We’ve managed to avoid devastation just days prior to Christmas as the Mayan calendar took a new turn. We’ve even survived celebrating the New Year, although some of us weren’t so lucky due to careless handling of fireworks.
If you’re into computer science, then Don Knuth‘s 18th Annual Christmas Tree Lecture entitled “Trees and chordal graphs” might cheer you up.
Sometimes the default location of the Client-side Caching database is just plain unsuitable. Client-side Caching, or CSC, is used for storing offline files, local copies of files normally stored on Windows shares, stored on Windows servers. (The Norwegian term is «frakoblede filer».)
The default location for the CSC database is C:\Windows\CSC. If you like to keep the OS and the software separate from any user data, or want to store the CSC database on a dedicated local partition, then it might be useful to change the location to, e.g. D:\CSC. Continue reading
Ever tried activating Microsoft Windows 8 Professional using only GUI tools when installed from a volume license DVD? Right, you can’t, for three reasons: Continue reading
Today, I decided to upgrade PostgreSQL from 9.1.5 to 9.2.0 on one of my computers. Ironically, PostgreSQL 9.2.1 was released today, but until the FreeBSD ports hierarchy catches up, the most recent version available is 9.2.0, unless of course you want to do everything yourself. Continue reading
Not long ago was it announced that the FreeBSD ports tree will cease exporting its Subversion repository to CVS, and subsequently any use of CVSup for updating the ports tree will be discontinued by February 28th 2013.
FreeBSD’s main source tree repository has been served by Subversion since late May 2008 with every commit done in the Subversion repository being exported to the old CVS repository, but no date has been announced when that Subversion to CVS transfer will be shut down. Stay tuned for more information.
Nonetheless, this is a Good Time™ to begin the transition from CVSup to Subversion once and for all. And why not set up your own FreeBSD Subversion repository mirror for both the main source tree and the ports tree well ahead of the transition? Continue reading
An acquaintant posted the following question on an IRC channel earlier today:
How many IPv4 addresses are there?
The quick and simple answer is 232 = 4,294,967,296 addresses.
Is this an accurate answer? Yes, in a strict interpretation of the original question.
A far more interesting puzzle is if you want to account for all the IPv4 addresses usable on the public internet. Continue reading
ICANN #44 is taking place in Prague these days. Sadly I was unable to attend, but the presentations are available in the open. Today’s IPv6 session would be the highlight in my very biased opinion.
I have wondered what emails sent from smartd would look like. Interestingly, I received such a sample from one of my systems a couple of days ago. Continue reading
Someone found my old ZFS snapshot script rather useful and wanted to improve it. Unfortunately I used the GPLv2 license in the original script. To accommodate my friend, I have re-released the snapshot script under the 2-clause BSD license. Feel free to use whichever license, 2-clause BSD or GPLv2, that suits your needs. Continue reading
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.
Colourful and informative diagnostic by clang