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First install docker on centos 7

Octopus system admins team just deployed a web UI application for their backup utility running on Octopus backup server in SC Datacenter. The application is running on port 6400 . They have firewalld installed on that server. Some requirements have came up as mentioned below:

Kali ini kita akan membuat user dengan nama yousuf, kemudian kita akan mengeset UID nya menjadi 1656 dan home direktorinya di /var/www/yousuf

Kali ini kita akan membuat banner di linux

Kali ini kita akan membuat sebuah user baru tanpa interaktif shell pada linux

install docker on centos

The overlay network driver creates a distributed network among multiple Docker daemon hosts. This network sits on top of (overlays) the host-specific networks, allowing containers connected to it (including swarm service containers) to communicate securely. Docker transparently handles routing of each packet to and from the correct Docker daemon host and the correct destination container. see detail https://docs.docker.com/network/overlay/

Differences between user-defined bridges and the default bridge

In terms of networking, a bridge network is a Link Layer device which forwards traffic between network segments. A bridge can be a hardware device or a software device running within a host machine’s kernel.

We will use volume driver on Docker

Volumes are the preferred mechanism for persisting data generated by and used by Docker containers. While bind mounts are dependent on the directory structure of the host machine, volumes are completely managed by Docker. Volumes have several advantages over bind mounts:

Create Dockerfile

Docker can build images automatically by reading the instructions from a Dockerfile. A Dockerfile is a text document that contains all the commands a user could call on the command line to assemble an image. source: Dockerfile

What is Docker ?

Awal nya ini terjadi pada linux saya setelah beberapa kali mengalami crash pada hardisk yang terkadang sering tidak terbaca. Meskipun kadang sempat kesal kenapa hal itu bisa terjadi, kemudian saya coba browsing-browsing di google dan berdiskusi di komunitas distronya ternyata belum mendapatkan solusi juga, bahkan saya sempat bertanya pada developernya yang berasal dari Italy, dia menyarankan agar saya mengupgrade OS saya ke versi terbaru, dan ternyata sama saja.

1. Matikan service mysql

Okee.. then

Connect a USB keyboard in there, or get into the machine using ssh.

Open a terminal, and run xev. It will show some stuff on screen (too much stuff, but don’t worry). You will notice that it will show some more stuff if you move your mouse, as well.

Previously You check in terminal

1. Install Apache