My thoughts on Tech


  1. May 27, 2008    

    Dude.. Give Ubuntu a skip and try Debian.. (i.e. If you don’t mind Over-User-Friendliness and ‘teh cool effectz! *squeal!!1!!11\!’*)

    Reason being it’s much more stable.

    And Um.. FYI, Debian HAS Root Account.. You can disable it by installing sudo. (Nope.. Not Installed by default)

  2. May 27, 2008    

    Subbu: Ubuntu was on my VM. Was just exploring it. Not the greatest fan of Ubuntu. I’m waiting for openSUSE 11, if it’s any good I’ll upgrade openSUSE 10.3 to 11. Else I’ll just shift to Debian or maybe even Gentoo.
    Debian has root account enabled by default? Read it’s disabled :?

  3. May 27, 2008    

    Man just learned how to enable and disable account and regarding sudoer file in my class :P

  4. June 3, 2008    

    uff, sudo command has no users added in debian brands.. so this article is invalid, and only works in win-buntu…

    the file /etc/sudoers in debian, does not have entries for nobody, therefore no user is able to run the command sudo .. so, this does not allow him to make changes

    Subbu was right, u must use a real linux for future corrections in articles ¬_¬!

    More Info for a real linux distro : McKAY Debian and linux issues (packages and howtos)

  5. Bharath Ram's Gravatar Bharath Ram
    October 9, 2008    

    vry useful info dude…………… for newbies of ubuntu out there…………

  6. mudfly's Gravatar mudfly
    August 27, 2009    

    in regards to disabling the root account, which I am a fan of, you can still use sudo su - to switch to the root account, when needed.

  7. nitish's Gravatar nitish
    October 23, 2010    

    i want to disable root login until the admin connects its usb drive…i want to use drive as a key…plzzzz help

  8. Anon Ymous's Gravatar Anon Ymous
    January 20, 2011    

    @mudfly : bad idea to do it that way (can wreak havoc with environment variables and such thing). Rather use the proper way to do it (with sudo), which does not involve “su” at all : “sudo -s”, and voilà ;)

  9. Anon Ymous's Gravatar Anon Ymous
    January 20, 2011    

    @nitish: check on pam_usb ;)

    Bear in mind that it will not be multi-factor authentication, though (multi-factor implies at least two of the following: owning something, knowing something, and individually be someone): the fact that anybody easily copying your USB key will be able to impersonate you without any problem makes it so it will only give the illusion of necesitating to own something, while actually, it will just be one-factor authentication, with a secret a tad more difficult to know (nothing more, nothing less).

    Multi-factor authentication would involve biometry (meh…), or crypto-token (a smartcard, plugged in a USB reader, and protected by a PIN, which would lock the card after a defined number of failures: much, much, much better, though hardcore physical fiddling with the smartcard could still expose the key, of course – but it would be something your usual Joe would have a lot more problems to accomplish than a “dd” or “cp” of your USB drive).

  10. bobot's Gravatar bobot
    March 29, 2011    

    I guess a better way of disabling back the root is found in here: That is, by issuing the command: sudo usermod -p ‘!’ root

  11. salaidayalan's Gravatar salaidayalan
    June 14, 2011    

    it is very useful
    thank u

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  1. Vinayak on April 1, 2010 at 9:38 pm
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