IT hands-on

Syslogd gathers log messages coming from different system and user processes. These logs end up in the different subdirectories of /dev/log .  Within Sys

Systemd uses .service files to get information about how to start processes, independencies and other parameters. We will create a service file called

To diagnose a slow starting system, we could use a systemd tool called -  systemd-analyze - as follow: It shows us the list of processes that start at b

To list the services running on a system using the systemd commands, we could use the below command: Our services displayed above could have one of the

To be able to host a running applications on the cloud , we have many options. Our first option is IaaS - Infrastructure as a Service -, where by, the c

The below example will list all the files that start with a letter, has a digit and ends with an underscore: The below example will match any file star

To start using a different existing account in Linux , we could switch to another user through the below command: We switch to a user_name , but we keep

We have a partition -  /dev/sda2  - that we want to mount on the mountpoint - /media/backup - as below, but we get a error message: The below command tell

LVM - logical volume manager - offers up the flexibility: to grow a storage space to have a storage space that can spam multiple disks to combine several

A service mesh is the software that connects services and containerized applications that are running as pods . It also manages traffic control, the di

<b><i> Bock storage:</i></b> Bock storage manages data in blocks that are accessed using the iSCSI protocol for example. The end user accesses  block storage over the n

Below is a simple diagram that depicts the types of storage: <b style="text-align: left;"><i><b style="text-align: left;"><i></i></b> NAS - Network Area Network:</i></b> In file storage - NAS -, the computation overhead is embedded w

Below is a simplified diagram of the boot process of a Linux system: <i> Remark:</i><i></i> The UFEI is the new version of the BIOS and the GPT is the new version of t