deleting it. You shouldn't make much change in the hard disk or USB pendrive that means do not write/save more files, of changing the current folder structure, etc. The possibility of data revovery will decrease if you overwrite more file in the same Dard disk.

With this Reviewed Apps you can also recover deleted file from SD Card, USB drives, pendrives, and memory cards.

Free file recovery softwares for Mac OS X Yosemite 10.10.
#1. Data Recovery Wizard.
Its a completely free data recovery software for mac os x yosemite 10.10. You have to download the .dmg image from the link below

DOWNLOAD DATA RECOVERY WIZARD (Read above instructions for better recovery)

After installing the "Data recovery wizard"app, launch the program and in the first window you should select the file type to recover. If you accidentaly deleted a picture such as .JPG, .BMP, .PNG, etc from the desktop, you should select the "GRAPHICS" option only. So the software will not search for any other type of files and it will boost the recovery speed so quickly. Then click Continue.

Now Select the Disc you need to scan, You can now try to recover file from system HDD or from pendrive. And click Scan. Here in my case, my HDD is Unlitled 500GB TOSHIBA HDD

And now it will list all the available or recoverable files that deleted from your Macbook. You can select the files and select the destination folder to recover and save.

Thank you.

How to make a Bootable USB Installer of Yosemite 10.10

2014-07-27T00:34:00.000+05:30

I know you will be eager to try the newly released OS X Yosemite 10.10. If you are already download the Yosemite installer app from the App Store, then proceed to the bootable usb creation steps, otherwise download yosemite installer first.

After downloading the app, you will need the following.
1. A USB drive with minimum 8GB
2. A Mac running machine.
3. The downloaded OS X Yosemite 10.10 .app file (saved in the folder "/Applications/")

Now you are all set for making the bootable USB drive of OS X Yosemite.

Note: In this post, the USB storage name is "SANDISK" , and the Yosemite installer App file is reside in the folder as "/Applications/Install OS X Yosemite.app"

Step 1.
First Format the USB drive to "Mac OS Extended (Journaled)"
for this, Connect the USB drive to your existing Mac and goto "Disk Utility" and select the USB drive and under the "Erase" tab, you can format the drive.

Step 2.
Open the application "Terminal" and run the following command (Better copy and paste the command and edit the file path and USB drive path).

sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia --volume /Volumes/SANDISK --applicationpath /Applications/Install\ OS\ X\ Yosemite.app --nointeraction

This will make the USB drive a Yosemite bootable installer. You should change the USB drive name and the path of Yosemite installer app in your command. It may take 15 to 20 minutes depending on your USB data read/write speed. When the terminal says "Done" you are all done and ready to install and try the Mac OS X Yosemite 10.10.

Thanks for reading, and please leave your comments below. :D

How to exclude external hard drive in spotlight

2014-07-25T13:12:00.000+05:30

Here is the way to exclude your external hard disc or USB pen drive from Spotlight search listing. You can do it simply from Apple menu -> System preference -> Spotlight -> and select the Privacy tab and browse the Disc, External Hard disc or USB Pen drive and click OK.

Now Spotlight will omit the results from the selected or excluded Disc.

How to Exclude A Folder From Spotlight Search

2014-07-25T12:57:00.000+05:30

You can exclude or prevent folders and discs from being listed in spotlight searching. You can do it from "Apple menu" and then "System preference" and then "Spotlight" and then select "Privacy" tab and select/browse the folder you need to prevent from spotlight listing.

You can also select the particular file types like images, movies, emails, music, etc from there. Spotlight will omit the files and filders from the search results.

New Mac OS X Yosemite Beta Download

2014-07-24T23:12:00.000+05:30

The all new Apple Mac operating system "Yosemite" is available now in beta format publicly. Apple released this beta public version on 24th July 2014. All the people who joined in Yosemite Public Beta Program can sign in and download the beta version and experience the Yosemite effect.

Apple already released few developer preview of the same OS X Yosemite recently. The bublic beta users can experience the OS and send bugs/feedbacks to apple to improve the Yosemite.

To try Yosemite, advice not to install and test in your primary Mac machine, instead install in test environment or as a virtual machine.

VMware VCP and VCAP Exam at 50% Discount

2014-07-24T12:22:00.000+05:30

Get VMware certified at 50% discount from regular exam fee. All these discount will get only during the VMworld event. You will be eligible for this discount from 24-28 Aug 2014 (VMworld US) and 13-16 Oct 2014 (VMworld Europe). All VCP and VCAP exams are eligible for this discount.

