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January 16, 2021

VBoxManage: error: Failed to initialize COM! NS_ERROR_FILE_TARGET_DOES_NOT_EXIST (0x80520006)

VirtualBox

What an error! And the VirtualBox stopped loading anymore! This error: and here with the GIU, which offers a little bit more information about the…

neoX
October 1, 2020

starting Hashicorp vault in server mode under docker container

hashicorpvault

Running Hashicorp vault in development mode is really easy, but starting the vault in server mode under a docker container may have some changes described…

neoX
September 30, 2020

Add cachecade SSD to an existing virtual drive in AVAGO MegaRAID with storcli64

storcli

Increase the IO performance of big storage consisting of hard drives with the CacheCade feature with MegaRAID hardware controllers. Here are the commands to ensure…

neoX
September 19, 2020

Using xtrabackup to make fast MySQL backups – backup and restore

Linux, MySQL

Percona provides a really interesting tool for MySQL backups! It works on a live running MySQL server by copying the MySQL binary files from the…

neoX
September 16, 2020

gitlab in podman cannot create unix sockets in glusterfs because of SELinux

CentOS 7, gitlab, glusterfs, podman

Installing gitlab-ee (and gitlab-ce) under CentOS 7 with enabled SELinux (i.e. enforcing mode) looped endlessly the container in restarting the installation process! There were multiple…

neoX
August 29, 2020

syslog – UDP local to syslog-ng and send remote. Forward syslog to remote server.

HowTo, Linux, syslog-ng

After writing an article for the rsyslog daemon about forwarding local UDP logging to a remote server using TCP – UDP local to rsyslog and…

neoX
July 21, 2020

storcli with multiple disks from different enclosures

console, Linux, storcli

Creating a Virtual device with the AVAGO storcli command-line tool under Linux. Two examples are included: All disks are from one of the enclosure. All…

neoX
July 10, 2020

aptly delete a mirror and remove all files

aptly

Executing drop command on a mirror will only remove the meta information for the mirror and it will not remove the package files occupying space…

neoX
June 16, 2020

edit mysql options in docker (or docker-compose) mysql

Docker, MySQL, podman

Modifying the default options for the docker (podman) MySQL server is essential. The default MySQL options are too conservative and even for simple (automation?) tests…

neoX
May 30, 2020

Change the location of container storage in podman (with SELinux enabled)

podman

There two main options to change the location of all the containers’ storages: “mount bind” the new location to the default storage directory (look Note…

neoX

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