Sunday, September 22, 2013

The event has started

Oracle has been an industry leader for decades already, the two key factors, innovation and aquisitions have been the elements that Larry Ellison has known well how to manage. Oracle (ORCL) is a company who has the complete set of products, ranging from Hardware, Operating System, Database, Middle Tier, and Applications.  The product list every year grows and keeps on growing to the point that it's becoming difficult to even number them.  
The database features every new release are increased, over 100 new fetures can be listed every new major release.  
The Oracle Open World is the main Oracle event that shows the trends, new products, where partners, customers and peers converge to exchange knowledge, show new products, and where Larry Ellison unveils new surprises.
The name of the event is where you can get an idea about what will be the main attraction of the Oracle Open World.

This #OOW13 is about "Hardware and Software Engineered to Work Together".  The trend since Oracle aquired Sun a few years ago has been to make the hardware work with the software, a home made whole system under a single name.  Nobody in the industry has the same capability to offer the complete set at the high end level under a real single brand, but Oracle.

Tuesday, September 17, 2013

OpenSSH failed to add the hosts to the list of known hosts

Error message:  OpenSSH failed to add the hosts to the list of known hosts

Workstation: Windows 7 x64 Authenticated with domain server
OpenSSH: OpenSSH for Windows v3.8.1p1-1 x64

This issue has been going on for a while in my machine, what is boring is that every time I try to log on to any of my Linux servers the same message appears, asking for confirmation and then showing the error, which prevents me from performing batch tasks and scripts from my workstation against the Linux servers. 

The way to solve this basically has to do with an environment variable that has to be declared, OpenSSH doesn't know the value of $HOME, which is equivalent to the %USERPROFILE% windows variable. So it has to be declred.

Set a Windows User environment variable named HOME that points to the %USERPROFILE%:
  1. Open the Control Panel > System and Security > System
  2. Click on the Advanced System Settings
  3. Click the Environment Variables
  4. In the User variables box click on the "New" Button
  5. Declare a variable named HOME and set its value to %USERPROFILE%
  6. Accept and click OK
Open a new DOS windows and retry, this time instead of the error you should see a warning letting you know the host has just been added:

C:\Users\HMadrid\.ssh>ssh oracle@myHost

The authenticity of host 'myHost (192.168.XX.XX)' can't be established.
RSA key fingerprint is xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'myHost,192.168.xx.xx' (RSA) to the list of known hosts.
oracle@MyHost's password:
Last login: Mon Sep 16 17:33:58 2013 from 192.168.xx.xx
[oracle@stwrac1 ~]$ exit

Connection to myHost closed.