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Tunnelblick ovpn client for Mac os High Sierra

Tunnelblick ovpn client for Mac os High Sierra

This weekend I was playing around with Openvpn to a new site. I use Tunnelblick for this, but this time was the first time after I had upgraded my Mac to High Sierra (10.13.5). Suddenly my vpn connections didn’t want to load anymore. Tunnelblick threw these errors to me:

I was running a beta, so first thing was to install the stable release, but the message remained. This link: https://tunnelblick.net/cKextLoadError.html helped me. In high sierra to use or add modules…

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Building bridges: “Bridge must not have discovery mode for LACP interface; Interface file: bondeth0;”

Building bridges: “Bridge must not have discovery mode for LACP interface; Interface file: bondeth0;”

Some days start as an exatastic day and end up grasping your hair. This post is about such a day. A brand new shiny X7 Quarter Rack exadata was being installed for a customer. This setup was a fairly straightforward one. Quarter rack, full ovm and 2 virtual clusters. Not too fancy. LACP is being used for the public network on the fibers and vlan tagging is done on the switch. Given that, my customer created a OEDA configuration using…

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OCI-C orchestration error with load balancers

OCI-C orchestration error with load balancers

There are some of those days that you just don’t get it anymore. Last few days were like that for me. One of my current projects is to provide a fully redundant infrastructure in the Oracle Cloud for some critical applications. So I created the Database as a service with dataguard to another region, provisioned a vm (IAAS) for the webserver and tomcat and made some firewall rules. Check also my colleague Freek (you can find him here @dhoogfr ) his journey…

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LAB-time: upgrading Grid Infrastructure (GI) from 12.1 to 18c

LAB-time: upgrading Grid Infrastructure (GI) from 12.1 to 18c

First of all I like to start with telling you that this blog-post is intended only for testing, playing, learning,… things. It is not intended for production use and currently 18c is only available for Cloud and engineered systems environments. For on-premises availability check Mike Dietrich’s ( @MikeDietrichDE ) blog here: https://mikedietrichde.com/2018/03/20/when-will-oracle-database-18c-be-available-on-prem/ . There I like his sentence that I will quote: Anyway, for all the details and announcements, please see always the single-source-of-truth MOS Note: 742060.1 – Release Schedule of Current…

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Compute node disk expansion resulted in mount.ocfs2: Bad magic number in superblock while opening device /dev/sda3

Compute node disk expansion resulted in mount.ocfs2: Bad magic number in superblock while opening device /dev/sda3

Before Christmas 2017 I had the honour to expand the compute node storage for a virtualised exadata. Better said, OVM on exadata. This can be done for several reasons. The most logic one, also the reason why this customer bought the disk expansion, is that you want to create more virtual machines and you have ran out of space on /EXAVMIMAGES. The preparation is actually pretty simple. It is documented completely in the Exadata Database Machine Maintenance Guide. And look,…

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Exadata ovm creation: Second argument is not defined: bondeth_mode

Exadata ovm creation: Second argument is not defined: bondeth_mode

There are some days which start as exatastic days and end up at Oracle Support. This blogpost is (hopefully) one with temporal validity. I know that’s a 12c feature as well, but that’s another story. The error which I’ll discuss here, will tell you about the “Second argument is not defined: bondeth_mode” error in the domu maker logfile. A while ago, one of my customers asked me to extend one of their exadata’s with 2 extra compute nodes, make sure…

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Can’t locate Term/ReadKey.pm in @INC during catcdb.sql in 12.1.0.2

Can’t locate Term/ReadKey.pm in @INC during catcdb.sql in 12.1.0.2

During some playing around with database creation on 12.1.0.2 using several methods, Geert De Paep (find him at @geertdepaep) and I discovered something funny. Creating the database using dbca, works as expected. But then it was time to create a container database using the create database statement. The best thing to do is follow the official oracle documentation. Find it here: http://docs.oracle.com/database/121/ADMIN/cdb_create.htm#ADMIN13529 all steps are normal until running the catcdb.sql-script. When running it from a oel6.5 with a default (non-patched)…

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