Ubuntu Server
Linux server operating system used as the foundation of the environment.
LINUX / SYSTEM ADMINISTRATION / DEVOPS
Ubuntu Server Environment
A practical Ubuntu Server environment built to develop hands-on experience with Linux administration, networking, SSH, services, firewall configuration and server management.
$
hostname
ubuntu-server
$
whoami
alvin
$
systemctl --type=service
Active Linux services
$
sudo ufw status
Firewall configuration
$
ssh alvin@server
Remote shell connected
01 / OVERVIEW
Building a practical Linux server environment.
This project focuses on building and managing an Ubuntu Server environment as a foundation for learning Linux system administration and Cloud DevOps practices.
Instead of treating Linux as only a collection of commands, the environment is used as an actual server where users, services, networking, permissions and system configuration can be practiced.
The environment also provides a foundation for experimenting with additional services and infrastructure tools as the project develops.
02 / ARCHITECTURE
Server management workflow.
The Ubuntu Server acts as the central Linux environment. Administration can be performed through the terminal using SSH, while Cockpit provides a browser-based management interface.
Development PC
Workstation
→
Ubuntu Server
Linux Environment
→
SSH
Remote Administration
→
Cockpit
Web Management
03 / TECHNOLOGY STACK
Technologies and concepts.
Linux CLI
Command-line tools used to inspect, configure and manage the server.
SSH
Secure remote administration from another computer.
systemd
Service and system management using the Linux service manager.
UFW
Host-based firewall management and network access control.
Cockpit
Browser-based interface for monitoring and managing the Linux server.
04 / IMPLEMENTATION
Building the environment.
01
Install Ubuntu Server
Set up a minimal Ubuntu Server environment and prepare the system for administration.
02
Learn the Linux filesystem
Work with directories, files, paths, permissions and common Linux command-line utilities.
03
Configure users and permissions
Practice user management, administrative privileges and Linux file permissions.
04
Configure SSH
Enable secure remote access and manage the server from another machine.
05
Work with services
Learn how Linux services operate and use systemctl to inspect and manage them.
06
Configure firewall rules
Practice controlling network access through UFW and understand the relationship between services and ports.
07
Install Cockpit
Add browser-based server management for system monitoring and administration.
05 / LINUX COMMANDS
Core server commands.
ubuntu-server.sh
# Check the current user
whoami
# Display the hostname
hostname
# Display the current directory
pwd
# List files
ls -la
# Inspect IP addresses
ip addr
# Check SSH service
sudo systemctl status ssh
# Check firewall
sudo ufw status
# List active services
systemctl --type=service --state=running
# Check listening ports
sudo ss -tulpn
06 / SERVER MANAGEMENT
Managing the server.
SSH
Remote Administration
Manage the Linux server remotely from a workstation through a secure shell connection.
UFW
Network Protection
Control which network services and ports are allowed through the host firewall.
GUI
Cockpit
Monitor and manage the Linux server through a browser-based administration interface.
07 / CHALLENGES
What this environment is teaching me.
Linux administration
Understanding how files, users, permissions, processes and services work together on a Linux server.
Networking
Understanding interfaces, IP addresses, ports, services and remote connectivity.
Service management
Learning how services are started, stopped, enabled and monitored using systemd.
Troubleshooting
Investigating configuration, connectivity and service issues instead of relying only on preconfigured environments.
08 / WHAT I LEARNED
Linux as the foundation.
This environment is helping me move from learning individual Linux commands to understanding how a complete server environment operates.
The focus is on practical administration: connecting remotely, managing services, configuring networking, working with permissions and controlling access to server resources.
These fundamentals form the base of the Cloud and DevOps technologies I am continuing to learn.
Current direction
Continue expanding the Ubuntu Server environment with additional services, automation and Cloud/DevOps tooling.
END OF PROJECT
Learn Linux. Build servers. Automate everything.
This environment is part of my hands-on journey toward Cloud and DevOps engineering.