Category: English
Stuff written in English
Colourful and informative diagnostic by clang
clang is a breath of fresh air when it comes to deliver meaningful diagnostic of errors in program code. Not only is the diagnostic colourful on screen, clang also points out where in the source file changes ought to be made.
Read More → Colourful and informative diagnostic by clangWhen to create a ZFS filesystem?
Someone named “Edward M” posted on the freebsd-questions mailing list a question of when should we create a ZFS filesystem. I didn’t reply to any of the messages, but I decided to write this post expressing my view. In short, whenever a part of the filesystem hierarchy exhibits different characteristics, create one or more ZFS […]
Read More → When to create a ZFS filesystem?Secret splitting
A few days ago I resurrected all my files from a desktop system I haven’t used for almost six years. Below is my implementation of secret splitting as described in Bruce Schneier’s book “Applied Cryptography, 2nd edition”. The idea is basically: generate a random keystream, xor the plaintext with the random keystream, use separate couriers […]
Read More → Secret splittingZFS Delegated Administration in FreeBSD
If you trust your users well, you might feel slightly less anxious and allow your users to create new filesystems below their own home directories.
Read More → ZFS Delegated Administration in FreeBSDAre you prepared for the World IPv6 Launch on June 6, 2012?
Last year we had the World IPv6 Day on June 8, 2011. This year we’ll have the World IPv6 Launch on June 6, 2012. According to this joint press release by Akamai Technologies, Inc., AT&T, Cisco, Comcast, D-Link, Facebook, Google Inc., Internet Society, Internode, Limelight Networks, Microsoft Bing, Time Warner Cable, and Yahoo!: Major Internet […]
Read More → Are you prepared for the World IPv6 Launch on June 6, 2012?Relational confession
Every non-key attribute must provide a fact about the key, the whole key, and nothing but the key, so help me Codd. From IRC@EFnet: 2012-04-12T11:34:56+0200
Read More → Relational confessionPersisting IPv6 DNS resolver addresses
Here’s a conundrum aimed at those dabbling in the internals of Microsoft Windows 7.
Read More → Persisting IPv6 DNS resolver addressesNot enough room for wired pages?
One of my systems is running FreeBSD/amd64 9.0-STABLE and is using ZFS for all its worth. The amount of installed memory in this system is 8 gibibytes, which should be enough to please even ZFS’ ARC. After a few hours of uptime not everyone are happy, and one of those unhappy guys are GnuPG.
Read More → Not enough room for wired pages?Resizing mirrored ZFS root pool
George Mamalakis was having trouble with ZFS not detecting and utilizing his resized GPT freebsd-zfs partitions. Marco van Tol came to the rescue with a corrective procedure. Credit goes to George Mamalakis for raising the issue and to Marco van Tol for the solution. I’m just a simple bystander in comparison to these two, fine […]
Read More → Resizing mirrored ZFS root poolPeriodic ZFS snapshots
As I continue exploring the nearly endless possibilities within ZFS, I figured it would be neat to have periodic snapshots of my mail files. The “Interweb” is filled with various shell scripts for this purpose, and I guess another one won’t make much difference.
Read More → Periodic ZFS snapshots