https://en.wikipedia.org/wiki/Red/black_concept describes a notation sometimes used when discussing confidentiality:

• red denotes signals carrying secret plaintext;
• black denotes signals carrying ciphertext.

Is there any generally agreed coloring for the analogous integrity question? i.e.:

• a color which denotes signals where integrity matters (or ( Read more... )

We visited the Centre for Computing History in October. Although a bit haphazard in places there's a lot to look at and much of it was familiar.

naath playing Atic Atac. You run around a castle collecting keys (to get through doors) and the fragments of a quest object. I spent a lot of time playing this; I remember one of my brother and I finishing ( Read more... )

From time to time I and colleagues find ourselves extending some function in C in a way that requires extra arguments. Often this happens in a context where it's impractical to change all the callers (for instance, because some of them are in customer code) so the extended version of the function gets a new name and the original name just calls ( Read more... )

Ad-blocking in web browsers has been going on for years, but it’s generating more press lately because Apple have started doing it. (Possibly also it’s reached sufficient levels that it’s starting to hurt). I have very little sympathy for the organizations impacted by this for a number of reasons, but in particular:

1. Online adverts represent a ( Read more... )

I got the platters off.
( A few more pictures )

As well as the spare disks mentioned in the previous postings I have a number of broken disks. I’ve been meaning to disassemble one for a while and today I found the time to do so.
( Pictures )

Does anyone have any use for the following things?

• 1.5TB USB2 external hard disk (the disk inside identifies as a Western Digital 15EADS)
• 1.5TB 3.5" SATA hard disk (Seagate Barracuda 7200.11, formerly inside a USB enclosure)
• 750GB 3.5" SATA hard disk (Hitachi, HDT721075SLA360)

All are fairly well used. (I have some PATA disks around too but I ( Read more... )

I wanted some USB3 ports on a (pre-USB3) Linux box; I bought an Inateck KTU3FR-4P PCIe card, which has a Fresco Logic FL1100 controller. It seems to work (Debian backport 3.9.0 kernel). I mention this because when I was trying to find out what devices would and would not work Google was not especially forthcoming...
( Appearance )

(parted) mkpart primary 0 100% Warning: You requested a partition from 0s to 5860533167s. The closest location we can manage is 34s to 5860533134s. Is this still acceptable to you? Yes/No? yes Warning: The resulting partition is not properly aligned for best performance. Ignore/Cancel?
As far as I can see the only way to discover what alignment ( Read more... )

Notes from upgrading a couple of machines to Debian wheezy:

• Dovecot made quite a mess of upgrading itself and needed a lot of configuration file surgery. Fortunately not much had changed in a nonobvious way, things had just moved around and not captured the prior configuration.
• mediawiki needed some manual database surgery and ( Read more... )