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34
votes
12answers
8k views

What do you do about staff and personal laptops?

Today, one of our developers had his laptop stolen from his house. Apparently, he had a full svn checkout of the company's source code, as well as a full copy of the SQL database. This is one ...
7
votes
2answers
958 views

Approaches for Linux server disk encryption

What are the approaches available for fully encrypting a disk on a remote server (say, colocated in a datacenter)? On Windows, we can just turn on Bitlocker with a TPM. Then the server can reboot, and ...
7
votes
1answer
389 views

State of hardware-assisted disk encryption in Linux

I use dm-crypt to encrypt partitions. I am building a small office server from consumer (or pro-sumer) category hardware. It made me wonder, hardware-assisted encryption is a notion in the air for ...
6
votes
8answers
1k views

Recommended drive encryption solution

I will soon be purchasing a number of laptops running Windows 7 for our mobile staff. Due to the nature of our business I will need drive encryption. Windows BitLocker seems the obvious choice, but it ...
5
votes
7answers
9k views

Windows XP Full Disk Encryption - What are the options?

I've been ask to look at full disk encryption software for our mobile users. We're running Windows XP SP3 PCs on a domain and my understanding is that we will not be upgrading to Vista and have no ...
5
votes
3answers
3k views

When to use Truecrypt, and when not to?

I have about 30 (this number will most likely grow over the next few years to 50 or more) unencrypted laptops that I have been tasked to encrypt (entire drive). These machines will be used off site ...
5
votes
1answer
200 views

Does LUKS also encrypt free space?

I have moved to Ubuntu 12 and chosen to use full disk encryption (encrypted LVM). So now I'm wondering: should I shred (eg: with secure-delete package, srm) the free disk space to remove any remnant ...
5
votes
1answer
148 views

Determine if LUKS/dmcrypt key is present

I am writing a Chef LWRP to add a key to a LUKS container and I'm having difficulty coming up with a way to determine whether or not my key already exists. cryptsetup luksAddKey will happily add the ...
5
votes
1answer
750 views

BitLocker with Windows DPAPI Encryption Key Management

We have a need to enforce resting encryption on an iSCSI LUN that is accessible from within a Hyper-V virtual machine. We have implementing a working solution using BitLocker, using Windows Server ...
3
votes
1answer
132 views

Why make random file for loopback device for encrypted file system?

I have read a few tutorials on setting up an encrypted file system using cryptsetup. They all start with the following creation of a random file dd if=/dev/urandom of=/etc/cryptfile bs=1M count=10 ...
3
votes
2answers
2k views

Encrypt remote linux server

One of my customers has requested that their web server is encrypted to prevent offline attacks to highly sensitive data contained in a mysql database and also /var/log. I have full root access to the ...
3
votes
1answer
133 views

Resting Encryption on iSCSI SAN in Hyper-V Environment

I have a need to implement resting encryption of data within our environment. Basically, we have a Hyper-V virtual server named FILER01 that runs Windows Server 2012 that is has a direct iSCSI ...
3
votes
1answer
543 views

Are there any Microsoft Exchange Clients for iOS and Android that store their local data in an encrypted manner?

I don't feel like this is a product recommendation question, more of a "does this tech even exist and is it feasible" question, but if I'm wrong, feel free to give this question the boot. Context: ...
3
votes
3answers
2k views

Full disk encryption on linux (ubuntu) w/o re-installing - possible?

I work at a company that takes security very seriously (like most). Our IT guy came in today to prepare us mentally to re-install our systems after he'll apply the new encryption policy (which will ...
3
votes
1answer
1k views

Very slow write performance on Debian 6.0 (AMD64) with DMCRYPT/LVM/RAID1

I'm seeing very strange performance characteristics on one of my servers. This server is running a simple two-disk software-RAID1 setup with LVM spanning /dev/md0. One of the logical volumes ...
2
votes
2answers
503 views

OS reinstall on a machine with Whole Disk Encryption

I have a machine that has McAfee SafeBoot Whole Disk Encryption on it. If I don't have the safeboot password, can I boot from a OS installation disk, format the disk and reinstall the OS? Will that ...
2
votes
1answer
2k views

What cipher is the “best” or better for LUKS?

