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
Bugs and errors fix How to fix Microsoft Office hyperlink problem with errors "Cannot locate the Internet server or proxy server" and "Cannot open the specified file" In some Microsoft Office installation sometimes when you press Ctrl+click on hyperlinks you get the error message "Cannot locate the Internet server or proxy server" (in Spanish the message that appears is
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.
Development How to implement an angular custom pipe in a JHipster application Let's detail the steps to create a custom pipe in a JHipster 6.10.5 application with angular 10.0.0.We will define a pipe that converts a string into a kebab-case
Development How fix errors "No X11 DISPLAY variable was set" and "An error occurred: Can't connect to X11 window server using 'x.x.x.x:0.0' as the value of the DISPLAY variable" in ssh sesion with X11 forwarding I use Windows 10 as a working operating system but almost all the development operation and system architecture is done through Ubuntu and CentOS computers that I access by ssh, VNC or RDP
Development How to install kubectl with multiple versions to be able to manage different versions of kubernetes cluster with update-alternatives on ubuntu 20.04 I work with several clusters of kubernetes and each of it is of a specific version, therefore I need to have different kubectl. To manage this what I do is access https://github.
Security How fix error could not verify 'ssh-ed25519' host key In some integrations with SFTP, for example from NIFI, I have often encountered the following error message:ListSFTP[id=a9f3e106-0177-1000-2137-90dcc74fc40e] Failed to perform listing on remote host due to Could not verify 'ssh-ed25519'
Development Avoiding unexpected errors: sudo with meta characters like asterisk, question mark and others When a command is executed with 'sudo' the metacharacters except the $ are escaped. This causes that command like the following that we think should work correctly gives unexpected problems:sudo ls -t /etc/
Development How to add to apache2 on Ubuntu 20.04 a new site configured to avoid cross domain errors using ProxyPass and ProxyPassReverse In apache2 on Ubuntu, for example 20.04, if you want to add a new site or configuration for a site you must first define the site in a configuration file to be
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 update node with npm and the "n" module Whenever I have to update the node version I do it using npm along with module "n" although there are other options, but this one seems to me the most comfortable.Before upgrading
Development How to fix the Error: EACCES: permission denied, unlink '/usr/local/bin/jhipster' when installing generator-jhipster library node with npm I found this error when creating a jhipster project with npm, and first trying to install the node generator-jhipster library with:npm install -g generator-jhipster The error detail is as follows:[operatorfeitam@dev01
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
Development How to create a new maven archetype I am in a project that requires the use of jBPM and the technical approach is to have the different BPM processes deployed in containers. This forces me to generate many jBPM applications
Development Error installing eclipse on CentOS 8: No protocol specified. Unable to init server: could not connect: connection refused. Eclipse Installer: cannot open display If you are installing Eclipse on CentOS 8 and you encounter this error:/home/operatorfeitam/Downloads/eclipse-installer [root@localhost eclipse-installer]# ./eclipse-inst No protocol specified Unable to init server: Could not connect: Connection refused
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
IT infrastructure and architecture How to change font and font size in TTY console I work with VirtualBox a lot, and I use a lot of TTY consoles, but I never like the size and type of font that usually appears. For example, the one for Ubuntu
Bugs and errors fix Error while doing mvn install of nifi-1.11.4: Could not resolve dependencies for project ... was cached in the local repository, resolution will not be reattempted until the update interval of splunk has elapsed or updates are forced I am compiling nifi-1.11.4 with "mvn -T C2.0 clean install -Pinclude-grpc -DskipTests" to parse a problem I am having in the connectivity of the ListSFTP processor with an SFTP service
Development Maven error with jetty:run java.util.ServiceConfigurationError: org.apache.juli.logging.Log: org.eclipse.jetty.apache.jsp.JuliLog not a subtype The other day I found myself in a java project that was running locally with the jetty-maven-plugin and JDK 11.0.5, and it generated the error:[WARNING] Failed startup of context o.
IT infrastructure and architecture Unable to verify certificate 'Server-Cert'. Add "NSSEnforceValidCerts off" to nss.conf so the server can start until the problem can be resolved Error starting apache httpd service in a Centos 7:[root@localhost conf.d]# systemctl status httpd ● httpd.service - The Apache HTTP Server Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor
Development How to reduce the size of the .git folder In my projects I see that many times the .git folder grows too much and you can reduce it if you require spaces or consider it excessive.To reduce it by reorganizing all
Development Use of avro-maven-plugin with complex schemas defined in several files to be reused in different typed messages In a project I am working on we integrate the different products with kafka and use avro. And to facilitate the generation of avro entities in java with their attributes and methods we
