IT infrastructure and architecture terraform - loop example creating three linux virtual servers on Azure 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/
IT infrastructure and architecture terraform - first steps: creating a linux virtual server en Azure 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
IT infrastructure and architecture How to sign in with the Azure CLI and manage associated subscriptions 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
IT infrastructure and architecture How to sudo a user in Ubuntu... and how to remove sudo from the user 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
IT infrastructure and architecture How to install Azure CLI (package azure-cli) on Ubuntu 22.04 on WSL Windows 10 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
IT infrastructure and architecture How to install terraform on CentOS 8 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
IT infrastructure and architecture How to view the contents of a keystore pkcs12 with openssl, case truststore Directory Services of ForgeRock 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:
IT infrastructure and architecture How reload /etc/environment without reload linux or restarting session 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
IT infrastructure and architecture How to activate and configure ssh server in windows 10 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
IT infrastructure and architecture Key combination on MacBook Pro with Intel processor for booting 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
IT infrastructure and architecture How to easily install Windows 10 on a MacBook Pro 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
IT infrastructure and architecture How to install a macOS High Sierra from scratch on a MacBook Pro 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
IT infrastructure and architecture How to disable systemd-resolved in linux ubuntu 18.04 and 20.04... and how to ensure that your resolv.conf does not update on each reboot 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
IT infrastructure and architecture How to export a private key to RSA PEM format with ssh-keygen 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
IT infrastructure and architecture How install docker-compose on ubuntu 20.04 armhf in Raspberry Pi 3 B 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
IT infrastructure and architecture How install docker on ubuntu 20.04 armhf in Raspberry Pi 3 B 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.
IT infrastructure and architecture How to make a user sudo in ubuntu 20.04 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
IT infrastructure and architecture How to create a user on Ubuntu 18.04.3 LTS armv71 on Raspberry Pi 2 Model B+ encapsulated to only access by SFTP 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
IT infrastructure and architecture Backup recommendations in Windows 10 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
IT infrastructure and architecture How fix error Impossible to lookup any SSHKeyStore named instance: org.jboss.weld.exceptions.WeldException: WELD-000049: Unable to invoke public void org.uberfire.ssh.service.backend.keystore.impl.storage.DefaultSSHKeyStore.init() in jBPM KIE Server 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.
IT infrastructure and architecture How to fix error when booting Ubuntu 20.04 UNEXPECTED INCONSISTENCY RUN fsck MANUALLY On a laptop with Ubuntu 20.04 without battery after having a power outage I had the following error when booting:blk_update_request: I/O error, dev sda, secto 1871712792 op 0x0:
IT infrastructure and architecture How to fix CentOS 8 boot error: Metadata corruption detected at xfs_agi_verify. Unmount and run xfs_repair 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
IT infrastructure and architecture How to implement a CDC (change data capture) of a database Hana table using Apache Kafka and the kafka-connect-sap connector in incremental mode to a PostgreSQL database 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
Development How to allow access to the jBPM Git repository from a network interface other than localhost The jBPM 7.43.1 Git repository only serves localhost by default. If you have the jBPM server on a machine other than where you are developing, it is required to enable this
IT infrastructure and architecture How to change display resolution in TTY console 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