Limited seats available, register at:
24-28 Aug 2014 http://www.pearsonvue.com/vmware/vmworld/
3-16 Oct 2014 http://www.pearsonvue.com/vmware/vmworld/emea/

VMware ESXi 6 Beta Download Link

2014-07-24T12:19:00.000+05:30

The vSphere 6.0.0 beta version released on 30 june 2014, and its available for all the users. You can download the new beta version of ESXi by joining the vSphere beta 2 program using the link below

By joining the program, you will be able to download the vSphere 6.0.0 beta image, product documentations and can get the serial numbers for the following

1. vSphere Enterprise plus
2. vCenter Standard
3. vCloud Suite Enterprise

So lets set up our lab for testing and exploring the new vSphere 6.0.0 beta.

https://communities.vmware.com/community/vmtn/vsphere-beta

How to Make Mevericks Bootable USB For Installing OS X Mavericks

2014-01-13T18:12:00.001+05:30

FREQUENTLY ASKED QUESTIONS (Mac)
Q: How to make a bootable USB flash drive to install OSX Mevericks?

System and Hardware Requirements

8gb or higher usb flash drive. (Mavericks Installer is a 5.31GB file)
Install OS X Mevericks.app downloaded from AppStore (after downloading, get it from /Application directory)
An Apple Machine running OS X 10.7 or higher

Steps to make bootable Mevericks Installer

Plug the USB to a mac machine
Open "Disk utility" and Erase the USB with "Mac OS Extended (Journaled)" ((In this case, USB Drive name is /Volumes/MANU), you can name your USB drive in erasing step)
Open "Terminal" and type below command to write the Mavericks installer packages to USB and make bootable.

Syntax:

If your downloaded OS X mevericks Installer file saved in /Applications/OS X Mevericks.app
And your USB drive path is /Volumes/MY8GB/ , below command will work for you perfecly

sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/MY8GB --applicationpath /Applications/Install\ OS\ X\ Mavericks.app --nointeraction

When promted, type your user password for executing sudo command.

Install Java SE Development Kit(JDK) on CentOS6

2012-09-23T14:35:00.000+05:30

FREQUENTLY ASKED QUESTIONS (Linux)
Q: How to install java SE Development Kit (JDK) on CentOS6 ?

Go to Oracle and download JDK for your 64bit or 32bit CentOS Linux
for 32bit CentOS: Download "Linux x86 - RPM Installer"
for 64bit CentOS: Download "Linux x64 - RPM Installer"

After downloading...
[root@server ~]# rpm -ivh jdk-7-linux-i586.rpm
OR
[root@server ~]# rpm -ivh jdk-7-linux-x64.rpm

Preparing... ########################################### [100%]
1:jdk ########################################### [100%]
Unpacking JAR files...
rt.jar...
jsse.jar...
charsets.jar...
tools.jar...
localedata.jar...

Remove shadow desktop icons XP

2012-09-23T12:43:00.000+05:30

FREQUENTLY ASKED QUESTIONS (Linux)
Q: How to remove shadow on desktop icons on Windows XP?

Step by step instructions
Step1: Go to "My computer Properties"
Step2: "Advanced"

Step3: Performance "Settings"
Step4: And On Visual effects tab, Check "Use drop shadows for icon labels on the desktop"

Install Remote Desktop Client on CentOS6

2012-09-23T12:16:00.000+05:30

FREQUENTLY ASKED QUESTIONS (Linux)
Q: How to install remote desktop CentOS?

Installing Windows RDP remote desktop client on CentOS Linux to connect to a Windows running machines with RDP protocol.
Applicable to : CentOS6, CentOS5, CentOS4, etc.
Install remote desktop client for CentOS from YUM repository
[root@server ~]# yum -y install rdesktop

After installing rdesktop on CentOS (run commands on X window)
Command usage:
# rdesktop [Options if any] <ipaddress>
Command example:
[root@server ~]# rdesktop 192.168.10.50
[root@server ~]# rdesktop -g 900x750 -u James 192.168.10.50

Connect RDP server with a different port number (eg: port 2500)
[root@server ~]# rdesktop -u James 192.168.10.50:2500

Available and usefull Options
-g Desktop geometry (Window resolution)
-u Username
-p Password
-f Full screen mode

Exit from Putty full screen

2012-09-22T18:34:00.000+05:30

FREQUENTLY ASKED QUESTIONS (Linux)
Q: How to exit from putty full screen mode?

At any time to properly exit from putty full screen mode follow the simple steps below..
Step1: On putty settings -OR- Right click on Putty from task bar and select "Change Settings.."

Step2: Go to "Window" -> "Behaviour" and check the option "Full Screen on Alt-Enter"
Done, Now you can toggle full screen and normal window mode with pressing Alt+Enter (Left Alt key)

CentOS6 FTP Client: ftp command not found

2012-09-22T16:19:00.000+05:30

FREQUENTLY ASKED QUESTIONS (Linux)
Q: How to install ftp client on CentOS6?

