Categories
SysOps

How to determine which SSH public key was uploaded to the web service

Determine which SSH public key was uploaded to the web service.

Categories
SysOps

How to configure Hadoop topology mapping

Configure Hadoop topology mapping using TXT DNS records.

Categories
SysOps

How to display IP address in a more readable format

Display IP address in a more readable format.

Categories
SysOps

How to perform basic HDFS operations

Let’s perform basic HDFS operations.

Categories
SysOps

How to switch from Dropbear to OpenSSH on DietPi

Switch from Dropbear to OpenSSH on DietPi.

Categories
SysOps

How to display current mappings for encrypted devices

Display current mappings for encrypted devices (LUKS) .

Categories
SysOps

How to open LUKS2 encrypted volume on a low memory device

Open LUKS2 encrypted volume on a low memory device.

Categories
SysOps

How to clear Pi-hole audited domains list

Alter or clear audited domains list on Pi-hole instance.

Categories
SysOps

How to create Hadoop cluster

Create a basic Hadoop cluster to play with it.

Categories
SysOps

How to export block devices list as JSON

Export block devices list as JSON and parse using jq utility.