IT infrastructure and architecture

This example shows the use of 'loops' in terraform to create three linux servers, each with its private IP and its public IP, the three servers belonging to a 10.0.0.0/

First of all, this example is made in CentOS 8, and it should not vary from one Linux distribution to another, it even works the same without problems in Windows or macOS.We

Before logging in with the Azure CLI to an Azure tenant, we must see which Azure subscriptions I have associated with the current computer and user:az account list which, in the case

There are several ways to grant sudo ability to a user in Ubuntu, such as:sudo usermod -a -G sudo jlsv This command adds the user 'jlsv' to the 'sudo' group.It can

First we execute the following to refresh the available packages from all the repositories:sudo apt-get update We install the necessary packages for Azure CLI (azure-cli):sudo apt-get install ca-certificates curl apt-transport-https lsb-release

The first thing is to execute:yum update We check the current repositories in the operating system to see if there is the Hashicorp repository with the command:yum repolist which should contain

To view the content of a keystore in the form of PKCS12 run the openssl command as for example on the truststore of an installation of Directory Services (evolution of openDJ) of ForgeRock:

When you change the linux /etc/environment file where the general environment variables for all sessions are specified, it can be executed to load the new definition of the file into the session

Open Power shell with administrator elevation, and run the following to install it:Add-WindowsCapability -Online -Name OpenSSH.Server* Then we start the service:Start-Service sshd We specify that it starts automatically on each

Booting your Mac has the following key configuration options to boot in different modes by first pressing the Mac's boot key, except in cases where it is indicated not to, and immediately press

To install Windows 10 on a MacBook PRO model A1398 with Intel processor without macOS installed is easily from a USB Flash recovery of a Windows 10, in my case in a Lenovo

I detail the actions to perform to install the macOS High Sierra 10.13 on a MacBook PRO model A1298 with micro Intel, from a bootable USB flash that I prepare in a

In the latest distributions of ubuntu 18.04 and 20.04 that I used have activated the sysemd-resolved that I do not like at all, especially for not allowing me a more particular

To manage authentication to ssh or sftp services I always do it through ssh keys, and I usually generate them with the following ssh-keygen command:ssh-keygen -t rsa -b 4086 -C usersftp@localhost

In the repository of the official list of versions in githab:https://github.com/docker/compose/releasesthere are no versions for armhf. Well, I haven't found them.Therefore, to install docker-compose on a

Run the command:sudo apt install docker.io Once installed we check the version:docker --version Which in my example returns:operatorvm@vmrp01ubuntu2004web:~$ docker --version Docker version 20.10.2, build 20.10.

With a root user or with sudo privileges execute the following:sudo adduser username sudo Example:ubuntu@vmrp01ubuntu2004web:~$ sudo adduser operatorvm sudo Adding user `operatorvm' to group `sudo' ... Adding user operatorvm to group

In this entry we will see how we create a user on an Ubuntu OS 18.04.3 LTS armv71 on a Raspberry Pi 2 Model B+ that can only access a specific

I am going to detail the backup recommendations to follow on a Windows 10. They are logical recommendations that can be followed in the same way on other operating systems like Ubuntu or

Today I encountered the following error that prevented me from deploying the jBPM application to the JBoss Wildfly 19.1.0 server in the business-central.war drop-down:22:04:40,186 INFO [org.

In this entry I detail how I managed to fix this problem that I have had in CentOS 8: 'Metadata corruption detected at xfs_agi_verify. Unmount and run xfs_repair. First 128

This entry details the implementation of a CDC (change data capture) of a Hana database table using triggers at the source database layer to identify the insert, update, and delete changes to that

The TTY console in Ubuntu 18.04.3 is 800x600 by default and it is too small for the use of my virtual machines in VirtualBox where I have them open to see