I am looking for strong cipher for LUKS, currently I am thinking about SHA512, but encryption is not my cup of tea, so could you give me your hints, what are you using for encryption?
2
votes
2answers
1k views

Security of BitLocker with no PIN from WinPE?

Say you have a computer with the system drive encrypted by BitLocker and you're not using a PIN so the computer will boot up unattended. What happens if an attacker boots the system up into the ...
2
votes
1answer
180 views

Changing Disk Encryption key in CentOS 6.4

I checked the "encryption" checkbox in the Anaconda installer during CentOS 6 installation, which encrypts at the PV (Physical Volume) partition level. Now, for some security reasons, I want to ...
2
votes
1answer
229 views

Possible to set encryption block size in LUKS?

When I do a benchmark test modprobe tcrypt sec=2 mode=200 I see that different encryption block sizes are used test 0 (128 bit key, 16 byte blocks): 4460604 operations in 2 seconds (71369664 ...
2
votes
2answers
342 views

Decrease in disk performance after partitioning and encryption, is this much of a drop normal?

I have a server that I only have remote access to. Earlier in the week I repartitioned the 2 disk raid as follows: Filesystem Size Used Avail Use% Mounted on /dev/mapper/sda1_crypt ...
2
votes
2answers
262 views

Does dm-crypt support journaling filesystem transactional guarantees?

I'm considering using ext4 on encrypted LVM (which uses LUKS and dm-crypt). Will the transactional guarantees in ext4's journaling be preserved? Bonus: where may I find authoritative information ...
2
votes
2answers
788 views

Variable size encrypted container [closed]

Is there an application similar to TrueCrypt, but the one that can make variable size containers opposed to fixed-size or only-growing-to-certain-amount containers which can be made by TrueCrypt? I ...
2
votes
1answer
339 views

Apache serving files from an encrypted drive returns a 403 forbidden error

I create a sparsebundle and mount it as a virtual drive for each development project I work on. This works great until I needed to add encryption to one of the projects for added security of my ...
2
votes
2answers
1k views

Clarifications on encrypted LVM in Ubuntu, RAID1, and headless server

I’ve pondered about encrypting my hard disk on my laptop and server for quite some time, but never got around to it since I don’t think I understand how encryption affects my day to day usage and the ...
2
votes
2answers
3k views

CentOS / Redhat 6 Mount Encrypted Partition After Boot

I have an encrypted partition that I setup during install for CentOS 6 that I want to mount manually after boot. By default it prompts me for a password at boot time. I was able to get it to not ...
2
votes
2answers
213 views

Looking for centrally managed full-disk encryption product for Windows 7

Let me start this off by saying I've already evaluated and have planned to purchase SecureDoc Enterprise from WinMagic. However, due to billing issues (not price) I'm afraid I may not be able to make ...
2
votes
1answer
373 views

Migrating xp laptops with encryption to Windows 7

We are starting to look at migrating our systems to Windows 7 from XP. I've been playing with MDT 2010 doing automated installs and using USMT. I haven't started looking at how migrating xp laptops ...
2
votes
2answers
36 views

Workstation imaging on top of full disk encryption

Is it possible to use imaging tools (e.g. Acronis Snap Deploy, or possibly SystemImager) to deploy workstation images to laptops that have PGP full disk encryption? How could I go about doing this? ...
2
votes
1answer
265 views

How to use Google Drive as secure storage on a linux server

since google dropped the price for storage recently I thought about using it at my storage servers too add storage capacity easily. What I found so far is the ability to mount the google drive into ...
2
votes
2answers
1k views

Data encryption on VPS

I know there is no way to completely secure a running system, however I'd like to do do what ever is possible. I'm not sure how to phrase the question, but basically, I'd like to secure the data on ...
1
vote
6answers
5k views

Mounting encrypted drive/partition on Linux

I have a Laptop, on which the OS has got corrupted and gives a system32\config not found error. To recover my data, I can boot it using Knoppix but I am not able to mount my partition. My partition ...
1
vote
1answer
2k views

ESXi encypted VMFS?

Does anyone know a (free?) way to have a fully encrypted local-disk (no NFS,iSCSI,FC) VMFS inside the hypervisor itself? I am using ESXi 4.1 U2.
1
vote
1answer
498 views

Disable asking for a passphrase without having to re-make the encrypted partition

I have a server which I set up with its root partition totally encrypted. I urgently need to disable the passphrase dialog at startup because it is not letting the server boot up after an electricity ...
1
vote
1answer
940 views

Can I encrypt a single folder in Windows Server 2008 R2 with BitLocker?

