ClamAV,,OpenSource Antivirus மற்றும் Antimalware மென்பொருள் தரநிலை அமைத்தல்

ClamAV இன் வெட்டும்விளிம்பு பாதுகாப்பு தொழில்நுட்பம் திறந்த மூல மாதிரி ஒரு வெற்றியாகும். ClamAV வைரஸ் இயந்திரம், ClamAV கோர் குழு மற்றும் ClamAV சமூகத்திற்கு தொடர்ந்து கண்டுபிடிப்புகள் கூடுதலாக 300,000 க்கும் மேற்பட்ட கையெழுத்துக்களை அதன் பெருகிவரும் வைரஸ் தரவுத்தள தினமும் கையெழுத்து மேம்படுத்தல்கள் வழங்கும்.

உயர் செயல்திறன் Antivirus பாதுகாப்பு
ClamAV திறந்த மூல வைரஸ் தடுப்பு முன்னணி வணிக வைரஸ் தீர்வுகளை ஒப்பிடும் போது தரம் மற்றும் பாதுகாப்பு வழங்குகிறது. Linux வேர்ல்டு 2007, பிணைய நுழைவாயில் விற்பனையாளர் Untangle நடத்திய நேரடி "ஃபைட் கிளப்" நிகழ்வு, பொருட்கள் சோதனை உள்ள அனைத்து 25 வைரஸ்கள் கண்டுபிடிக்க முடியும் பார்க்க ஒருவருக்கொருவர் எதிராக 10 தொழில்-முன்னணி வைரஸ் தீர்வுகளை உருவெடுத்தது. அனைத்து 25 வைரஸ்கள் பிடிக்க மூன்று வைரஸ் எதிர்ப்பு தயாரிப்புகளின் ஒரு - ClamAV 100 எதிர்கொண்டது வைரஸ்கள்% கண்டறியப்பட்டது.

திறந்த மூல கண்டுபிடிப்பு ஒரு வலுவான அறக்கட்டளை
ClamAV என்ற  ஓப்பன் சோர்ஸ் சமூகத்திற்கு அதன் தற்போதைய பொறுப்பு பிரதிபலிக்கிறது. Sourcefire திறந்த மூல பாதுகாப்பு சமூகத்தின் மதிப்புகளை பின்பற்றுவதில் போது ஒரு வணிக நிறுவனம் கணிசமான வளங்கள் திட்டம் ஒன்றி கலப்பதற்கும் இரண்டு உலகங்கள் சிறந்த வழங்குகிறது, ஒரு ஓப்பன் சோர்ஸ் (GPL) தீர்வாக ClamAV உருவாகிறது மற்றும் வழங்குகிறது.

ClamAV எஞ்சின்
வெறுப்பு காண்பிக்கும் வகையில் சீற்றொலி உண்டாக்கு மற்றும் ClamAV ஒன்றாக பாதுகாப்பு துறை மிக பரவலாக ஏற்றுக்கொள்ளப்பட்ட திறந்த மூல திட்டங்கள் இரண்டு கொண்டுவருகிறது. தீம்பொருள் மற்ற வடிவங்கள் வைரஸ்கள், ட்ரோஜன்கள், ஸ்பைவேர் இருந்து, - ClamAV அச்சுறுத்தல்கள் பரந்த இருந்து தொழில், முக்கிய பாதுகாப்பு வழங்க Sourcefire திறன் மேம்படும். ClamAV கூட எதிர்ப்பு ஃபிஷிங் தொழில்நுட்பம் கொண்டுள்ளது.

ஒரு நாள் பல மடங்கு மேம்படுத்தப்பட்ட ClamAV கையொப்பம் தரவுத்தளம், தற்போது கண்டறிதல் மிக அதிக விகிதத்தில் புதிய பதிப்புகள் கண்டறிய முடியும் என்று பொதுவான கையெழுத்து உட்பட 300,000 கையெழுத்துக்களை, கொண்டுள்ளது.

How to install Samba Server on ubuntu

samba is a good choice for sharing files between Ubuntu and Windows computers.

To install samba server,you can just run following command in terminal:

sudo apt-get install samba smbfs

After installed samba,we need to configure it to make it accessible by following command

sudo gedit /etc/samba/smb.conf

At following screen,change and make it look like the marked section

Now create a samba user by following command

sudo smbpasswd -a username

And add that username to the smbusers file.

sudo gedit /etc/samba/smbusers

Add in the following line, substituting the username with the one you want to give access to

ubuntuusername = “samba username”

Use the name you created in “sudo smbpasswd -a username” instead samba username

The Indian Rupee sign

The Indian Rupee Sign (₹) has been supported in the Ubuntu Font Family since version 0.69. This was included in the Ubuntu 10.10 operating system release. Ubuntu 10.10 is the first operating system to ship with out-of-the-box support for displaying the Indian Rupee Sign, and this happened on 10 October 2010 (2010-10-10).

To display the sign, you must have a font—such as the Ubuntu Font Family—with support for the character. For K/Ubuntu 10.10 users, this is automatic.

