Today at dbi services, with my colleague Chay Te and Arjen Lankkamp, we attended to the KCD in Zurich. First occurrence of the Kubernetes Community Days organized in Switzerland, the KCD Zurich hosted 250 participants. The previous day was devoted to technical workshops, while the following day was spent on general sessions and talks. This event, which took place at…
Oracle offers a number of methods to migrate Oracle databases to the Oracle Cloud Infrastructure (OCI). From Data Pump through RMAN, Data Guard and even Golden Gate there should be a solution for just about everyone. However, most of these managed migration services require that the source system is running Linux. So what do you do when you’re running Windows?…
For some internal DMK (https://www.dbi-services.com/fr/produits/dmk-management-kit/) development I had to configure a SMTP relay on my VM. Purpose of the SMTP relay is to send the email locally from DMK without any authentication. This Email will be transferred to the SMTP server created by one of my colleague on our AWS Cloud. This SMTP server is of course using authentication. To…
This blog describes the setup of a Consul Cluster on RHEL 8 and clones, it will be the base for a Patroni HA setup using RPM Packages from postgresql.org. Many Patroni setups are using ETCD, but ETCD is not available as RPM out of the box for RHEL 8 and clones, and in many cases using tar files or RPMS…
This Blog describes the Migration from CentOS 8 to Rocky Linux 8. And hopefully there is a backup or VM Snapshot in place when something goes wrong. At first Updating CentOS 8 to the latest is required, but this is now not so easy, most Repositiory Mirrors are deprecated. As Preparation an adaptation of the CentOS Repo files is needed…
In our blogs we already talked about Migrating a CentOS 7 EC2 instance to Rocky Linux 8 and CentOS 8 machine to Red Hat 8 , but how does it look like if you want to migrate your CentOS8 machine to AlmaLinux 8? Indeed it is as simple as migrating from CentOS7 to Rocky Linux or to Red Hat 8,…
Many installations have a history of many major PostgreSQL releases. With PostgreSQL 10 comes scram-sha-256 for hashing passwords, by installing from packages scram-sha-256 is the default setting for new installations since PostgreSQL 13. With this small blog I will describe how to update password from md5 to scram-sha-256. For the installation of PostgreSQL there are many blogs at dbi or…
Some time ago I’ve written about migrating a CentOS 8 machine to Red Hat 8, because CentOS 8 reached end of life last December. We did that for all CentOS 8 installations at that customer and all are running as virtual machines. The very same customer has many EC2 instances running on CentOS 7. Migrating away from CentOS 7 is…
Your may want to patch your Linux servers on a regular basis (e.g using “yum/dnf update”). As always, it’s obviously recommended to : 1) Patch the TEST systems 2) Check if there is no side effects 3) Wait few days or weeks 4) Patch the PROD systems The problem here is that between step 1 and 4 above, a new…
We have quite a few customers still running on CentOS 8 and you probably already are aware that CentOS 8 will be end of life by the end of this year. This forces a lot of companies to either switch to an alternative or to stick with CentOS stream. For most enterprise workloads CentOS stream is not a solution as…
Debugging errors when working with ODA is not always the easiest thing do… 😛 It may become a bit tricky and not a straightforward process. In this blog I wanted to show you and example we faced with the debugging of a Dbsystem creation failure and how we found out the real reason it failed. Before starting let’s do a…
This Blog is a follow up uf one of my older Blogs and my Article at heise.de: Blog at dbi-services.com Article at heise.de For RHEL 8 at its clones like AlmaLinux, CentOS, Oracle Linux and Rocky Linux i have written a shell script to automated recurring setups. This is used for a cloud project using own virtual machines. The script…
