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August 2014

MobaXterm 7.2 Released

While I was away on that F5 Load Balancer I noticed MobaXterm 7.2 is now available.

I made use of that and PortableApps.com to get a familiar environment set up… :)

Cheers

Tim…


MobaXterm 7.2 Released was first posted on August 11, 2014 at 3:44 pm.
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F5 Load Balancer Training Course : Day 3

After the previous day’s “networky” stuff, day 3 was back to some stuff that was more relevant to me. Amongst other things, I got a quick primer on IPv6, which was pretty useful and we looks at iApps and iRules. It looks like I will be writing lots of iRules using TCL to replace the functionality of our Apache reverse proxies. Fun, fun, fun… :)

We finished at about 15:00, so I hit the road and managed to do the M25 and M40 in a reasonable time. It wasn’t good, but it could have been a lot worse.

The challenge now is to get to work on Monday and try to start putting some of this stuff into practice before I forget everything. :)

Website change

Just a quick note to let you know I’m changing the website over the next couple of days so if it disappears off the radar for a while that will be why. There’ll be some minor tweaking that I need to do after the change but all the pages, posts, comments and so on will […]

12c – Nested tables vs Associative arrays

This was going to the be the immediate follow up to my previous post, but 12.1.0.2 came out and I got all excited about that and forgot to post this one :-)

Anyway, the previous post showed how easy it is to convert between nested tables and associative arrays.  The nice thing in 12c is that this is no longer needed – you can query the associative arrays directly

12.1.0.2 security grrr…

One of my favourite security "tricks" used to be the following:

SQL> [create|alter] user MY_USER identified by values 'impossible';

Looks odd, but by setting the encrypted value of someone’s password to something that it is impossible to encrypt to, means you’ll never be able to connect as that account.  (Think schema’s owning objects etc).

I hear you ask: "Why not just lock the account?"

Well…in my opinion, that’s a security hole.  Let’s say Oracle publishes a security bug concerning (say) the MDSYS schema.  As a hacker, I’d like to know if a database has the MDSYS schema.  All I need do is:

SQL> connect MDSYS/nonsense

Why is that a security hole ?  Because I wont get "Invalid username or password".  I’ll get "ORA-28000: the account is locked" and voila…Now I know that the MDSYS user is present in that database.

Grid/CRS AddNode or runInstaller fails with NullPointerException

Posting this here mostly to archive it, so I can find it later if I ever see this problem again.

Today I was repeatedly getting this error while trying to add a node to a cluster:

Grid/CRS AddNode or runInstaller fails with NullPointerException

Posting this here mostly to archive it, so I can find it later if I ever see this problem again.

Today I was repeatedly getting this error while trying to add a node to a cluster:

Grid/CRS AddNode or runInstaller fails with NullPointerException

Posting this here mostly to archive it, so I can find it later if I ever see this problem again.

Today I was repeatedly getting this error while trying to add a node to a cluster:

F5 Load Balancer Training Course : Day 2

Day 2 was a lot more “networky”, so it was pretty tough. I got through all the labs and stuff worked, but if I’m honest I didn’t really have a clue what I was doing. :) Added to that, I won’t have privilege to do most of the stuff we covered when I’m on the real kit, so I’m pretty much going to forget it all in a few days. :(

Once again, it’s testament to the course that a complete networking gumby like me was able to survive the day.

Day 3 has got some sections that are more relevant to me. I’ve been swimming, so now it’s Monster, Diet Coke and Coffee for breakfast, check out of the hotel, then head off to start day 3.

Cheers

Tim…

Dawn of the Planet of the Apes

Today’s film was Dawn of the Planet of the Apes.

I really enjoyed the first film and this is a continuation of that story, set 10 years later.

The pacing on this film was pretty similar to the last one. If you are one of the people that found that too slow, you will have a similar experience this time. If, like me, you would prefer to watch the apes doing ape-stuff, rather than than seeing them going ape-shit, then this will work for you. There are action scenes, but a lot of it is movie time is them just ionteracting with each other and humans. It feels very “real” to me…

Cheers

Tim…