Using Windows Server 2008 R2, is there a way to encrypt a folder, not the whole disk using Bitlocker?
1
vote
1answer
265 views

Does cryptsetup “Plain mode” store the hashed passphrase in each sector?

When I read the manpage for cryptsetup on Linux about "Plain mode" it says: Plain dm-crypt encrypts the device sector-by-sector with a single, non-salted hash of the passphrase. and the -c ...
1
vote
1answer
164 views

some Zimbra project planning questions

I am planning to deploy a ZCS machine in a remote DC on colocation. Using the latest Community edition Hardware: 2x SAS disks for OS in raid1, 8x SAS disks in raid10 for Zimbra, 32Gb RAM 8 CPU ...
1
vote
1answer
105 views

Expanding raid 5 luks partition

I have just bought 2 new drives to my raid 5 array. I have successfully added them to the array and resynced. I now have a /dev/md4 drive that is 16 TB, but the crypt-luks partition md4p1 is still 12 ...
1
vote
1answer
307 views

Troubleshooting I/O latency possibly caused by file system driver

I have a SQL Server instance (SQL Server 2008 R2, Windows 2008 R2) that complains, for very short, random periods of about 15-20 seconds, that some of its I/O requests are taking longer than 15 ...
1
vote
1answer
53 views

Will adding a Windows machine to a different domain adversely affect DPAPI encryption?

I am considering moving a machine on which DPAPI encryption is used from one domain to another. Will doing this break or otherwise adversely affect the DPAPI configuration - and already encrypted ...
1
vote
1answer
524 views

CentOS 6.3 drive encryption being on remove server

During the clean installation of CentOS 6.3, I choose to encrypt the primary partition / (the whole drive) (obviously except /boot). My point is to have fully encrypted drive (8 drives in RAID10) but ...
1
vote
1answer
611 views

Fix a Truecrypt Volume

I've have a backup volume using truecrypt (USB Disk, entire disk (eg /dev/sdb)) accidentally added to a Windows System and then using windows that disk has been initialized. No other action has been ...
1
vote
0answers
83 views

Enabling Disk Encryption on DC S 3700?

I have a server running Debian stable with two 100GB Intel DC S 3700 drives in a Linux MD RAID 1. According to Intel, these drives support 256-bit AES encryption and I would like to encrypt the data ...
1
vote
0answers
83 views

Can't mount ecrytpfs as a non-root user on Red Hat

I'm trying to mount a ecryptfs volume on Red Hat as a regular user. ecryptfs-utils is installed from source (repos only contain old versions). Mounting as root works normally, but trying with a ...
1
vote
2answers
493 views

Solaris, ZFS, Encrypted Boot to Secure Off Site Servers

We will be setting up a system for off site servers. All the hard disk data will be encrypted. The plan is to have a two part boot (if possible). The first part boots up and continually asks for the ...
0
votes
2answers
2k views

Is there such thing as hardware encrypted raid disk?

I have a server for which I want to protect the content. The server is located on a clients premises. Is there a way to encrypt the content of a RAID DISK (at hardware level) ? What I need is that ...
0
votes
2answers
196 views

Best Practice: Implementing a Full Disk Encryption on laptops

We are thinking about using TruEncrypt full disk encryption to protect the data on our laptops (roughly 15-20 in the healthcare field - XP & Win7). And I was wonder about backups, and not per say ...
0
votes
1answer
334 views

How to encrypt document root of Apache and all MySQL databases?

I need it encrypted and be decrypted just only when apache started, so this is the plan: Boot computer. Decrypt /var/www and mysql databases files. Start apache. So maybe its the path not to use ...
0
votes
1answer
277 views

Encrypted partitions with redundancy on ubuntu server

Hey I have to make a file system with an encrypted partition with on ubuntu server. something like Unencrypted: / - 10 GB /home - 10GB /var - 5GB -------------- Encrypted: /opt - 50GB This I can ...
0
votes
1answer
189 views

Linux crypted filesystem : is there actually big issues?

as a SaaS provider with sensitive informations we think about crypted filesystem (under Linux) but is there any problem about performances or maintenance if the filesystem crash? We want to use it on ...