Ubuntu Security :: Encrypt Home Folder After Installation?
Feb 11, 2010
I have just installed Ubuntu Jaunty (I do not like Karmic, please don't try to make me upgrade) and after installing all my programs I realized I did not encrypt my home directory.
I know it's very simple to do this during the installation but I can't seem to find an option to do it after it.
Is there a way to do this?
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May 11, 2010
I'm using lucid desktop edition, and I need to encrypt my home folder, but I didn't mark that option in the fresh instalation of lucid. I'd like the login screen to ask for the password and then decrypt my files.Is it possible to do without erasing my user?
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Jan 27, 2011
I want encrypt my home folder by using the DES? How to do it?
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Jun 18, 2010
what i want to do is encrypt my entire home folder or at least make a new private folder where everything is encrypted. Previously i had tried to use truecrypt but it didnt work well on opensuse 11.2. Anyone here have issues with truecrypt with opensuse 11.2?
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Jul 25, 2010
How can I make Debian encrypt and decrypt my home folder when I log in/out like Ubuntu does?
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Apr 10, 2010
I recently installed Ubuntu Linux and did not encrypt the home directory during the install. Now I want to encrypt my home directory, or even better the whole hard drive.
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Jun 5, 2010
Is there a way to encrypt existing home directories in lucid so that they will unlock with pam-encfs when the user logs in? Or must you do this when the directory is created?
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Jan 5, 2011
I have a script that crond runs each night. The script pulls some sensitive files from an SFTP server and stores them in a folder on the local machine.I need to encrypt those files on the filesystem. Ideally, I could encrypt the folder they're stored in to require a password whenever the files are accessed. The problem is that then crond wouldn't be able to access the files. Using something like ecryptfs would allow the cron script to mount the encrypted storage by supplying the password, but now the keys to the kingdom are just sitting in a cron shell script.
Is there a good way to approach this? One thought I had was finding a tool that lets cron encrypt the files using a public key, then require a password to decrypt them (silently using the password to access the related private key)I don't want too much complexity on the decryption side, because I will have relatively non-tech people needing to access those files occasionally.
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Mar 14, 2010
Is there a way to encrypt your swap partition after installation?
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Jan 17, 2010
Is the encrypt system during the install part of the SE Linux or is a whole other thing and another question maybe a sounding a little conspiracy but SE linux is made by the NSA can I trust SE linux and it not be a backdoor to my stuff
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Mar 9, 2010
I just installed 9.10 on my laptop and selected the option for home folder encryption. I am running DropBox and placed the DropBox folder on my desktop (meaning it should be encrypted when I am logged out.) So I have two questions:
1) Shouldn't this setup cause my DropBox files on the server to be encrypted? Apparently they are not because they appear as unencrypted text using the DropBox Web interface.
2) If they were encrypted on the server (which doesn't appear to be the case right now), how would it be possible to share them with another client unless the encryption on both clients were set up identically?
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May 3, 2010
When I installed, I selected the option to encrypt my home folder. I believe this is causing constant crashes now, since error message is user id/password related. Is there a way to remove the encryption?
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Jul 19, 2010
Let's begin from the top. I have a relatively new laptop that I've been running Ubuntu on (along with a little-used Windows boot). Picked it up in November or so, installed the current "latest" version of Ubuntu at the time (9.10). I have been doing incremental upgrades, and it's been progressively breaking down more and more. Yes, this includes 10.04.
After GRUB stopped working, I decided it was time to try a reinstall from the top. I told it to leave all the other operating systems alone and do a full reinstall.
Fortunately, I had managed to stuff most of my current work in duplicate locations during this whole debacle, somehow. Don't ask me how I managed to do that when GRUB wasn't working. However, when I installed, I conscientiously said "Oh, yes, Ubuntu, encrypt my home folder! I love privacy!" As a result, about... 30 gigabytes of useful (but ultimately re-downloadable) material is rather inaccessible at the moment. When I try to boot the old system using the newly fixed GRUB, it goes into kernel panic. This seems like a no-go.
I have a saved hojillion-character long passphrase for decryption from my install back in November. Conscientiously saved in the case of just such an emergency.
I read this how-to and followed it to the letter as far as I could tell, trying to mount with ecrytfs to recover my data.
[USERNAME] here is a proxy for my actual username. Yes, the location of my old home folder may seem a little bizarre.
Code:
sudo mount -t ecryptfs /media/c82ca9fe-2b15-4aca-a98d-6482b1d80a32/home/[USERNAME]/ /home/[USERNAME]/oldhome
Passphrase:
Select cipher:
1) aes: blocksize = 16; min keysize = 16; max keysize = 32 (not loaded)
[Code].....
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Mar 9, 2011
I need to do a reinstall (read the details here): http://ubuntuforums.org/showthread.php?t=1703381 but I need to be able to access my home directory which is encrypted. Is there a way to decrypt my home folder, so that I don't get into trouble accessing it later on?
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Mar 19, 2010
How to secure the Home folder. I forgot what the script was?
Something like chmod 0700 $HOME. Is that right? I'm just not sure.
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Mar 20, 2010
When installing the latest Distro of Mint (I believe this is not much different, if at all, from Ubuntu as far as this goes) I chose to have my Home folder encrypted using the login password. This was a function of the installation. What I was wondering about was how secure this was and if I should maybe use something to do a better encryption or not.
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Apr 11, 2010
What are the steps I must take to move my existing home folder to a separate, encrypted partition? Can I create this partition without damaging my current partition? Where is a trusted location to download App Armor profiles? What else can I do to harden the security of Ubuntu?
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Jun 29, 2010
last week I decided to not just run dist-upgrade, but give the Lynx a completely fresh install. Before that I've only copied my home folder to an external hard-drive.
Now that I'm on Ubuntu 10.04 I have no clue how to import my old personal key and the passwords from the backup (my old home folder).
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Jan 4, 2011
Lately, I've found 2-3 times an .exe file with a random name in my /home, and another data file with a random name as well. I'm a user of wine, but none of the programs that I use seems to be the cause. Last time it happened I sent it to virustotal.com, and this is the result: [URL].. So, this is clearly a virus. The two files show "nobody" in the proprietary field and "none" as group. What can I do to track down the cause? Also, telepathy-butterfly likes to hog 100% of CPU lately, and all I can do is killing it: is someone exploiting a vulnerability? if so, why the hell would he drop a win32 virus?
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Mar 18, 2011
I would like to give a few students a preconfigured Ubuntu USB stick with certain apps. I also encrypted the home folder in case of loss.
With TrueCrypt, cloning an encrypted container would be a big no-no because any one could just backup their header with a known pw and use it to decrypt anyone else's container due to each container using the same master key. I assumes the same applies to home folder encryption, yes?
Is there a way, other than creating a new user with home folder encryption, of forcing a master key change?
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Aug 16, 2011
while since I've been here. I'm having an issue with a fresh install of 11.04. Due to work requirements, I encrypted my home folder, which is fine, however, it seems to randomly lock itself down while I'm working, and it's getting really annoying.
Apps stop working, I can't open nautilus (something about not being able to create certain folders because home is locked), hell, even the terminal link on my desktop says failed to launch application (though the launcher on the top panel works). I just have to run ecryptfs-mount-private and enter my password to fix it, but it's doing this every 15 minutes or so. what might cause it to relock itself so frequently? I would expect to not have to deal with mounting my private data, that should happen at login and be good until log out.
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Mar 21, 2010
Is there a way for my home folder to not be automatically mounted when i log in? And for that matter a way to change the password from my log in password to something else?
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May 17, 2010
If I wanted to transfer a home folder that was encrypted to another ubuntu computer could I? If I had a separate home partition that was encrypted, but I wanted to upgrade ubuntu to the latest version by doing a clean install is there an easy way so that I can still read the data encrypted with the old version?
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Jul 1, 2010
I was wondering how to activate encryption on my home folder, like sugested when creating the first user? in 10.04Also, is it any good to use?It's a work computer with sometimes private documents (cv, docs, etc) and i would like to be sure no one can access it, even as root.
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Nov 26, 2010
I logged in to Recover Mode ("Drop to root shell prompt") this morning to do something. Naturally, I wanted access to my encrypted home folder.
The README file says to run ecryptfs-mount-private. However, that command returns an error:
"ERROR: Encrypted private directory is not setup properly."
This cannot be correct, because if I log in normally, I get my home folder without any problem.
How can I access my encrypted home folder when I boot via Recover Mode?
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Jan 30, 2011
After buying an IBM/Lenovo USB fingerprint reader model FP06 and installing Fingerprint GUI, have problems to mount my home folder encrypted with eCyptfs. I was using it since the first time i install Ubuntu 10.10 64 bits. After login from GDM, there are some ways to make it work:
1) open a terminal window and type ecryptfs-mount-private. This decrypt the home folder, but need to logout and login again to my personal preferences can be reached (bookmarks in nautilus, in firefox, etc). Each time the PC is rebooted, the same process is needed to made again.
2) before login in GDM, change to a tty1 terminal (ctrl-alt-F1) and login from here. The personal folder decrypt then without problems. Then change to GDM (ctrl-alt-F, login an everything works fine. What could be the fault from GDM to not mount the encrypted folder?
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Apr 17, 2011
if it's possible to use a white or blacklist to control which folders are ecryptfs encrypted when you're using the "encrypted home folder" option.
Of course I can always create an extra folder outside of my ~ and then symlink what I don't want encrypted into it, but I'd rather that it's possible to create like, ~/.ecryptsfs/excludelist with a list of paths that shouldn't be encrypted.
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Feb 19, 2010
if these are set to be encrypted on installation how would I go about changing that?
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Apr 6, 2010
have the home directory encrypted after the initial installation? I know on a clean installation you can set this up.However, is there an easy way to do so after? Ubuntu Karmic x64
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Dec 19, 2010
In my opinion there should be a tool installed in Ubuntu by default which lets the user easily encrypt his home folder. One is given the option in the installed, but if one decides to encrypt his folders afterwards that's quite hard to achieve.
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