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  • Vinagre remote desktop connection for Linux

    Do you administer Linux machines? Or do you just need the ability to remotely connect to your Linux machines from other Linux machines? If so, are you looking for an easy solution for this task? There is one, if you are a fan of the GNOME desktop.

    Vinagre is a remote desktop tool with plenty of features and ease of use for just about any level of user. It’s enjoying release 2.30.1 so it’s quite mature. In this article I will show you how to install and use the default GNOME remote desktop tool.

    Features

    Vinagre offers enough features to help make it stand out among other rdp clients:

    • Tabbed interface allows you to connect to multiple desktops in one window.
    • Favorites keep you from having to enter those connection details every time you need to connect.
    • Track your recent connections.
    • Auto-discovery of VNC servers.
    • No need for passwords (if you so choose).

    Now let’s get to the installation and usage.

    Installation

    Most likely, if you are using a newer GNOME desktop, Vinagre is already installed. If you click Applications > Internet and you see Remote Desktop Viewer listed, it’s there. If not, follow these instructions:

    1. Oopen up your Add/Remove Software tool.
    2. Search for “vinagre” (no quotes).
    3. Mark vinagre for installation.
    4. Click Apply to install.

    That’s it! Vinagre is now installed.

    Usage

    Figure 1

    In order to use Vinagre you have to have at least two workstations. Let’s take a look at connection to a Ubuntu desktop from a Fedora desktop. The first thing you have to do is allow the remote connections on the target machine. From the target machine (in this case Ubuntu 10.04) click System > Preferences > Remote Desktop which will open up the Vinagre preferences window (see Figure 1).

    What you need to do is to first click the Allow other users to view your desktop. This will enable the server for incoming connections. The other options are specific to your needs and reflect security and quick access to the Vinagre application.

    Once you have taken care of the target configuration, let’s go to the primary location – the Fedora desktop.

    From Fedora click Applications > Internet > Remote Desktop Viewer to open up the main Vinagre window. Once there click on the Connect button to open up the connection dialogue  (see Figure 2). If you click the Find button any machine with a VNC server on your network will show up, which you can then select using the drop-down. If not, just enter the IP address of the machine and click Find. Once you’ve done that you can then control some of the graphic aspects of the connection (to spare bandwidth if necessary). Once you have set up your connection click Connect and Vinagre will open up a connection to the target machine. You should now be able to take control of said target (see Figure 3).

    Figure 3

    As you can see (in the remote machine) you get an alert that another user has connected to your machine.

    Compiz issue

    If you use Compiz on your target machine you might find your primary machine unable to control the target. If that’s the case there is a work around. To get around this problem you have to open up gconf-editor, navigate to desktop > gnome > applications > remote access, and then click the checkbox for disable_xdamage. Once you have done this close gconf-editor and your source machine should now be able to take control of the target.

    Final thoughts

    Vinagre is one of the easiest to use remote desktop tools I have come across. With the inclusion of tabs and favorites, it makes it a strong candidate to take over as your favorite remote tool for the Linux environment.


    © Jack Wallen for gHacks technology news, Software And Internet Tips For The Geek In You, 2010. | Permalink | Add to del.icio.us, digg, facebook, reddit, twitter
    Post tags: rdp, remote management, remote-desktop, vnc

  • OpenDNS FamilyShield Blocks 18+ Contents Automatically

    Users of the free DNS service OpenDNS are already familiar with additional blocking options that an OpenDNS account offers. It is for instance possible to configure web filters to block contents such as adult themes, pornography, proxies and anonymizers or gambling.

    The web filter is fully customizable to block only the selected contents in the network the DNS servers are used. Those filtering customizations are on the other hand only available for free or paid OpenDNS account owners and not for users who have simply switched their DNS servers to the provider.

    OpenDNS FamilyShield has been designed for families who want a ready to run solution. The DNS servers come with family friendly filtering activated so that account creation and configuration is not necessary.

    Filters to block adult contents, proxies and anonymizers are automatically active after changing the DNS servers to the FamilyShield IPs.

    DNS servers have an advantage over parental control software as they can be configured on a computer system or router. All devices that use the router to connect to the Internet are benefiting from the web filtering and additional security. Parental control software on the other hand can only be installed on supported computer systems and not devices such as Microsoft’s Xbox 360, Sony’s Playstation 3, Nintendo’s Wii or 3Ds as they are usually operating system specific.

    The DNS server IPs that need to be used are 208.67.222.123 and 208.67.220.123. These need to be entered into the router configuration or computer configuration, depending largely on the network setup and situation.

    opendns familyshield

    opendns familyshield

    The OpenDNS Knowledge Base contains information on how to setup the DNS servers on various operating systems and devices.