Without a ftp client package, you cannot access and login to any FTP server with "ftp" command. You should install ftp client packages.

Without FTP client packages
[root@server ~]# ftp 192.168.10.50
-bash: ftp: command not found

Install FTP client on CentOS
[root@server ~]# yum -y install ftp
The above command will install the ftp client package on your CentOS server. If you use a proxy server for internet access, enable yum commands with proxy server.

Enable Do Not Track In Chrome

2012-09-22T12:29:00.000+05:30

FREQUENTLY ASKED QUESTIONS (Internet)
Q: How to enable "Do not track" on Google Chrome browser?

Opt out your personalized online Ads preferences via Cookies.
All your activities on web is collected for analyzing for interests and the data is used for online advertising purposes. And you will get advertisements on websites based on your interests. By enabling "Do Not Track on your browsers" the advertising network cannot track your personnel data like searched keywords, interests and more that used for your Ads preferense.

How Do Not Track works
Do not track disable the personalized ads based on your interest collected by cookies.

How to Opt out Do Not track on Chrome browser
Go to Chrome Web Store and search for "Do not track" and you can find many Chrome extensions (plugins) to add to Chrome and enable "Do Not Track" function.

Or you can use Google's own "Do Not Track" extension by clicking here

And after selecting your favorite extension click on "Add to Chrome". And you are now enabled "Do Not track" on your Google chrome browser.

Aircel MPLS VPN Service

2012-09-21T17:06:00.001+05:30

Aircel started MPLS (Multi protocol Label switching) based global VPS service for business. Aircel MPLS VPN offers high performance, flexible and scalable secure private VPN networks for business needs. Aircel MPLS VPN is available outside india globaly. With more than 400 PoPs in India and more than 190 locations worldwide.

Available Aircel MPLS VPN services

Layer3 MPLS VPN
Layer2 MPLS VPN
IP Multicast VPN
Hybrid MPLS VPN

Aircel MPLS VPN Features and Benefits

More than 400 PoPs in India and more than 190 locations worldwide
Secure, scalable and seamless connectivity
Application prioritization with Class of Service (CoS) feature
Inter CoS bursting
Connectivity from more than 400 PoPs in strategic business locations
Access agnostic options to choose from (Fiber, Wireless over P2P radio/WIMAX)
Quick deployment and fast rollout
Reduce cost and complexity associated with a private network
High availability and performance backed by competitive SLAs on Latency, Packet Delivery, Jitter and Uptime
24x7 Helpdesk

Install VNC Viewer/Client on Fedora and CentOS Linux

2012-09-21T16:01:00.000+05:30

FREQUENTLY ASKED QUESTIONS (Linux)
Q: How to install TigerVNC client or viewer on linux?

This post covers installing a VNC client or VNC viewer on your linux machine. You can install the VNC viewer packages from the yum repository on RPM based linux distributions. With this VNC client you can access to Linux and Windows running VNC servers remotely. This is a cross platform application.
Applicable to: RHEL, Redhat, CentOS, Redhat, etc.

Install VNC viewer from YUM
(If your linux is not connected to internet directly, enable yum commands through a proxy server
[root@server ~]# yum -y install tigervnc

After installing Go to Applications=>Internet=>TigerVNC Viewer

Send Message to Another User Linux

2012-09-20T19:11:00.000+05:30

FREQUENTLY ASKED QUESTIONS (Linux)
Q: How to send messages to terminal users on linux command line?

Use "write" command to send messages to Linux users who logged in using terminal. It will helpful if more users are logged in to a same Linux server via terminal and they all can communicate Linux users with text messages. You can send message to a Linux user in a special tty if one user is logged with more sessions.

Command usage:
# write <recipient's username>
or
# write <recipient's username> <tty name>
<type your message to the user> and press enter

Example:
[root@server ~]# write admin
Hey Admin, How are you ?

Tip: press Ctrl+z to stop and exit

How the Recipient(admin) receives the message
[admin@server ~]#

Message from root@server on pts/1 at 18:38 ...
Hey Admin, How are you?

Send message to a user in a different tty or pts
[root@server ~]# write admin pts/2
(message will send to admin logged in pts/2 only)
Tip: Use "w" command to identify the pts/tty of a logged in user

Where is Trash directory located on Linux

2012-09-19T14:40:00.000+05:30

FREQUENTLY ASKED QUESTIONS (Linux)
Q: Where is Trash folder location or path in linux?

You can find the Trash (Recycle Bin) directory under the ".local/share/Trash/" location. And there will be two directories named "info" and "files", where "info" includes a "filename.trashinfo" file that includes the original file location and deleted date and time of all trashed files. "files" directory includes the full and original deleted files.
You can read and modify the trashed items/files also. And you can empty trash or delete files from trash using normal "rm" command in command line.
Please Note: This Trash directory only created when you delete a file to trash folder first.

