LinuxQuestions.org
LinuxAnswers - the LQ Linux tutorial section.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Security
User Name
Password
Linux - Security This forum is for all security related questions.
Questions, tips, system compromises, firewalls, etc. are all included here.

Notices

Reply
 
LinkBack Search this Thread
Old 07-07-2009, 04:10 AM   #1
varewoolf
LQ Newbie
 
Registered: Jun 2009
Posts: 23

Rep: Reputation: 15
Thought about Linux security...


We all know that is a much better OS in the Security aspect than windows..well i have some thought about the security in linux..

we all know that we could alter the root password of linux on the grub boot level.,.. so what is the security i can bind to my laptop...wat if i lost it or theft..how can i protect the data....archiving the whole data with password is a not practical approach...i have done to access another linux box using my knoppix once..so is there any ultimate to vault ur linux box from unauthorised access...
 
Old 07-07-2009, 04:26 AM   #2
vharishankar
Senior Member
 
Registered: Dec 2003
Posts: 3,142
Blog Entries: 4

Rep: Reputation: 120Reputation: 120
Unfortunately if somebody gets physical access to a machine, there's any number of ways to bypass the software level security you might have use. At the lowest level, somebody can use a disk dump utility and take away all your data.

Of course, to have some level of restriction, you could use a BIOS password, even that is not 100% safe. Encrypted file system for your sensitive data could also help.

Last edited by vharishankar; 07-07-2009 at 04:28 AM.
 
Old 07-07-2009, 04:53 AM   #3
nowonmai
Member
 
Registered: Jun 2003
Posts: 481

Rep: Reputation: 47
Full disk encryption, preferably with multi-factor authentication is the only way to do for defense against physical access.
Truecrypt provides full disk encryption, but unfortunately can't utilise the TPM (yet), so is limited to single-factor authentication... i.e. password. You could always use a device like a Yubikey in static-password mode to enter a cryptographically strong password (long & random).
 
Old 07-09-2009, 05:14 PM   #4
anomie
Senior Member
 
Registered: Nov 2004
Location: Texas
Distribution: RHEL, Scientific Linux, Debian, Fedora, FreeBSD
Posts: 3,925
Blog Entries: 5

Rep: Reputation: Disabled
I'm inclined to believe that disk encryption (even w/ just single-factor authentication) is sufficient to discourage all but the most persistent of laptop thieves. i.e. If the FBI is trying to get access to your laptop data, they're going to get it. If some kid does a smash and grab on your vehicle, he'll give up and install Windows.
 
Old 07-10-2009, 03:04 AM   #5
nowonmai
Member
 
Registered: Jun 2003
Posts: 481

Rep: Reputation: 47
Quote:
Originally Posted by anomie View Post
If the FBI is trying to get access to your laptop data, they're going to get it. If some kid does a smash and grab on your vehicle, he'll give up and install Windows.
Absolutely, on both counts. All the FBI (or any law enforcement agency) need to do is threaten you with a 'willful impediment' charge and you'll be forced to give up whatever keys you have.
 
  


Reply

Tags
security


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
A thought on Linux and gaming Abe_the_Man Linux - Games 627 04-17-2004 09:41 PM
I thought that linux didnīt crash? jimdaworm Linux - Newbie 22 09-13-2003 09:16 PM
i thought linux doesn't crash phishintrip Linux - Software 9 07-10-2003 06:10 PM
I thought Linux was stable - Mandrake 8.0 Herodotus Linux - Newbie 2 08-24-2001 12:33 PM


All times are GMT -5. The time now is 08:53 AM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration