Wednesday Jul 06, 2016

Always fill in the DNS Hostname Prefix in Oracle Compute Cloud Instance

Always fill in the DNS Hostname Prefix when creating a new instance in Oracle Compute Cloud.


What seems an unimportant optional field can make your life harder than it should be, namely your instance will get a new hostname and new server ssh key each time the instance orchestration is restarted, which leads to confusion and problems. Here’s why that happens:


Each instance is governed by Instance Metadata. There is actually a server available to your instance on the internal network, where Metadata is available. Among other things, the Metadata contains server DNS name.

Here’s the important part: if you leave DNS Hostname Prefix field empty, then DNS name is dynamic, auto generated each time the instance orchestration is started (but not when instance is rebooted).

On your instance, there’s also /usr/bin/opc-linux-init script started by /etc/rc.d/rc.local, at least if your instance is based on one of the predefined Oracle images.

This script checks if the hostname is the same as the one provided by the Metadata - and if it’s not, it changes the hostname, server ssh keys and possibly other instance configuration.


There are probably not many scenarios when you want your instance to be reconfigured on each start, so remember to configure DNS Hostname Prefix when you create it. If you need to update one of your existing instances, add "dns" : [ „yourhostname“ ] to the instance networking configuration.



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Monday Jul 04, 2016

Persistent storage in Oracle Compute Cloud (IaaS)

Oracle Compute Cloud Serviceoffers a dedicated compute with predictable performance and network isolation.

Rapidly provisioned virtual compute environment to run applications at scale on the Oracle Public Cloud with predictable, consistent performance and network isolation.

Still, there seems to be some inconsistent behaviour of Oracle Compute cloud service at the moment. It could happen that the storage you create through Create Instance wizard is nonpersistent, but the solution is simple.

[Read More]

Monday Apr 04, 2016

Oracle Cloud Machine - Move the Cloud to your Data Center

While public cloud computing would make a significant difference in your business, handing the governance and control to someone else isn't always simply an option. The cloud is generally perceived as being “out there”—somewhere in the ether chugging away at its computing chores.

But what if you could turn cloud computing inside out—bring its speed, flexibility, and ease of use right into your data center?

[Read More]

Wednesday Mar 02, 2016

Oracle Infrastructure Cloud Partner Briefings

Oracle Infrastructure Cloud 

Webcasts - Partner Briefings

The Oracle team is pleased to invite you to a set of important Partner Briefings focused on Oracle Cloud Infrastructure as a Service (IaaS) itself and usage with Oracle E-Business Suite, PeopleSoft and JD Edwards EnterpriseOne

[Read More]

Friday Nov 20, 2015

The next big thing in Cloud Computing

oracle-openworld-sf-2015-the-secure-cloud-larry-ellison-executive-chairman-and-chief-technology-officer-oracle-30-638

How many times has it happened to you, that you were discussing a Cloud Solution or a Cloud Strategy with a customer, only to face objections which seemed to have built a brick wall between you?

Well, that shouldn't be the case any more! Enter Oracle Private Cloud Machine for IaaS and PaaS...

[Read More]

Tuesday Nov 17, 2015

New IaaS, PaaS and SaaS Cloud Implementation Workshops scheduled from now until May 2016

There is a new series (more than 90!) of SaaS, PaaS and IaaS Cloud Workshops available from now until May 2016 and remote participation is possible for most of them! The workshops are free, hands-on training, delivered by development experts![Read More]
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