Categories
SysOps

How to use tmpfs for temporary directory

How to use tmpfs for temporary directory (/tmp).

Categories
SysOps

How to resize live tmpfs filesystem

Resize live tmpfs filesystem.

Categories
SysOps

How to align simple MariaDB output

Use column utility to align simple MariaDB output like variable list.

Categories
DevOps

How to inspect and improve docker image using dive utility

Inspect and improve docker image using dive utility for exploring each layer in a docker image.

Categories
DevOps

How to install and configure a Kafka cluster without ZooKeeper

Install and configure a Kafka cluster without ZooKeeper to play with it.

Categories
DevOps

How to generate Kafka cluster ID

Generate Kafka cluster ID for Kafka Raft metadata mode.

Categories
SysOps

How to relay all mail to external account

Relay all mail to an external account which can come in handy in your lab environment.

Categories
SecOps

How to protect Samba DNS server against DNS zone transfer

Debian Bullseye currently provides Samba 4.13.5. Using BIND as Samba Active Directory DNS backend opens it to the DNS zone transfer.