Scenario

XYZ is an upstart company located in Calgary. They need a network designed and implemented by a Linux administrator. They have contracted you to set up their infrastructure with basic configurations and server services using $2$ Red Hat Enterprise Linux Servers. One server must be configured with appropriate files, folders, users, groups and permissions. A second Linux$-$based server will provide DHCP$,$ and DNS services.

The company has three departments: Sales, Human Resources and Engineering, and they have hired six new employees to fill the three newly designed departments. As a Linux administrator, you are responsible to ensure a successful launch of the newly designed departments and the company.

Requirements

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Follow logical and appropriate naming conventions for virtual machine hostnames.

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Use a static IP address, subnet mask and default gateway for all servers.

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Set up and configure a Linux DHCP server to automatically assign IP addresses to client machines.

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Set up and configure a Linux DNS server capable of resolving hostnames of all machines on your network to IP addresses and vice versa.

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Enable firewall service to allow http traffic.

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Create a directory at the root of the file system for each department with the name reflecting their department name.

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Create a group for each department with the name reflecting their department name.

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Create an administrator user for each department. The user will belong to the respective group for each department. You can create your own user names.

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Only the owner of a file in the department$$s directory can delete the file.

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Create a document in each of the department directories with the following text: $$This is a confidential document created by $[$your name$].$ This document can be read by anyone in the department but can only be modified by the administrator of the department.$$

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All machines must be able to ping each other by hostname and IP address.

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All machines must have access to the internet.

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All client machines will receive IP addressing dynamically from a DHCP server.