    Advanced users might prefer the manual approach by creating an account to block only specific web contents. Families on the other hand can use the DNS servers to install a solid web filtering solution without the hassles of configuration.


    © Martin for gHacks technology news, Software And Internet Tips For The Geek In You, 2010. | Permalink | Add to del.icio.us, digg, facebook, reddit, twitter
    Post tags: content filtering, dns-server, opendns, opendns familyshield, web filter

  • Immunet v2 update on the way: adds multi-engine malware and virus scanning to cloud-powered core

    Filed under: Security, Windows

    You may not be familiar with Immunet, the Canadian startup who burst onto the scene last year with a light weight, community-driven Windows antivirus app. Immunet's user base is rapidly approaching 300,000 -- pretty phenomenal growth considering this screenshot from August of last year when I was one member out of 64.

    Immunet v1 has been a success, and the company is already hard at work on version 2. Now in closed beta testing, Immunet 2 will feature some big-time improvements to its antivirus and antimalware defenses. Thanks to a partnership with Sourcefire -- makers of the ClamAV -- and the introduction of Avira's scanning engine, Immunet 2 will be the first Windows antivirus app to sport multi-engine scanning.

    That's not the only thing which sets Immunet apart from other free Windows antivirus programs. There's one other giant difference: Immunet is free for use anywhere -- including commercial environments. Yes, you can run Immunet's antivirus defense on all of your SMB's machines without spending a dime. The same can't be said of apps like Avira, Avast, AVG, Comodo, or even Security Essentials.


    Immunet is, however, going to bring a paid version to market which will incorporate additional engines for even greater defense. I've been testing the new version, and the additions haven't come at the expense of system resources -- Immunet v2 is still one of the lightest antivirus apps I've ever used, and it runs nicely in tandem with Microsoft Security Essentials.

    The paid version also gets you additional scanners: email, archived or packed files, and deep scan. Both versions offer scheduled scanning, exclusions, and blocking mode -- which prevents application installs temporarily until they are determined to be safe.


    The new version also adds a community display which lets you see the users you're connected to as well as your "protection factor" -- the number of people in your network times the number of threats blocked. Immunet's Alfred Huger, for example, is much better connected than I am -- dwarfing my 30,960 with a PF of over 840,000. It's something of a fun feature and it helps encourage users to share Immunet to help boost their own PF -- which is in turn good for the whole Immunet community.

    Immunet version 2 looks very promising so far. If you're interested in getting your hands on a beta version to try out, stay tuned -- I'll be doing my best to secure access for some lucky Download Squad readers.

    Immunet v2 update on the way: adds multi-engine malware and virus scanning to cloud-powered core originally appeared on Download Squad on Wed, 23 Jun 2010 12:00:00 EST. Please see our terms for use of feeds.

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    antivirus - Microsoft Security Essentials - Avira - Security - Download Squad
  • Bios Beep Codes Viewer

    Part of a computer’s boot process is the Power On Self Test (POST) that tests the hardware of the computer. POST communicates successful or failed tests with beep codes. These BIOS beep codes provide the user with information about the system’s state and aid in the troubleshooting process in case one of the boot tests failed.

    Some hardcore technicians might know all the beep codes and their meaning, everyone else might benefit from a software like Rizone’s Beep Code Viewer which provides details about every beep code and possible causes.

    bios beep codes

    bios beep codes

    The software displays information about AMI, AWARD, IBM and Phoenix bios beep codes. Each beep sequence is listed with its linked error name and troubleshooting tips on how to resolve the issue.

    It is important to select the right BIOS manufacturer as all are making use of their own beep code system. 1 long and 3 short beeps for instance indicates a memory failure on AMI systems but video display circuitry problems on IBM systems.

    Most troubleshooting tips are general in nature. The tips to resolve the previously mentioned memory failure for instance asks the user to remove newly installed memory from the system, move or swap the memory and to test the memory in another computer if the other tips do not resolve the hardware issue.

    The software does not offer an option to print out the beep codes. It is however possible to copy and paste the text into a text editor to print it from there.

    Rizone Beep Codes Viewer is a portable software for Microsoft Windows operating systems. It is compatible with both 32-bit and 64-bit editions.


    © Martin for gHacks technology news, Software And Internet Tips For The Geek In You, 2010. | Permalink | Add to del.icio.us, digg, facebook, reddit, twitter
    Post tags: beep codes, beep codes viewer, bios, bios beep codes, portable software, windows software

  • Google Voice opens to everybody! Everybody in the US, that is.

    Filed under: Productivity, Web services, Google, VoIP

    Google Voice, Google's very useful call-forwarding-slash-voice-mail-slash-transcription service, has finally opened to everyone! Well, everyone in the United States, that is. I know we Americans sometimes act like we're the center of the universe, but plenty of users in other countries can't wait to get their hands on Voice. Even our intrepid editor Lee Mathews can't get it yet, and he's just a border away in Canada. Bummer!

