Questions about encryption such as home folder encryption, partition encryption and file encryption.

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1answer
370 views

Prevent users from encrypting their home folders

How can I prevent users from encrypting their home folder on a server inside our company without removing the respective packages? Are there any policies I can enable to prevent this? Edit: the ...
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4answers
1k views

How to encrypt /var/www?

I want encrypt my /var/www folder so I and apache had access. How can I done this? I tried use ecryptfs, but my sites does not work. Please write example, or link for manual.
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2answers
744 views

Does ecryptfs-setup-private use real time encryption?

I'm trying to encrypt some sensitive files on my computer, and I'm trying to figure out what the best option is. I'm considering using ecryptfs-setup-private or a True Crypt file container. I like ...
4
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4answers
5k views

Can I use gparted to resize a Truecrypt-encrypted partition?

I have an external drive with two partitions - one encrypted, the other not so. I'd like to move all the data to the encrypted partition, and then resize it to take up the whole drive. If I use ...
4
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1answer
528 views

Why is ecryptfs so slow when running du -s?

I have been using Ubuntu's encrypted home folder system for some time now and have not really noticed any slowdowns except in two specific cases. When I run du -s in my home folder, it takes several ...
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1answer
4k views

Recovering eCryptfs partition with ecryptfs-recover-private not working

I am trying to reinstall, but I want to backup my encrypted home first, so I booted up from a live CD, mounted the hard drive, ran sudo ecryptfs-recover-private <home directory here> and it ...
4
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1answer
769 views

How does home folder encryption work?

Back when Ubuntu first sported home folder encryption (what, around the time of Jaunty Jackalope?), I opted in. That caused me some grief when I decided to change my login password. I found that I ...
4
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2answers
1k views

How does Ubuntu mount the encrypted home folder when accessing it over samba?

I'm puzzled. As far as I understand it, the user folder /home/user is encrypted with the users password. Connecting through smb to the computer does somehow decrypt the user's folder. How is this ...
4
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2answers
211 views

Is the lock screen secure enough to prevent “Mallory” from accessing the encrypted drive?

I use truecrypt to encrypt one of my drives and I would want to leave the computer running processes that use information of that drive while I'm not home, I've tried suspending it but everything ...
4
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1answer
338 views

Is my swap encrypted or not?

I chose to encrypt the home folder while installing Lubuntu 12.10 (64-bit), but after that, sometimes I get error that the system "cannot find /dev/mapper/cryptswap1 wait for mount or cancel at splash ...
4
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1answer
2k views

Swap encryption and hibernating

I run Ubuntu 12.04 on my laptop, with an encrypted home folder + swap partition. Before I had this encrypted setup, I used to have my hibernation enabled. I found this documentation on how to enable ...
4
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2answers
711 views

How to expand encrypted /home to second internal drive?

I have a huge number of photos, and I want to move just my /Pictures folder to a second SATA drive in my computer for performance reasons. I want everything to work as it is now, except that /Pictures ...
4
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1answer
3k views

how to mount / with encrypted lvm root during installation?

In order to understand Linux better, I'm trying to manually configure an encrypted root lvm partition . I have already tried this with the Ubuntu server installer by choosing the lvm encrypted option ...
4
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2answers
637 views

Encrypting an extra partition with ecryptfs?

I have an extra ext4 formatted partition which I would like to ecrypt with ecryptfs. I have chosen not to go for home directory ecryption and having a encrypted private directory also hasn't helped ...
4
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2answers
519 views

What is the difference betwen creating a Private encryped folder and encrypting the whole Home directory at the time of Installation?

Which method is more preferable in which situation ? Which process poses less stress over the cpu ?
4
votes
1answer
2k views

Full Disk Encryption with LUKS: auto mount second volume

TrueCrypt on Windows can auto mount volumes that use the same passphrase as the boot volume. You enter the passphrase only once. Is there a way to do this with LUKS? Background: I'm currently ...
4
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2answers
429 views

A way for an Upstart event to be sent whenever ecryptfs homedir mounted/unmounted?

I have an encrypted homedir (ecryptfs) and I'm wanting to run a private mysql daemon with the database files in my homedir. The daemon should be started whenever the homedir is mounted, and stopped ...
4
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1answer
72 views

Is it possible (and safe) to simply delete the encrypted home directory and create a new one?

I lost the passphrase for my account on a server. I have spent more time configuring the settings of the server than I have putting files in my home directory so I want to know if I can just delete ...
4
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1answer
2k views

WICD WPA2-PEAP connection without domain

I'm having trouble connecting to my school's wifi. It uses WPA2-PEAP and TKIP. The instructions for connecting tell me to leave the domain field blank and just enter my user name and password. This ...
4
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1answer
2k views

Slow SSD + dm-crypt with Luks encryption in Ubuntu 12.10

I have an 128 GB SSD installed in my laptop (Samsung 840 Pro) on a Sata 3 interface. This laptop also has an i5 3210m Ivy Bridge Intel processor and 8 GB of RAM. I installed Ubuntu 12.10, using the ...
4
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1answer
562 views

Is /home encryption useful on a server?

I've got a question about the use of encryption: I set up a Ubuntu 12.04 server to use it as a router, file server for backups and webserver. Of course, it is probably not the best idea to put ...
4
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1answer
10k views

How to disable encrypted home directory? [duplicate]

Possible Duplicate: How to stop using built-in home directory encryption? i know encrypted home directory is a great security function but i want tot disable it. i am using Acronis True ...
4
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1answer
4k views

Problems mounting an encrypted volume on a different computer

I have a set of external hard drives that I use for backups of my photos and images. They were formatted as EXT4 and setup with encryption from a laptop running Ubuntu 10.04 - and I've had no problems ...
4
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1answer
632 views

Suspend to RAM and encrypted partitions

Normally I don't shutdown my notebook any more in favour of using suspend-to-RAM. The downside is that my encrypted home partition is completely accessible after resume without entering the ...
4
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2answers
276 views

How do I test for TrueCrypt?

I'm fairly certain my Ubuntu 11.10 install has truecrypt for my home directory, but how can I check. Preferably without rebooting into a live disk install?
4
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1answer
235 views

Identical folders in home directory after decryption of home directory failed

So this morning I turned on my laptop, and everything seemed to be going fine until I logged in. All my settings were gone, back to the default desktop, default programs and everything. I did an 'ls' ...
4
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2answers
332 views

How do I set for XTS mode when installing ubuntu with guided setup for encrypted LVM?

I read that CBC-ESSIV is used as the default mode for LVM entire disk encryption. I want to use XTS mode instead. How do i select this when installing?
4
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1answer
406 views

Resizing boot partition with full disk encryption

I have seen the answers to the general question regarding resizing the boot partition. In my case, I have installed Ubuntu 12.04 Alternate with full disk encryption. Since the drive can not be ...
4
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0answers
504 views

How Do I Customize the “cryptroot” Script?

I have a system where all the partitions (/, /home, and swap) are encrypted except for /boot. /boot resides in an external device which also contains a set of encrypted key files used to automatically ...
4
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1answer
176 views

Long passphrase for login and short password for screensaver

The situation is that: For the encrypted home directory, any passphrase less than 10 characters is useless at all. If someone physically get the harddisk, the data and the other sensitive password ...
4
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1answer
353 views

How can I backup my system, encrypt the disk, and restore? [duplicate]

Possible Duplicate: Encrypted System Backup I would like to encrypt my entire disk offered by a fresh Ubuntu install as described here. However, my current laptop has too many ...
3
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2answers
476 views

How can I automatically log into a fully encrypted Ubuntu system without a password prompt?

I've recently installed Ubuntu with a full disk encryption which means I have to enter a password at boot to get the system up and running. This is excellent and exactly what I want for the future. ...
3
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2answers
3k views

How do I access an encrypted home folder from a dual-boot machine?

(This might not be an Ubuntu-specific question?) When I installed 9.10, I opted to encrypt my home folder using ecryptfs, but then I discovered this locked me out of my ext3 partition when I tried to ...
3
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4answers
6k views

Enable disk encryption after installation

I'm running 13.10 Saucy. If I didn't enable disk encryption during installation, is there any way to enable it post facto? I found this, which says that encryption has to happen at install time, ...
3
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2answers
1k views

How to make a partition truly secure?

When I boot from an USB stick into my laptop I am able to mount and connect through chroot to the my hard drive and browse my files without a problem, while this has been something very very useful in ...
3
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2answers
627 views

How do I make space in /boot/?

I have /boot/ on a separate partition from /, and /boot/ is 98% full. How do I make more space on it?
3
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3answers
2k views

Which programs to encrypt files work on every system (Linux, Windows…)?

With which programs can I encrypt files that work on every system? (Linux, Windows...)
3
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3answers
3k views

What XMPP Servers are available?

I am looking for an XMPP server to install on my ubuntu server, but so far couldn't find any comparisons of the pros and cons of different implementations. Is there an implementation that is a ...
3
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3answers
863 views

Passwords in the Password/Encryption Keys program

I noticed that I have passwords in the Password/Encryption Keys program . It appears that anybody who walked up to my computer could go look at all my passwords without needing a master password. Did ...
3
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1answer
1k views

Using word list to brute force encrypted partition

I used the Disk Utility to encrypt an external HDD about a month ago. Now it seems that I have forgotten the password. I have formed it according to a set of rules, so I have generated a word list ...
3
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1answer
2k views

How to retrieve passphrase for private key?

I generated DSA key using ubuntu. Saved the public key on remote server, such that keys are required before connecting ssh. I have forgot the passphrase for that key. How can I retrieve it?
3
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2answers
3k views

How to obtain a S/MIME certificate for e-mail encryption?

There are parties, e.g. enterprises, that uses S/MIME certificates for e-mail encryption. To my understanding Thunderbird has support by default for S/MIME. But I have not found a way to obtain a ...
3
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2answers
550 views

Does Ubuntu encrypt the home folder by default?

My laptop has been stolen and it contained highly sensitive data. I did have a password that was required to login, but I am unsure if my data is safe. (at this point the data is more valuable than ...
3
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1answer
121 views

Should I record my encryption passphrase?

I just completed an installation that I've encrypted my home directory on, and got the dialog box inviting me to record my encryption passphrase. I don't see any possible benefit to doing this; if I ...
3
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1answer
400 views

Mount on filesystem of type eCryptfs explicitly disallowed due to known incompatibilities

I get this error when I'm trying to do sudo mount -t ecryptfs folder1 folder2 in my home folder (encrypted by ubuntu) I tried the same command but folders at /tmp, it worked as expected. The error ...
3
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1answer
566 views

Clone encrypted HDD to smaller drive

For my work Laptop I use full HDD encryption and I need to upgrade my 500GB HDD to a 250 SSD drive, my HDD has only around 100GB of data and is created via encrypted LVM. GParted does not support ...
3
votes
1answer
541 views

MD + LUKS + LVM will not cleanly shutdown

My setup is currently raid1 + luks on each md partition and lvm on top to stripe between the arrays. There is only one volume group with one logical volume currently. sdc ...
3
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1answer
872 views

Encrypt SSD or not?

My desktop machine is running Ubuntu 12.04 (and will probably stay with it until the next LTS). I've got a new 120GB SSD on the way as my existing 420GB spinning disk. If it makes any difference I'll ...
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2answers
2k views

Using portable Mode for true crypt for crypting Portable HDD , USB etc

I was wondering how to encrypt my external HDD so that my data would be safe AND accessible from any OS platform (Windows and Linux). So I went through many posts and forums and found out the best ...
3
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2answers
852 views

How to resize an ext4 encrypted home partition?

Which is the best way in order to resize an encrypted (ecryptfs) ext4 home partition ? Pros nad Cons of each method are greatly appreciated. $ fdisk -l Disk /dev/sda: 256.1 GB, 256060514304 bytes ...