Google’s latest Gmail phone calling feature hit the ground running with over one million phone calls placed from Gmail in first 24 hours the feature was available, Google said Thursday via Twitter.The big question is how many will make Gmail calls in the following 24 hours after people have gotten over the novelty of placing calls via their e-mail inbox.
This isn’t terribly surprising that Google is has seen such day-one success considering Gmail has over 175 million monthly users, and the new feature is basically a combination of two popular services Gmail Voice Chat and Google Voice.
The feature, which is currently only available to U.S. Gmail users, allows users to place free “local” (within the United States and Canada) phone calls, as well as cheap international calls. Google says it’s subsidizing the “local” calls with the international calls’ rates, though these rates are still quite low. You can call a number of countries, including the United Kingdom, France, Germany, Argentina, China, and Japan, for as low as two cents per minute.
Google says that the local calls are free for now, and will be through at least the end of this year. However, things may change as the service catches on (though it looks like it already is).
The feature is not yet available to all U.S. Gmail users. It’s quite simple to use, however–at the top of your chat bar there is a “call phone” option. Simply click on it and a number pad will appear, on which you can dial your desired number and place a phone call. Naturally, a microphone is necessary in order for you to be able to communicate with the person on the other end of the line.
If you’re just a regular user, the recipient of your call will see your phone number as 760-705-8888. If you have Google Voice, however, the two services will integrate and the recipient of your call will see your Google Voice number.
At the moment a lot of people are still wondering why Google has decided to roll out this feature at all (to up the interest in Google Voice? Have a head-to-head battle with Skype?). But, while it’s free, we may as well take advantage of it–here’s to a million more calls over Gmail in the next 24 hours.
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Cisco is reportedly looking to buy Skype before the Internet phone provider goes public.
The blog TechCrunch posted over the weekend that Cisco made an offer for Skype before it completed its IPO process. The site attributed the unconfirmed information to “reliable sources.”
It would be a multibillion purchase as Skype is looking to raise $5 billion in its initial offer, according to TechCrunch.Cisco declined to comment. Skype was not immediately available for comment.
The acquisition would be key to Cisco’s thrust into the unified communications and collaboration, and consumer markets. It would bring to the company what is now a free and consumer friendly voice and video capability to augment the IP telephony and unified communications systems it now provides to corporate enterprises. Integrated with a device such as the Flip pocket videocamera — which would need an Internet access connection like the expected Wi-Fi capability — Cisco could offer a handheld voice/data/video device for the consumer and perhaps enterprise market.
Read more …
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How Do I Use fdupes?
Find duplicate files in /etc/ directory, enter:
root@K:/home/kartook# fdupes /etc
/etc/src-back
/etc/src-orgi
How Do I Delete Unwanted Files?
You can force fdupes to prompt you for files to preserve, deleting all others (use this with care otherwise you may loss data):
root@K:/home/kartook# fdupes -d /etc
[1] /etc/src-back
[2] /etc/src-orgi
Set 1 of 1, preserve files [1 - 2, all]: 1
[+] /etc/src-back
[-] /etc/src-orgi
How Do Recursively Search Directory?
You can recursively search every directory given follow subdirectories encountered within the -r option, enter:
root@K:/home/kartook# fdupes -r /dir1
How Do I Find Dupes In Two Directories?
Type the command as follows:
root@K:/home/kartook# fdupes /dir1 /dir2
How Do I See Size Of Duplicate Files?
Type the following command with the -S option:
root@K:/home/kartook# fdupes -S /etc
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This tutorial assumes no previous knowledge of scripting or programming, but progresses rapidly toward an intermediate/advanced level of instruction . . . all the while sneaking in little nuggets of UNIX® wisdom and lore. It serves as a textbook, a manual for self-study, and a reference and source of knowledge on shell scripting techniques. The exercises and heavily-commented examples invite active reader participation, under the premise that the only way to really learn scripting is to write scripts.
Online Book
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Many organizations are drawn to Internet telephony’s promise of cost savings, and its ability to move data, images, and voice traffic over the same connection. Asterisk, an open source system than runs on Linux, offers the best option. This guide covers installing, configuring, and integrating Asterisk with existing phone systems, without the need for additional hardware.
It may be a while before Internet telephony with VoIP (Voice over Internet Protocol) reaches critical mass, but there’s already tremendous movement in that direction. A lot of organizations are not only attracted to VoIP’s promise of cost savings, but its ability to move data, images, and voice traffic over the same connection. Think of it: a single Internet phone call can take information sharing to a whole new level.
That’s why many IT administrators and developers are actively looking to set up VoIP-based private telephone switching systems within the enterprise. The efficiency that network users can reach with it is almost mind-boggling. And cheap, if the system is built with open source software like Asterisk. There are commercial VoIP options out there, but many are expensive systems running old, complicated code on obsolete hardware. Asterisk runs on Linux and can interoperate with almost all standards-based telephony equipment. And you can program it to your liking.
Asterisk’s flexibility comes at a price, however: it’s not a simple system to learn, and the documentation is lacking. Asterisk: The Future of Telephony solves that problem by offering a complete roadmap for installing, configuring, and integrating Asterisk with existing phone systems. Our guide walks you through a basic dial plan step by step, and gives you enough working knowledge to set up a simple but complete system.
What you end up with is largely up to you. Asterisk embraces the concept of standards-compliance, but also gives you freedom to choose how to implement your system. Asterisk: The Future of Telephony outlines all the options, and shows you how to set up voicemail services, call conferencing, interactive voice response, call waiting, caller ID, and more. You’ll also learn how Asterisk merges voice and data traffic seamlessly across disparate networks. And you won’t need additional hardware. For interconnection with digital and analog telephone equipment, Asterisk supports a number of hardware devices.
