Tag: articles

Life Update : The first rule of Oracle Games Console…

Life has been a little quiet on the publishing front recently. You may have noticed I’ve not posted many new articles or blog posts of late. This situation is likely to continue for some time, and I thought I would drop a post to let you know why…

I’m currently spending most of my time playing with a certain beta product, and all of that is covered by a non disclosure agreement (NDA). Over the last few weeks I’ve written a bunch of articles, but I can’t hit the publish button on them yet. Over the coming months I’ll continue to write new articles and give feedback to Oracle, but of course you will not be seeing any of this.

Once the product goes live I’ll be able to release all this stuff, with the obligatory edits/rewrites to take account of the changes between the beta and live versions of course. The total amount of content will be no different in the long run, but there will be a baron period for a few months followed by a glut of content. I suspect this situation will be similar for a number of folks in the Oracle community.

The rules are a bit different for Oracle employees, so you will be seeing teasers for new functionality from them, but not from the rest of the community…

Over the next few months I’ll mostly be posting memes and “from the vault” links on social media, just so you don’t forget I exist, but it is going to be a relatively quiet time…

Cheers

Tim…

Oracle Database 21c : Installation Articles, Vagrant and Docker Builds

As you have no doubt heard, Oracle database 21c was released on Friday. I went to work over the weekend doing the relevant articles and builds. They’ve been on the front page of the website since Sunday, but I was waiting for the release of the 21c preinstall package before announcing them. That has arrived now, so this is what I was up to at the weekend.

Installation Articles

First the articles for single instance, Data Guard, RAC and RPM installations.

Vagrant

There are a bunch of associated Vagrant builds on Oracle Linux 8 and 7.

Single instance database installs, using the conventional installation method, and the RPM installation.

Data Guard installs.

RAC installs.

Docker

There are two database builds for 21c database in containers.

Caution

As I wrote in my previous post, Oracle 21c is an innovation release. It’s good to play with this, but be careful when considering it for production.

Cheers

Tim…

PS. I’m struggling to notice the difference between “21” and “12” when reading at the moment. 🙂

Some new Oracle Database 12c Articles

I’ve recently put some new Oracle 12c articles on the website.

The privilege usage stuff is really cool. Normally, trying to figure out what you can remove from a user is always a complete pain in the ass. Some of the databases I’m currently working with have used GRANT like it’s going out of fashion. Trying to identify what is really necessary is a tough job. Features like this are going to be hard to wait for…

Cheers

Tim…

 

Another batch of Linux articles (RHCSA)…

I’ve just put another batch of Linux articles live.

As before, they are focussing on the RHCSA exam objectives, so a lot of it is pretty basic information.

The Firewall and SELinux objectives are the only ones left now. These two objectives were the main reasons I decided to start this process. I left them until last because I figured if I started with them, I might never get round to doing the other articles. 🙂

As far as the Linux firewall goes, if it can’t be done with the point and click GUI (or TUI), I don’t do it, so taking a look at iptables from the command line has been on my list for a very long time. The RHCSA objective suggests using the GUI/TUI interface should be sufficient, since it says, “using system-config-firewall or iptables”. In contrast, the RHCE objectives explicitly mention iptables, possibly suggesting tasks that may not be possible from the GUI? The question is, how much do I trust my own judgement on this matter? I would prefer go in to the RHCSA exam with too much information, rather than not enough, so I guess I’ll take a look at iptables from the command line before attempting the RHCSA exam.

I know even less about SELinux than I do about the firewall. For Oracle installations I typically disable it. 🙂 So I guess this objective is going to be a magical mystery tour. 🙂

If anyone has sat the RHCSA exam for RHEL6, I would be interested to hear your thoughts on the Firewall and SELinux objectives. I think I’ve got a pretty good handle on the other objectives, but I’m kinda shooting in the dark with these two. It would be a shame to waste £400 on a failed exam. 🙂

Cheers

Tim…