    Voice has been mostly invite-only since launch, but it opened to college students and the military for a while, too. If this will be your first time using Google Voice, check out some of the features before you get started: SMS-to-Email, using Voice with your existing number and more are explained on this Google Voice help page.

    Does Google Voice opening up to everyone signal the upcoming launch of that new Google Voice web app Lee was predicting?

    Google Voice opens to everybody! Everybody in the US, that is. originally appeared on Download Squad on Tue, 22 Jun 2010 18:05:00 EST. Please see our terms for use of feeds.

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    googlevoice - Google - Canada - United States - Download Squad
  • GSmartControl lets you monitor your hard drive's health in detail

    Filed under: Utilities, Troubleshooting

    gsmartcontrol

    S.M.A.R.T is an acronym that stands for Self-Monitoring, Analysis, and Reporting Technology. It's a nice bit of intelligence that hard drive makers have been including into drive firmware for several years now. In simple terms, it's supposed to let you know that a drive is about to crash before the crash happens. You can then take measures to protect your data or, perhaps, return the drive to the manufacturer (if it's still under warranty).

    One interesting thing is that, while drives have been making this information available for quite a while, I am not aware of any built-in Windows features that take it into account. In other words, I don't think I get an automatic pop-up saying "your hard drive is dying" when doom is impending.

    Instead, to access that information and try to learn something, I need to use a standalone monitoring application. GSmartControl is one such application, and it seems very solid. It's open-source, free, and cross-platform (GTK-based, so it runs on Windows, Mac, and Linux).

    It's aimed at power users and administrators. You won't find a large, green, anti-virus style button that says "Everything is Okay." Instead, you'll find a wealth of statistics with cryptic names like "Reallocation Event Count." When you hover over each, you'll get an extensive explanation of what it means.

    GSmartControl also lets you test the drive. The shortest test takes two minutes and consists of a "collection of test routines that have the highest chance of detecting drive problems."

    This isn't the only tool for doing this kind of thing, and it is utterly lacking in any type of visual flair. But it's free, solid, and open-source.

    GSmartControl lets you monitor your hard drive's health in detail originally appeared on Download Squad on Tue, 22 Jun 2010 07:00:00 EST. Please see our terms for use of feeds.

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    Open source - Microsoft Windows - Download Squad - Hard disk drive - Linux
  • Use GOOG-411 and Skype to Call Any U.S. or Canadian Business for Free [Free] Skype calls toll-free numbers in the U.S. or Canada for free. Google's GOOG-411 directory service is a toll-free number, and can connect you to any searchable business. Combine the two, and any business is accessible for free, from anywhere in the world. More »



    Google - GOOG-411 - Canada - Business - Telecommunications
  • Turn an old router into a repeater
    linksys_repeater.jpg

    I love it when the internet seems to magically anticipate your needs and provides the info you desire. Such was the case today when, just last night, I thought I needed to finally break down and figure out how to seriously boost the wi-fi range in our house (which is too unreliable on the other end of the house, non-existent in the basement). Via Steve Roberts and Facebook came a link to this how-to on Lifehacker. Kevin Purdy shows you how to configure an old router to act as a wi-fi repeater via the magic of DD-WRT. Hey, I have an old Linksys router... [Thanks, Steve!]

    Turn Your Old Router into a Range-Boosting Wi-Fi Repeater

    Read more | Permalink | Comments | Read more articles in Computers | Digg this!
  • How To Protect USB Sticks And The Data On Them

    Carrying an USB-stick around with you can be beneficial in numerous situations. USB devices are for instance ideal to copy data without having to carry a larger device like a notebook or netbook around. They are also ideal for accessing portable programs on third party computer systems, nothing beats working with familiar programs on unfamiliar systems.

    But USB devices introduce several security risks that computer users did not have to cope with since the demise of the floppy disk. Programs like USB Dumper can for instance copy all contents of a connected USB-stick directly to the host computer’s storage devices without the USB-stick owner ever knowing that this happened.

    But losing confidential data is not the only risk. USB devices can also be targeted by malicious software which use the USB-stick as a host to infect other computer systems it gets connected to.

    This article takes a look at some of the options that USB-stick owners have to protect their sticks from those dangers.

    Protecting the data on the stick

    Data on USB devices can be read by any computer user on any system by default. The data is not protected and all it takes is to connect the stick to access the data on it. This alone can be a problem if the stick is lost or stolen.

    The only reasonable option is to protect the confidential data on the stick by encrypting it. We have seen other tips in the past that suggested to use the NTFS file system to protect the data from third parties. That tip might work if the third party is using a Windows NT based system, it fails if they are not.