Download
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What is Linux From Scratch?
Linux From Scratch (LFS) is a project that provides you with step-by-step instructions for building your own customized Linux system entirely from source.
Linux From Scratch isn’t a distribution in the traditional sense of the word, but rather a book containing a set of instructions for building a base Linux system from source code.
Why would I want an LFS system?
Many wonder why they should go through the hassle of building a Linux system from scratch when they could just download an existing Linux distribution. However, there are several benefits of building LFS. Consider the following:
LFS teaches people how a Linux system works internally
Building LFS teaches you about all that makes Linux tick, how things work together and depend on each other. And most importantly, how to customize it to your own tastes and needs.
Building LFS produces a very compact Linux system
When you install a regular distribution, you often end up installing a lot of programs that you would probably never use. They’re just sitting there taking up (precious) disk space. It’s not hard to get an LFS system installed under 100 MB. Does that still sound like a lot? A few of us have been working on creating a very small embedded LFS system. We installed a system that was just enough to run the Apache web server; total disk space usage was approximately 8 MB. With further stripping, that can be brought down to 5 MB or less. Try that with a regular distribution.
LFS is extremely flexible
Building LFS could be compared to a finished house. LFS will give you the skeleton of a house, but it’s up to you to install plumbing, electrical outlets, kitchen, bath, wallpaper, etc. You have the ability to turn it into whatever type of system you need it to be, customized completely for you.
LFS offers you added security
You will compile the entire system from source, thus allowing you to audit everything, if you wish to do so, and apply all the security patches you want or need to apply. You don’t have to wait for someone else to provide a new binary package that (hopefully) fixes a security hole. Often, you never truly know whether a security hole is fixed or not unless you do it yourself.
What can I do with my LFS system?
A by-the-book LFS system is fairly minimal, but is designed to provide a strong base on which you can add any packages you want. See the BLFS project for a selection of commonly used packages.
What can I do with my LFS system?
A by-the-book LFS system is fairly minimal, but is designed to provide a strong base on which you can add any packages you want. See the BLFS project for a selection of commonly used packages.
The Linux From Scratch community is pleased to announce the release of LFS Version 6.4. This release includes numerous changes to LFS-6.3 (including update to Linux-2.6.27.4, GCC-4.3.2, Glibc-2.8) and security fixes. It also includes a large amount of editorial work on the explanatory material throughout the book, improving both the clarity and accuracy of the text.
Download From HERE
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TestDisk is a powerful free data recovery software! It was primarily designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software, certain types of viruses or human error (such as accidentally deleting a Partition Table). Partition table recovery using TestDisk is really easy.
TestDisk can
* Fix partition table, recover deleted partition
* Recover FAT32 boot sector from its backup
* Rebuild FAT12/FAT16/FAT32 boot sector
* Fix FAT tables
* Rebuild NTFS boot sector
* Recover NTFS boot sector from its backup
* Fix MFT using MFT mirror
* Locate ext2/ext3 Backup SuperBlock
* Undelete files from FAT, NTFS and ext2 filesystem
* Copy files from deleted FAT, NTFS and ext2/ext3 partitions.
TestDisk has features for both novices and experts. For those who know little or nothing about data recovery techniques, TestDisk can be used to collect detailed information about a non-booting drive which can then be sent to a tech for further analysis. Those more familiar with such procedures should find TestDisk a handy tool in performing onsite recovery.
TestDisk Step By Step
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How to test the JAve version on Ubuntu
kartook@K:~$
kartook@K:~$ java -version
java version “1.6.0_18″
OpenJDK Runtime Environment (IcedTea6 1.8) (6b18-1.8-0ubuntu1)
OpenJDK 64-Bit Server VM (build 14.0-b16, mixed mode)
kartook@K:~$
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A 90-year-old man said to his doctor, “I’ve never felt better. I have an 18-year old bride who is pregnant with my child. What do you think about that?”
The doctor considered his question for a minute and then said, “I have an elderly friend who is a hunter and never misses a season. One day when he was going out in a bit of a hurry, he accidentally picked up his umbrella instead of his gun. When he got to the Creek, he saw a rabbit sitting beside the stream. He raised his umbrella and went, ‘bang, bang’ and the rabbit fell dead. What do you think of that?”
The 90-year-old said, “I’d say somebody else killed that rabbit.”
The doctor replied,  “My point exactly.
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This is something every sysadmin knows, or shoul know, but maybe Desktop Linux users does not know.
Yes it is not too useful for Desktop users anyway but, in case you do not know and might need to enable or disable the loggin ability of some users here is how to.
First let’s see why we would like to do such a thing (blocking a user from loggin).
If you have a Linux System that works as email server, you do not need to give loggin permissions to all the users of the box, specially if you allow them to change their passwords using poppassd, as the normal user usually use weak passwords, and if this user has full access to the server, someone may gess his password and hack your Linux.
So for the users you want to be able to loggin in to the server with ssh or from the console use a line like this in the password file /etc/passwd
user:x:1000:1000::/home/user:/bin/bash
And for the ones you do not want to have access to the server use:
user2:x:1001:1001::/home/user2:/bin/false
Usually you only need to change the /bin/bash to /bin/false once the user is created by editing (as root) the /etc/passwd file.
That user will still be able to use the pop3 / imap / smtp.
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