If you'd like to follow shorter scribbles of what I get up to, like my work at Open Query, OurDelta and of course the BlueHackers initiative, I've got myself organised at http://twitter.com/arjenlentz or http://identi.ca/arjenlentz (you can pick one, they have the same feed).

I don’t want to post the link to this (perhaps, it was left public unintentional?) but here is what I stumbled upon recently. This is a log of production maintenance of IT systems in Perth, Western Australia (as far as I could say):

Good idea but shouldn’t companies keep this sort of information private?

Introduction

Clickjacking is a malicious technique of tricking web users into revealing confidential information or taking control of their computer while clicking on seemingly innocuous web pages. A vulnerability across a variety of browsers and platforms, a clickjacking takes the form of embedded code or script that can execute without the user's knowledge, such as clicking on a button that appears to perform another function (credit: Wikipedia).

Clickjacking is hard to combat. From a technical standpoint, the attack is executed using a combination of CSS and iFrames, which are both harmless web technologies, and relies mostly on tricking users by means of social engineering. Additionally, the only server side technique against …

Executive summary: There is now a MySQL Room on FriendFeed, as well as a identi.ca group for mysql. Community members, developers, dabblers, users, etc. should find these extra avenues useful, in addition to the forums, mailing lists, and even the Forge. Join them now!

There has been a recent uptake of Twitter amongst the MySQL community… Early adopters have been around for ages, even (as we’re slowly approaching Twitter’s third birthday).

However, I’ve been noticing that slowly, …

Everyone and their mother are throwing out their predictions for 2009 nowadays, itâ€s a new fad. Itâ€s like youâ€re not cool anymore if you donâ€t have twitter, a Mac, and a set of random predictions for the next 12 joyous months.

So I decided to throw in a few ideas of my own to be part of the cool crowd again (how much cooler can I be already, you might think, and I wouldnâ€t blame you).

Disclaimer (read it, tough guy)

What this post is:

• about the future of technology and the Internet, 2009 and beyond.
• my ideas on what is going to happen or should happen. If they happen to match someone elseâ€s ideas – it doesnâ€t mean I ripped them off, it just means we share the same opinions and theyâ€re more likely to come true.
• awesome.

What this post is not:

…

When your favourite ex yahoo employee and mysql guru blogs about a "dns problem" and how he solved it using Twitter you can only smile ;) At last some useful use for Twitter .. when it's up at least ..

Laurel Ruma (@laurelatoreilly) just did a quick census of the number of O'Reilly employees on twitter. She came up with 74 twitter accounts out of about 300 employees worldwide, plus five people who were controlling departmental or project-based O'Reilly twitter accounts like the following:

Official O'Reilly account:
@oreillymedia: The top level O'Reilly Media site.


@oreilly_verlag: O'Reilly Germany

Number of O'Reilly products or divisions on Twitter: 8


@make: Make: Magazine and makezine blog

@craft: Craft: Magazine and craftzine blog
…

Do you read German? Then I have two recommendations for you.

First, go read this fresh interview with the German social networking guru Klaus Eck. It’s about “a life long job application process”.

Second, go read the book “Karrierefalle Internet” (”Career trap: Internet”) by Klaus Eck. That book is what the interview is all about.

Klaus Eck’s basic statement is “go manage your online reputation before others do it for you“. He notes that he’s seen plenty of Angst amongst …

If a MySQL DBA from Pythian goes to Oracle Open World, it would be a shame not to send an Oracle bloke, so there I am — presenting a 90-minute session on the first day of the OOW 08 entitled Under the Hood of Oracle Clusterware.

I gave it during RAC Attack in Chicago and I’m pretty satisfied with how it went, so there should be no significant changes to the presentation. The session is in “User Group Forum,” thanks to RAC SIG and Dan Norris.

When the session was first …

If you haven't heard of Digsby yet, you have probably been living in some kind of a virtual cave or have no friends. Digsby is a multi-network instant messenger application, similar to Trillian, Pidgin (GAIM), or Miranda. I said 'similar', so what makes Digsy special? Reviews I read so far don't give the real reasons and don't dive into the features in depth. Instead, you get a standard load of marketing BS and in the end to you, the user, Digsby may end up being "yet another IM program." Some reviews describe certain features, but so far I haven't seen one that highlighted THE MAIN REASON why Digsby is different. And may I preface it with: finally somebody got a clue. I never before wanted to write about any other IM client, which already indicates that on the "this is the most awesome meter ever" meter, Digsby is floating somewhere at the top. …