The sign can be inserted in your own documents using copy-and-paste from another location, or using the Unicode-entry method:

• Ubuntu 10.10: <Ctrl-Shift-U> 2 0 b 9, then <Enter>
• MS Windows: Press-and-hold <Alt> 2 0 b 9, then release <Alt>
• Kubuntu 10.10: Copy-and-paste '₹'
• HTML: insert "&#x20b9;"

 ₹

The designer

The original designer of the Indian Rupee Sign is Udaya Kumar who was awarded the prize on 15 July 2010 (2010-07-15) by the Indian Government. The codepoint at U+20B9 was assigned by the Unicode consortium on 11 August 2010 (2010-08-11).

The glyph for the Ubuntu Font Family was contributed by Rodrigo Rivas on 27 September 2010 (2010-09-27). Version 0.69 of the Ubuntu Font Family was uploaded on 5 October 2010 (2010-10-05). This hopefully demonstrates the advantage and speed possible when using open development.

Getting to Know Linux: Installing From Command Line

For users new to the Linux operating system, nothing beats installing applications with the graphical Add/Remove Software applications found in the main menu of your desktop. But sometimes that ever-so-user-friendly GUI isn’t an option. Once such instance would be a headless server with no graphical desktop. Or maybe you’ve found a particular applicaiton that is only offered as a source package. For these you are going to have to know your way around command line installation.

In this article I am going to show you the basics of some of the more popular package management systems as well as the basics of installing via source. I will not spend too much time on each (otherwise this article could grow rather overwhelming). By the end of this article you should know how to install, querey, and remove applications with the more popular tools.

Source

Let’s start from the source. Generally when you download a package for installation that ends with tgz, gz, bz2, or *zip this will be a source installation. For these installations you are going to take advantage of some powerful compilation tools. But before you can start the compilation you have to unpack the source directory. If your file ends with a “bz2″ you will first have to ucompress the file will the command bunzip2 APPLICATION.tar.bz2. This will result in a new file like APPLICATION.tar. Tar is an archive system that rolls up directories into a file. To unpack the directory you would issue a command similar to tar xvf APPLICATION.tar. Unpacking the directory would then result in a directory (in our example) APPLICATION.

If the downloaded file ended in tgz or gz then you have a compressed archive and you simply have to add the “z” switch to the tar command to both uncompress and unpack the archive. This command would look like tar xvfz APPLICATION.tgz, which would result in the directory APPLICATION.

Once you have your directory unpacked you need to change into that directory (with the command cd APPLICATION). Once inside this directory issue the ls command. You will most likely see either a README file or an INSTALL file. Open those up and see if there are any special instructions for installation. If there are no special instructions then the standard compilation steps will most likely work. Here’s how this works:

• su to the root user
• From within the APPLICATION directory issue the command ./configure. This will generate a make file for the compilation.
• Issue the command make.
• Issue the command make install

That’s it. If all went as planned, the application should be installed.

RPM

RPM is the Red Hat Package Manager. Installing via RPM is actually quite simple. Here’s how this works. Once you have downloaded the rpm file you want to install, open up a terminal window and issue the following commands:

• su (you will be prompted to enter the root password)
• rpm -ivh filename.rpm (where filename is the actual name of the file you downloaded)

That’s it. If all went well your package should now be installed.

If you want to make sure your package was installed you can issue the command rpm -q filename and you should see the name of the package and the version that is installed.

If you want to remove that package you just installed (or another package) issue the command:

rpm -e filename

and the package will disappear.

APT-GET

This is one of the best installation systems available. With apt-get you do not have to download a package, you just have to know the name. Here’s how apt-get works (I am going to assume Ubuntu is the distribution, so you’ll make use of sudo). Open up a terminal window and issue the following:

sudo apt-get install package_name

to install the needed package.

To remove a package with apt-get you would issue the command:

sudo apt-get remove package_name

to remove the package from your system.

URPMI

The urpmi system is from the Mandriva distribution and is similar to apt-get. To install a package with urpmi you would open up a terminal window, become the root user, and issue the following command:

urpmi package_name

to install the needed package.

To remove a package with this system you would issue the command:

urpme package_name

and the package will be removed.

DPKG

This is the Debian installer and is as easy to use as any other. To use dpkg you will open up a terminal window and issue the following command to install a package:

sudo dpkg -i package_name

to install a package.

To remove a package issue the command:

sudo dpkg -r package_name

and the package will be gone.

Final Thoughts

There you go. A very basic description of package management with the more popular tools. Yes, there is much, much more to them than what you have just read, but this will give you enough of a foundation to get you going

Bitdefender USB Immunizer

Bitdefender USB Immunizer is a free and easy to use tool that helps make sure you transfer the files, not the viruses. It disables autorun-related threats before they access the computer. Once installed, it constantly watches for newly inserted USB storage devices and immunizes them on the fly.

Download Ubuntu GNOME Remix 12.10

Ubuntu GNOME Remix 12.10 has been released!

Ubuntu GNOME Remix, a Linux distribution which aims to become an official Ubuntu flavour, uses GNOME Shell as the default "shell" and tries to provide a "mostly pure GNOME desktop experience built from the Ubuntu repositories".

