Oracle Cloud Infrastructure and SSH Keys – Jump!

Jump! In our Trivadis Oracle Cloud Infrastructure training environments, we never use direct access to an application or database server by a public IP address. For this case, we use an Oracle Linux based bastion host which acts as a jump host. For security reasons, I never put any SSH keys on a bastion host to connect from there to the target instances. If your bastion host is compromitted, your SSH keys are lost! In one of the last trainings,…

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Oracle Cloud Infrastructure – Stop your 20c Preview Database Instance Node by OCI CLI now – Great MOS Experience

This was really great experience with the guys from My Oracle Support and Oracle teams. Seven days ago I raised an SR that there was no possibility to stop a 20c Preview database instance node if it’s not in use. No chance to stop a 20c Preview Instance There was no stop action in the Oracle Cloud Infrastructure UI and not in OCI CLI. The only way was to terminate an 20c preview instance. If I tried to stop a…

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Oracle Cloud Infrastructure – Network Troubleshooting with VCN Flow Logs

Do have a problem with a connection from or to your private/public subnet? There is a new functionality called VCN Flow Logs available. It collects information about network traffic (source/target) in the Oracle Cloud Infrastructure VCN subnet. At the moment (05/03/2020), this functionality is not available in all regions and I did not find any command in OCI CLI, but will be rolled out. There is no documentation available at  docs.cloud.oracle.com. Link to the OCI blog announcement and demo: https://blogs.oracle.com/cloud-infrastructure/announcing-vcn-flow-logs-for-oracle-cloud-infrastructure…

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Oracle Enterprise Manager 13c Release 4 – Time to Upgrade – First Experiences

The roll-out of the newest Oracle Enterprise Manager 13 Release 4 is a few days old, about time to try out the upgrade process in my ESXi lab environment. First: This blog post about the OEM upgrade process is based on my own experience. Software https://www.oracle.com/enterprise-manager/downloads/cloud-control-downloads.html Documents https://docs.oracle.com/en/enterprise-manager/cloud-control/enterprise-manager-cloud-control/13.4/emupg/index.html The Environment Oracle Enterprise Manager 13.3 running on Oracle Linux 7.6 – OEM Patchlevel January 2020 – Non-HA Oracle Enterprise Edition Repository 19.6.0 Single Tenant Database  Oracle Restart / ASM 19.6.0 Additional…

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Oracle Cloud Infrastructure – Change a Compute Instance Shape – Tested

There is a new feature available in Oracle Cloud infrastructure since the 13th of January 2020, now you can change the shape of a Compute instance. It replaces all the manual steps like stopping the existing instance, create a new one, attach the block device etc. – this is a short summary how it works. From the OCI Release Notes : You can change the shape of a virtual machine (VM) instance without having to rebuild your instances or redeploy…

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