Getting Started with Linux Server Management

Victor Kituku — Wed, 21 Jan 2026 16:34:19 +0000

Today I learned some of the fundamental skills needed to manage a Linux server. These are core concepts that anyone working with servers, DevOps, or backend systems should understand. Below is a summary of what I learned, with explanations and examples.

1. SSH into a Linux Server as Root

SSH (Secure Shell) allows you to securely connect to a remote Linux server.

ssh root@server_ip_address

root is the superuser with full system access
server_ip_address is the public or private IP of the server
You may be prompted for a password or use an SSH key

⚠️ Note: Logging in as root is powerful but risky. Best practice is to create a regular user and use sudo instead.

2. Creating a New User

To create a new user:

adduser username

This command:

Creates a home directory
Sets up default permissions
Prompts you to set a password

Example:

adduser victor

3. Switching Between Users

To switch from root to another user:

su - username

Example:

su - victor

The - ensures the user’s environment variables are loaded properly.

4. Navigating the File System

Linux uses a hierarchical file system. Some essential navigation commands:

Check current directory

pwd

List files and folders

ls
ls -la

Change directory

cd /path/to/directory
cd ..
cd ~

5. Copying Files and Directories

Copy a file

cp source_file destination

Copy a directory

cp -r source_directory destination

Example:

cp config.txt /etc/myapp/

6. Moving and Renaming Files

The mv command is used for both moving and renaming.

Move a file

mv file.txt /new/location/

Rename a file

mv oldname.txt newname.txt

7. Editing Files with Nano

Nano is a beginner-friendly terminal text editor.

nano filename

Useful Nano shortcuts:

CTRL + O → Save file
CTRL + X → Exit
CTRL + K → Cut line
CTRL + U → Paste line

Nano is great for quick edits to config files.

8. Granting Sudo Privileges

To allow a user to run administrative commands, add them to the sudo group.

usermod -aG sudo username

Example:

usermod -aG sudo victor

To apply changes immediately, log out and log back in.

Test sudo access:

sudo apt update

9. Deleting a User

Delete a user (keep home directory)

deluser username

Delete a user and their home directory

deluser --remove-home username

⚠️ Be careful — this action is irreversible.

10. Why This Matters

These skills are foundational for:

Managing cloud servers
Deploying applications
Securing production environments
Working with Docker, CI/CD, and automation tools

Understanding users, permissions, and file management is essential before moving into advanced Linux or DevOps topics.

Final Thoughts

Today’s learning covered:

Secure server access via SSH
User creation and management
Linux file system navigation
File operations (copy, move, edit)
Permission control using sudo

This is the groundwork for becoming comfortable and confident on any Linux server. 💪🐧

DEV Community: Victor Kituku

Getting Started with Linux Server Management

1. SSH into a Linux Server as Root

2. Creating a New User

3. Switching Between Users

4. Navigating the File System

Check current directory

List files and folders

Change directory

5. Copying Files and Directories

Copy a file

Copy a directory

6. Moving and Renaming Files

Move a file

Rename a file

7. Editing Files with Nano

Useful Nano shortcuts:

8. Granting Sudo Privileges

Test sudo access:

9. Deleting a User

Delete a user (keep home directory)

Delete a user and their home directory

10. Why This Matters

Final Thoughts