Re: GEOM/GELI Boot Disk Encryption
On Jun 7, 2007, at 9:54 AMJun 7, 2007, cpghost wrote: On Wed, Jun 06, 2007 at 07:00:44PM +0200, Roland Smith wrote: You may wish to (at least) encrypt swap partitions, /tmp and /var/tmp, and probably /usr/tmp (if it's not a symlink to encrypted /var/tmp) in addition to /home. Most userland programs can leak sensitive date there that you'd rather have encrypted too. Add to this: stuff like /var/db (esp. useful for /var/db/pgsql, /var/db/mysql, mail spool directories and some such), and maybe /var/log as well. Encrypting the complete /var filesystem is easier though... Some ports also use /usr/local/www to store user-specific data, but what's the point of encrypting this? ;-) Regards, -cpghost. So, back to encrypting my entire disk, I just need to put the boot partition on its own slice? There's all the bits available to start up the decryption stuff after that loads, so I can make my entire system, swap and all, encrypted, right? Eric ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: GEOM/GELI Boot Disk Encryption
On Wed, Jun 06, 2007 at 07:00:44PM +0200, Roland Smith wrote: > On Wed, Jun 06, 2007 at 07:28:48AM -0500, Eric F Crist wrote: > > I'm trying to take a system that already has a running freebsd system (or I > > can start over), and make the entire system encrypted. I've found > > instructions (freebsd manual) for creating secondary disks, but not the > > boot > > disk in particular. > > > > Can anyone point me in the right direction? > > Personally, I wouldn't bother encrypting anything but your own data, > i.e. /home. And for backup purposes it's better to make a seperate slice > for that anyway. You may wish to (at least) encrypt swap partitions, /tmp and /var/tmp, and probably /usr/tmp (if it's not a symlink to encrypted /var/tmp) in addition to /home. Most userland programs can leak sensitive date there that you'd rather have encrypted too. Add to this: stuff like /var/db (esp. useful for /var/db/pgsql, /var/db/mysql, mail spool directories and some such), and maybe /var/log as well. Encrypting the complete /var filesystem is easier though... Some ports also use /usr/local/www to store user-specific data, but what's the point of encrypting this? ;-) > Roland > -- > R.F.Smith http://www.xs4all.nl/~rsmith/ > [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] > pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) Regards, -cpghost. -- Cordula's Web. http://www.cordula.ws/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: GEOM/GELI Boot Disk Encryption
On Wed, Jun 06, 2007 at 08:27:09PM -0400, Bob wrote: > What is this virtual machine created with qemu you talk about? http://fabrice.bellard.free.fr/qemu/ especially http://fabrice.bellard.free.fr/qemu/about.html It is a program that emulates a computer. Using a file as a disk image it can run an operating system and software on a virtual PC. It's very handy if you want to experiment with other OS's without dual booting. Roland -- R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) pgpSPXI0CmlLR.pgp Description: PGP signature
RE: GEOM/GELI Boot Disk Encryption
What is this virtual machine created with qemu you talk about? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Roland Smith Sent: Wednesday, June 06, 2007 1:01 PM To: Eric F Crist Cc: freebsd-questions@freebsd.org Subject: Re: GEOM/GELI Boot Disk Encryption On Wed, Jun 06, 2007 at 07:28:48AM -0500, Eric F Crist wrote: > Hey folks, > > I'm trying to take a system that already has a running freebsd system (or I > can start over), and make the entire system encrypted. I've found > instructions (freebsd manual) for creating secondary disks, but not the boot > disk in particular. > > Can anyone point me in the right direction? The /boot directory must not be encrypted, so you need to put that on a separate slice. As for the rest, maybe the following thread will help you; http://lists.freebsd.org/pipermail/freebsd-geom/2006-July/001401.html The thing is that sysinstall doesn't support creating encrypted disks, so during install, you'd have to initialize and mount the encrypted slices manually, and then resume sysinstall. Personally, I wouldn't bother encrypting anything but your own data, i.e. /home. And for backup purposes it's better to make a seperate slice for that anyway. Disk encryption is only usefull when your disk is stolen; as long as the disk is mounted, the data is readable (if permissions allow) anyway. If your /home is already a separate slice, back up your data, unmount /home and encrypt it according to geli(8). Mount your encrypted drive and restore your backup. A good idea might be to create a virtual machine with e.g. qemu, and practice on that before you screw up anything important. :-) Roland -- R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: GEOM/GELI Boot Disk Encryption
On Wed, Jun 06, 2007 at 07:28:48AM -0500, Eric F Crist wrote: > Hey folks, > > I'm trying to take a system that already has a running freebsd system (or I > can start over), and make the entire system encrypted. I've found > instructions (freebsd manual) for creating secondary disks, but not the boot > disk in particular. > > Can anyone point me in the right direction? The /boot directory must not be encrypted, so you need to put that on a separate slice. As for the rest, maybe the following thread will help you; http://lists.freebsd.org/pipermail/freebsd-geom/2006-July/001401.html The thing is that sysinstall doesn't support creating encrypted disks, so during install, you'd have to initialize and mount the encrypted slices manually, and then resume sysinstall. Personally, I wouldn't bother encrypting anything but your own data, i.e. /home. And for backup purposes it's better to make a seperate slice for that anyway. Disk encryption is only usefull when your disk is stolen; as long as the disk is mounted, the data is readable (if permissions allow) anyway. If your /home is already a separate slice, back up your data, unmount /home and encrypt it according to geli(8). Mount your encrypted drive and restore your backup. A good idea might be to create a virtual machine with e.g. qemu, and practice on that before you screw up anything important. :-) Roland -- R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) pgptLRn8K4Q7P.pgp Description: PGP signature
