Sometimes disks have errors or an SSD disk has a bad NAND cell. Saving the whole hard disk data may not be needed and when…
Change the location of container storage in podman (with SELinux enabled)
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…
Software and technical overview of Ubuntu 20.04 LTS server edition
Ubuntu 20.04 LTS server edition offers the following software and versions: Software linux kernel – 5.4.0 – 5.4.0-29-generic System linux-firmware – 1.187 libc – 2.31…
Minimal installation of Ubuntu server 20.04 LTS
This tutorial will show you the simple steps of installing a modern Linux Distribution – Ubuntu server 20.04 LTS edition. Following most of the default…
Data too large, data for [] would be [] which is larger than the limit of
Rsyslog writing to Elasticsearch could lead to an error for some of the records and missing to save them in the backend: Unfortunately, such writes…
collectd nginx plugin: curl_easy_perform failed because of selinux
Enabling the Nginx plugin for collectd under CentOS (or any other system using SELinux) might be confusing for a newbie. Most sources on the Internet…
aptly remove a package from a repository using the cli
Here is a fast tip – how to remove a package from our local aptly repository: Remove the package from the local repository. Create a…
Kibana server is not ready yet – and Waiting for that migration to complete in the logs
Now, living in the cloud and big data there is a time when the admin may need to save all their logs in a central…
Cron missing path – executing docker/podman – adding network: failed to locate iptables
If you have ever happened to execute some complex scripts using the cron system you were inevitable to discover the Linux environment was different than…
lvm2: remove unknown physical volume device in a logical volume with a caching using vgreduce
Following the article SSD cache device to a hard disk drive using LVM the initial setup is: Single slow 2T harddisk. So no redundancy. If…