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December 2011

SSH root attacks on the rise

This is not directly Oracle related, but probably still of interest.

SSH Password Brute Forcing may be on the Rise

Out of curiosity I pulled the ssh login attempts from /var/log/messages an internet facing server, and the data  corresponds to what was shown in the article.

What was interesting was that all ssh attempts that I saw were for root.  In the past when I have looked at these there are a number of different accounts being attacked, but now the attacks are all for root.

UKOUG 2011: When sessions attack…

Just finished my session. What a nightmare…

I was surprised anyone turned up as it was a late change to the schedule and there were some great sessions going on at the same time. Check out the photo.

It was kinda OK, until I got to the demo, which I screwed up. That was really disappointing because it really was the crux of the session. I thought I saw the issue and tried to salvage it, but it failed again so I gave up and moved on. I would like to say it was an OK recovery from a disastrous demo, but that would be a lie. Flipping crap.

I’ve Been Made an Oracle Ace.

I tried to come up with a witty title but after only first day at the UKOUG conference, OakTable Sunday, my brain is already a little fried…

So yes, last Friday evening I received an email from Oracle Corp informing me I had been nominated for and been accepted as an Oracle Ace. I’d just accidentally blown away some of my slides for a presentation I’m giving this week and I was a bit weary of the whole community thing, so it gave me a real lift. It would have given me a lift anyway, but the timing seemed very nice – it re-invigorated me and it also meant that I could now mention my Ace-dom at conference. Endlessly. I never won prizes at school so this sort of thing goes to my head. Sorry.

UKOUG 2011: Day -1

I missed the OakTable day because it was the 10th birthday party of nephew number 1, but I did make it back to Birmingham in time for the ACE dinner. Mark Rittman provided evidence of my presence here. I was already full of cake and trifle before I arrived, but the waitress didn’t seem to understand, “I’m not eating”, so I was *forced* to stuff myself again. :) Many thanks for the organizers of this event.

My UKOUG 2011 appearances

I’m just sitting in the airport, waiting for my Birmingham flight and it’s probably time to mention when and where I’m hanging out too:

Monday

Tuesday

Gwen Shapira on SSD

If you haven’t seen Gwen Shapira’s article about de-confusing SSD, I recommend that you read it soon.

One statement stood out as an idea on which I wanted to comment:

If you don’t see significant number of physical reads and sequential read wait events in your AWR report, you won’t notice much performance improvements from using SSD.

I wanted to remind you that you can do better. If you do notice a significant number of physical reads and sequential write wait events in your AWR report, then it’s still not certain that SSD will improve the performance of the task whose performance you’re hoping to improve. You don’t have to guess about the effect that SSD will have upon any business task you care about. In 2009, I wrote a blog post that explains.

UKOUG: I’m now speaking on Monday…

A couple of slots opened up in the UKOUG schedule due to cancellations and a message came through the OakTable mailing list asking if anyone could fill them. Alex Gorbachev and myself stepped up to the plate.

This means I’m now speaking about Clonedb on Monday at 11:05 in the Media Suite. See here.

The downsides to this are:

Stored Outlines (Plan Stability) are an Enterprise Edition Feature? A Self-Conflicting Story

December 2, 2011 An innocent question was asked in an OTN thread regarding the availability of plan stability options in the Standard Edition of Oracle Database.  If we check the documentation for the latest release (11.2.0.x) of Oracle Database, we will find the following statement: “The use of stored outlines is deprecated in Oracle Database 11g [...]

Fasthosts : Your technical support isn’t technical or supportive..

The first draft of this post was rather explosive, containing many expletives and could probably have landed me in jail on some trumped up charges. This is the more moderate version.

To cut a long and boring story short, I made a change to my hosting package today, which suggested it was an administrative change, rather than something physical. The fact it transferred my whole site to another server is annoying, but if I had bothered to read the 3000 pages of T&Cs it would probably have become obvious.