    Encryption software like True-Crypt, USB Safeguard, Bitlocker or AxCrypt can be used to protect the data on the stick. It is often not necessary to encrypt the whole stick. True-Crypt can for instance be used to encrypt part of the space on an USB-stick. It creates an encrypted container on the disk. Data stored in that container becomes only accessible if the right master password is provided.

    The disadvantage of True-Crypt is that the encryption software is needed to decrypt the container. AxCrypt on the other hand creates self-extracting encrypted files. This is handy for single files that need to be protected but not a viable option if dozens or hundreds of files need to be protected.

    True-Crypt can be installed in traveler mode on the USB stick. Admin rights are still needed to execute the program on other systems though.

    All reviewed options until now have been software based. An alternative to that are secure USB devices that use build-in security to protect the stick and data.

    All popular manufacturers from Kingston to Corsair offer secure USB devices. The multitude of different security mechanisms and options makes the field quite hard to overlook.

    Devices differ in encryption algorithms used, their encryption strength and handling. Some require hardware based authentication on keypads while others are software based solutions that might not be compatible with all operating systems.

    Ironkey is a notable exception as it is compatible with Windows, Linux and Mac operating systems. Encryption and decryption is hardware based. The price is however on the upper end of the pricing scale for secure storage devices. The IronKey personal and basic sticks for instance retail for $79 with 1 Gigabyte of storage. Corsair’s Padlock offers 8 Gigabytes for $55.

    Both hardware and software based solutions to secure an USB-stick have their advantages and disadvantages. Software based security comes with no additional costs while hardware based devices are packed with additional features that might or might not be needed by the user.

    Hardware based solutions are not necessarily more secure than their software counterparts though. It has happened in the past that manufacturers had to recall their products after a flaw had been detected that could be exploited to gain access to the data on the devices.

    Securing data with any of the above solutions ensures that data cannot fall into the wrong hands if the device is stolen or if its lost.

    Misc Helpful Programs

    Another problem that users face from time to time is to forget to disconnect their USB stick from a computer. The data might be protected with encryption but losing the stick might still mean that a day’s work is lost as well.

    USB Stick Watcher is a small background application for Windows that will notify the user in regular intervals that the USB stick is still plugged into the computer. It will furthermore display the notifications on shutdown or logoff.

    usb stick watcher

    usb stick watcher

    USB Stick Watcher is a useful utility for people, who transfer their data (documents, music and more) across different computers. This will display recurring reminder if your pen drive is still plugged in PC. Also, USB Stick Watcher will show warning message every time when you try to turn PC off, or log off without unplugging your pen drive. USB Stick Watcher will ensure that you never leave your USB Stick plugged in to a computer!

    An alternative to this software based solution is to put the usb stick on the same keychain as the car / home keys. People will usually pay more attention to their keys than the USB stick they are working with.

    USB Write Protector is another interesting free software program. The write protection of USB devices can be enabled with this software. It only works on Windows PCs but is a small portable program that fits perfectly on USB devices of any site.

    usb write protection

    usb write protection

    Thumbscrew is an alternative to USB Write Protector. It provides access to the same functionality.

    Thumbscrew has a few limitations:

    1. I can’t guarantee it’s 100% forensically sound. Buy a proven USB hardware write blocker if you want to be sure.

    2. USB mass storage devices that are already mounted as writeable will stay writeable until they are removed and reinserted. The same applies if you turn off read only protection while a USB mass storage device is active, it will become writable and stay that way until removed and reinserted.

    USB devices with hardware write protection switches add an extra layer of security. All software based solutions need to be executed on the host system before they become active which is a problem if malicious software is already active on the host system. Hardware based write protection ensures that no data is written on the USB stick for as long as the protection is in place. Putting an antivirus solution on the USB stick could for instance be used to scan the host system to ensure it is clean before disabling the write protection on the USB stick.

    Are you using USB sticks regularly? Let us know how you protect your sticks in the comments.


    © Martin for gHacks technology news, Software And Internet Tips For The Geek In You, 2010. | Permalink | Add to del.icio.us, digg, facebook, reddit, twitter
    Post tags: encryption, Security, usb, usb devices, usb sticks, usb write protect

  • Lifehacker Pack for Mac: Our List of the Best Free Mac Downloads [Downloads] Looking to beef up your Mac with a few great—and free—apps that cover a whole lot of your productivity and computing needs? Our annual Lifehacker Pack for Mac rounds up the best free downloads for OS X. More »



    Lifehacker - RSS - Operating Systems - General Interest - FAQs Help and Tutorials
  • Five Best Places to Set Up Shop Online [Hive Five] Whether you make stuff as a weekend hobby or you're set on making a business out of selling your wares, it's never been easier to set up shop and sell things online. These five sites are a great place to start. More »



    Business and Economy - Shopping - Hive Five - London - Beekeeping
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