SLES

Use a expired SLES with OpenSUSE repositories

Last week, I hit a wall when my SUSE Linux Enterprise Server license expired, stopping all repository access. Needing PostgreSQL urgently, I couldn’t wait for SUSE to renew my license and had to act fast.I chose to disable every SLES(…)

Updating SUSE/ SLES the right way

We all had that time where we needed to upgrade a ages old system that was running for years without any interruption. This sometimes can be quite tricky and take some time and nerves to do correctly. But since SUSE(…)

SUSE Manager installation

In this Blog I will write the requirements and steps to install SUSE Manager Server. Maybe you heard about SUSE Manager but you could not understand why a SUSE Manager Server (SUMA) can help to manage your(…)

CentOS 8 alternatives

Many people are unhappy about the decision from the CentOS Board of Directors, to switch from fix releases to Stream and cutting the support date from 2029 to 31st of December 2021 for CentOS 8. Many applications in productive environments(…)

Upgrading from OpenLeap to SLES15

Sometimes business plans change and maybe you need to move your OpenLeap 15 Server to the supported version SUSE Linux Enterprise Server 15. Upgrade is getting really easy with version 15. It can be performed online. So your server does(…)

ORA-12547 TNS lost contact on SLES12 and oracle 11.2.0.x

On a client’s site, I have migrated successfully Oracle 12c databases from RedHat to SLES12 without any problem. I encountered a problem doing the same work with Oracle 11.2.0.3 and oracle 11.2.0.4 on SLES 12. Once I have moved the(…)

Going from SLES12 SP2 to SLES12 SP3, online

SLES 12 SP3 was released some time ago and as we have customers running on that I thought it might be a good idea to test the upgrade from SP2 to SP3. Actually it turned out this(…)