Oscars

Must really suck to be Faye Dunaway this morning.

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[Network Administration] : Ubuntu and encrypted swap space

Installing Ubuntu 14.04LTS, I’ve gotten the following error:
the disk drive for /dev/mapper/cryptswap1 is not ready yet or not present
The message is annoying, but worse, the swap partition is not encrypted.
I was able to get around this by editing the /dev/crypttab to list the /dev/ path to the drive instead of the UUID in the cryptswap1 entry:

# 				
cryptswap1 UUID=2f36a43f-0d3e-4c2e-92ad-ac12603c1ff0 /dev/urandom swap,cipher=aes-cbc-essiv:sha256

was changed to:

# 				
cryptswap1 /dev/mapper/cerf--vg-swap_1 /dev/urandom swap,cipher=aes-cbc-essiv:sha256

I still get the message, but the swap space is encrypted now.

cerf:~> sudo swapon --summary
Filename				Type		Size	Used	Priority
/dev/mapper/cryptswap1                  partition	8314876	0	-1

[Network Administration]: OS X and Mobile Accounts

I have both Ubuntu and Linux machines. One of the goals is to have access to all of the same information regardless of where I log in, and to have it transparent to the machine that I’m actually using. Continue reading “[Network Administration]: OS X and Mobile Accounts”

[Network Administration]: Kerberized SSH

At this point, most of the infrastructure is in place. Now I could tie some other services together with this infrastructure. For my servers (not the kerberos KDC and LDAP directory), I’ve configured kerberized SSH. It’s a good starting point to see the benefits of single sign-on. Continue reading “[Network Administration]: Kerberized SSH”