GNOME Shell by default

Ubuntu GNOME Remix 12.10 uses GNOME Shell 3.6.1 by default, along with most of the GNOME 3.6 application stack, so it basically has the features you've seen in our GNOME 3.6 post.

Here's the new GNOME Shell 3.6 message tray:

Since GDM 3.6.1 is included as well, you'll also get the cool new GNOME 3.6 lock screen:

Here are a few more GNOME Shell screenshots:

Default packages

As you would expect, Ubuntu GNOME Remix 12.10 tries to offer most of the GNOME 3.6 applications: Web (Epiphany) 3.6, Evolution 3.6, Gedit 3.6, etc.

But there are some packages which aren't updated to version 3.6: Aisleriot, Nautilus, System Settings, and Totem:

Nautilus 3.4.2

That's because Ubuntu itself uses older versions of these apps, so Ubuntu GNOME Remix is stuck with them as well. But you can update Nautilus or Totem to version 3.6 by using the GNOME3 Team PPA.

There are also some GNOME applications which aren't included by default, like Boxes or GNOME Documents. And you won't find any of the Ubuntu-specific applications as well: Ubuntu One or Ubuntu Software Center aren't included in Ubuntu GNOME Remix since they aren't official GNOME apps.

Instead of Ubuntu Software Center, it uses "Software" (gnome-packagekit), which includes its own update manager:

Applications included by default: Web (Epiphany) 3.6.0, Nauilus 3.4.2, GNOME Tweak Tool, Abiword and Gnumeric, Evolution 3.6.0, Cheese, Gwibber, Rhythmbox 2.97, GNOME games, Shotwell, Simple Scan, Transmission, GNOME Packagekit.

The classic (fallback) session is included by default as well, but is only used if your hardware can't run GNOME Shell.

Artwork

As you would expect, Ubuntu GNOME Remix 12.10 uses the default GNOME 3 artwork: Adwaita for the GTK theme and the GNOME icon theme, along with the official GNOME 3.6 wallpaper.

But, at least compared to the beta, there is now a Plymouth theme as well as an Ubiquity installer slideshow:

The slideshow uses images for all the slides except the last one, which is common with the other Ubuntu flavours (which tells the user where he can get support). That's probably because the work was done by a small team and there wasn't enough time to get everything ready, this being the first Ubuntu GNOME release.


GNOME Shell was the missing piece and now, with 12.10, Ubuntu has all the popular DEs covered: from Xfce, KDE and LXDE to GNOME Shell or Unity (although these last 2 are not DEs but "shells"), even though Ubuntu GNOME Remix is not official yet. But let's hope it will become an official Ubuntu flavour with 13.04 Raring Ringtail.

Download Ubuntu GNOME Remix 12.10

Download Ubuntu GNOME Remix 12.10 - and remember to read the official release notes!

Ubuntu extra Repositories

Extra Repositories / Universe / Multiverse

In addition to the officially supported package repositories available for Ubuntu, there exist additional community-maintained repositories which add thousands more potential packages for installation. Two of the most popular are the Universe and Multiverse repositories. These repositories are not officially supported by Ubuntu, but because they are maintained by the community they generally provide packages which are safe for use with your Ubuntu computer.

	Packages in the Multiverse repository often have licensing issues that prevent them from being distributed with a free operating system, and they may be illegal in your locality.

	Be advised that neither the Universe or Multiverse repositories contain officially supported packages. In particular, there may not be security updates for these packages.

Many other package sources are available, sometimes even offering only one package, as in the case of package sources provided by the developer of a single application. You should always be very careful and cautious when using non-standard package sources, however. Research the source and packages carefully before performing any installation, as some package sources and their packages could render your system unstable or non-functional in some respects.

By default, the Universe and Multiverse repositories are enabled but if you would like to disable them edit /etc/apt/sources.list and comment the following lines:

sudo gedit /etc/apt/sources.list

deb http://archive.ubuntu.com/ubuntu hardy universe multiverse  deb-src http://archive.ubuntu.com/ubuntu hardy universe multiverse    deb http://us.archive.ubuntu.com/ubuntu/ hardy universe  deb-src http://us.archive.ubuntu.com/ubuntu/ hardy universe  deb http://us.archive.ubuntu.com/ubuntu/ hardy-updates universe  deb-src http://us.archive.ubuntu.com/ubuntu/ hardy-updates universe    deb http://us.archive.ubuntu.com/ubuntu/ hardy multiverse  deb-src http://us.archive.ubuntu.com/ubuntu/ hardy multiverse  deb http://us.archive.ubuntu.com/ubuntu/ hardy-updates multiverse  deb-src http://us.archive.ubuntu.com/ubuntu/ hardy-updates multiverse    deb http://security.ubuntu.com/ubuntu hardy-security universe  deb-src http://security.ubuntu.com/ubuntu hardy-security universe  deb http://security.ubuntu.com/ubuntu hardy-security multiverse  deb-src http://security.ubuntu.com/ubuntu hardy-security multiverse  

References

Adding Repositories HOWTO (Ubuntu Wiki)