Accessing Trash Directory Command line
Applicable to: RHEL, Redhat, CentOS, Ubuntu, Debian, Fedora, etc.
[root@server ~]# cd ~/.local/share/Trash/
[root@server Trash]# ls
files info

[root@server Trash]# ls files/
video.avi
[root@server Trash]# ls info/
video.avi.trashinfo

[root@server Trash]# cat info/video.avi.trashinfo

[Trash Info]
Path=/home/admin/Videos/video.avi
DeletionDate=2012-09-10T13:58:13

Select Memory Card Class for your HD Camera

2012-09-15T12:40:00.001+05:30

The class rating represents the write and read speeds of a memory card. You can check your card's class rating by checking the class symbol with class number inside.
You should check the class when you buy a memory card especially for a HD camcorder, or any HD(720p) or Full-HD(1080p) video recording devices or even a HD video capable smartphone. If you use a low class (say Class2) memory card on a Full-HD camcorder, the camcorder cannot write the HD data at its capturing speed.

This is a Class 10 Transcent's 16gb memory card in the picture--------->

Minimum and Maximum write speeds
Class2 : 2-8MB/sec Ideal for SD Video recording
Class4 : 4-15MB/sec Ideal for HD and Full-HD Video recording

Class6 : 6-20MB/sec Ideal for HD and Full-HD Video recording
Class10 : 10-30MB/sec Ideal for Full-HD Video recording and HD still consecutive recording

"telnet" is not recognized as internal or external command, operable program or batch file

2012-09-14T12:58:00.000+05:30

In latest windows operating systems like Windows 2008 Server, 2012 Server, Windows 8, Windows 7, etc "telnet" is not preinstalled with windows, so you need to install the telnet client manually.

Installing Telnet Client in Windows Server 2008 R2, 2012 server.
"Start" -> "Administrative Tools" -> "Server Manager" -> "Features" -> and click "Add Features" -> select "Telnet client" and click "Next" -> "Install".

Installing Telnet Client on Windows using commands
The below command will install and enable telnet client in windows operating systems.
C:\Users\Administrator>pkgmgr /iu:"TelnetClient"

Telnet client: Windows 2008 R2, 2012 Server, Windows 7, Windows 8, Vista

2012-09-13T15:57:00.001+05:30

FREQUENTLY ASKED QUESTIONS (Windows)
Q: How to enable telnet command in Windows 2008 R2 server?

C:\Users\Administrator>telnet
"telnet" is not recognized as internal or external command,
operable program or batch file.
By default telnet is not preinstalled in Windows 2008 R2, Windows 2012 Server, Windows 7, Windows 8 and Windows Vista. You can install the telnet client with the command below

Applies to: Windows7, Windows Vista, Windows XP, Windows 2003, Windows 2008 R2 Server, Windows 8.
Install Telnet client using command line
C:\Users\Administrator>pkgmgr /iu:"TelnetClient"
Done, now wait for few seconds and try with "telnet" commands....

Install Teamviewer 7 on Ubuntu 12.04 and Debian

2012-09-13T13:19:00.000+05:30

FREQUENTLY ASKED QUESTIONS (Ubuntu)
Q. How to install Teamviewer 7 on Ubuntu 12.04 ?

Teamviewer is a free* and secure remote desktop sharing cross platform application. Teamviewer works with Mac OS, Linux, Windows, etc.
Get Teamviewer 7 for Ubuntu/Debian operating systems

Or download it from command line
user@ubuntu:~$ wget http://www.teamviewer.com/download/teamviewer_linux.deb
user@ubuntu:~$ wget http://www.teamviewer.com/download/teamviewer_linux_x64.deb

Install Teamviewer 7

user@ubuntu:~$ sudo dpkg -i teamviewer_linux.deb

user@ubuntu:~$ sudo dpkg -i teamviewer_linux_x64.deb

*Teamviewer is free for personnel use only.

Changing User ID and Group ID In Linux

2012-09-13T12:43:00.001+05:30

FREQUENTLY ASKED QUESTIONS (Linux)
Q: How do i change the User IS and Group ID in Linux operating systems?

Every users and group has a unique ID (UID and GID) in linux operating system. You can change the default user ID of a user or a group ID of a group in Linux operating system. Use "usermod" and "groupmod" commands to modify the ID value of users/groups.

Changing user ID for the user account
# usermod -u <new user id> <username>
Example:
[root@server ~]# usermod -u 600 james

Changing the group ID of a group
# groupmod -g <new group id> <group name>
Example:
[root@server ~]# groupmod -g 700 accounts