Mastering Development

Behaviour discrepancy with Docker container

I am developing a small Java app that is supposed to check an email inbox. When I deploy it in my production environment and execute the jar, the connection to the inbox is well established using the port 110. Issue: I put the jar within its own Docker container, the port 995 (secured connection) is […]

Mastering Development System & Network

Telnet issues between docker networks

in a host machine (its LAN ip is, I have the following services 1) mysql , its docker-compose.yml is as below. It creates a bridge network called mysql_default,it is assigned a VIP version: ‘2’ services: mysql: image: mysql:5.7 restart: always container_name: mysql volumes: – /etc/localtime:/etc/localtime – /data/mysql:/var/lib/mysql ports: – 3306:3306 2) nacos, its […]