Debian How-To Topics

Here is the complete list of 300+ “How to” topics for Debian 12 (bookworm) Linux, fully categorized. It covers various aspects from installation and setup, package management, user management, system administration, networking, and security.

1. Installation & Setup

1. How to download and verify a Debian ISO
2. How to create a bootable Debian USB drive
3. How to install Debian step by step
4. How to install Debian in a virtual machine
5. How to set up Debian with encrypted disk encryption
6. How to dual boot Debian with Windows
7. How to install Debian on a Raspberry Pi
8. How to install Debian using PXE network boot
9. How to install Debian on an old laptop for better performance
10. How to perform a minimal Debian installation
11. How to perform a network installation of Debian
12. How to select desktop environments during installation
13. How to install Debian with custom partitions
14. How to set up a local Debian repository
15. How to install Debian on a USB stick
16. How to configure LVM during Debian installation
17. How to enable disk encryption during Debian installation
18. How to install Debian on UEFI systems
19. How to troubleshoot installation issues in Debian
20. How to configure network settings during Debian installation

2. Package Management

1. How to update and upgrade Debian packages
2. How to install software using APT in Debian
3. How to remove packages using APT in Debian
4. How to use dpkg to manage Debian packages
5. How to fix broken package dependencies in Debian
6. How to add and remove PPAs in Debian
7. How to use aptitude for package management
8. How to install software from source in Debian
9. How to list installed packages in Debian
10. How to downgrade a package in Debian
11. How to manage package repositories in Debian
12. How to find package versions and dependencies in Debian
13. How to install a package without dependencies in Debian
14. How to purge unnecessary packages in Debian
15. How to check for orphaned packages in Debian
16. How to reinstall a package in Debian
17. How to verify package integrity in Debian
18. How to update package lists in Debian
19. How to install a package from a .deb file in Debian
20. How to create and install your own Debian package

3. User Management

1. How to add a new user in Debian
2. How to delete a user account in Debian
3. How to modify user permissions in Debian
4. How to add a user to the sudoers file in Debian
5. How to change user passwords in Debian
6. How to switch users in Debian
7. How to set up SSH keys for user authentication in Debian
8. How to restrict sudo access to specific commands in Debian
9. How to lock and unlock user accounts in Debian
10. How to view logged-in users in Debian
11. How to manage user groups in Debian
12. How to change a user’s default shell in Debian
13. How to set up passwordless sudo access in Debian
14. How to set user login limits in Debian
15. How to create system users and groups in Debian
16. How to configure user-specific shell environment settings in Debian
17. How to configure user login banners in Debian
18. How to set up password expiration and policies in Debian
19. How to monitor user login history in Debian
20. How to manage sudoers file safely using visudo in Debian

4. System Administration

1. How to check Debian system information
2. How to check disk usage in Debian
3. How to check CPU and memory usage in Debian
4. How to monitor system logs in Debian
5. How to enable and disable services in Debian
6. How to configure automatic updates in Debian
7. How to set up a firewall using UFW in Debian
8. How to manage systemd services in Debian
9. How to schedule tasks using cron jobs in Debian
10. How to check system uptime in Debian
11. How to analyze boot logs using dmesg in Debian
12. How to manage processes with ps and htop in Debian
13. How to kill unresponsive processes in Debian
14. How to change the hostname in Debian
15. How to set up automatic backups in Debian
16. How to create and restore snapshots using Timeshift in Debian
17. How to troubleshoot boot issues in Debian
18. How to manage kernel updates in Debian
19. How to roll back a kernel update in Debian
20. How to list all system services in Debian
21. How to manually start and stop services in Debian
22. How to configure system startup services in Debian
23. How to optimize system performance in Debian
24. How to enable CPU frequency scaling in Debian
25. How to monitor system temperature in Debian
26. How to manage system swap space in Debian
27. How to clean system junk files in Debian
28. How to change the default shell in Debian
29. How to create custom system aliases in Debian
30. How to check hardware information in Debian

5. Networking

1. How to check and configure IP addresses in Debian
2. How to change the hostname and domain name in Debian
3. How to restart the network service in Debian
4. How to configure static and dynamic IP addressing in Debian
5. How to check network connection speed in Debian
6. How to configure a network bridge in Debian
7. How to use netplan to manage networking in Debian
8. How to list all network connections and open ports in Debian
9. How to find your public and private IP addresses in Debian
10. How to troubleshoot slow network speeds in Debian
11. How to check internet connectivity using curl and wget in Debian
12. How to configure a Debian server as a DNS resolver
13. How to set up and configure a Debian router
14. How to use nmap for network scanning in Debian
15. How to set up SSH key authentication in Debian
16. How to block specific IPs using iptables in Debian
17. How to allow or deny network access using hosts.deny and hosts.allow
18. How to disable network interfaces on boot in Debian
19. How to create a WiFi hotspot in Debian
20. How to configure NetworkManager for WiFi in Debian
21. How to troubleshoot WiFi connection issues in Debian
22. How to set up and use ip and ifconfig commands in Debian
23. How to configure a SOCKS proxy in Debian
24. How to check routing tables and default gateway in Debian
25. How to use tcpdump for network traffic analysis in Debian
26. How to set up an OpenVPN client in Debian
27. How to configure a WireGuard VPN server in Debian
28. How to share an internet connection via Ethernet in Debian
29. How to configure and use a static ARP table in Debian
30. How to detect and prevent ARP spoofing in Debian

6. Security & Hardening

1. How to configure UFW firewall rules in Debian
2. How to enable and configure AppArmor in Debian
3. How to harden SSH security in Debian
4. How to disable root login over SSH in Debian
5. How to restrict SSH access by IP address in Debian
6. How to set up automatic log monitoring for security in Debian
7. How to check for rootkits and malware in Debian
8. How to disable USB ports for security in Debian
9. How to encrypt an entire Debian system using LUKS
10. How to securely delete files in Debian
11. How to set up file integrity monitoring with AIDE in Debian
12. How to use chroot for secure application execution in Debian
13. How to scan a Debian system for vulnerabilities
14. How to use firewalld for enhanced security in Debian
15. How to set up multi-factor authentication (MFA) in Debian
16. How to configure fail2ban for SSH brute force protection in Debian
17. How to configure SELinux in Debian
18. How to audit system logs for suspicious activity in Debian
19. How to secure MySQL/MariaDB databases in Debian
20. How to set up an intrusion detection system (IDS) in Debian
21. How to disable unnecessary services to improve security in Debian
22. How to restrict access to sudo commands in Debian
23. How to prevent unauthorized sudo access in Debian
24. How to set up a VPN kill switch in Debian
25. How to secure the /tmp directory in Debian
26. How to configure security updates to install automatically in Debian
27. How to log and monitor failed login attempts in Debian
28. How to secure system backups in Debian
29. How to prevent brute-force attacks on web applications in Debian
30. How to use firejail to sandbox applications in Debian

7. Storage Management

1. How to create and manage partitions using fdisk in Debian
2. How to create and manage partitions using parted in Debian
3. How to set up a RAID array on Debian
4. How to configure LVM (Logical Volume Manager) in Debian
5. How to resize a partition using GParted in Debian
6. How to mount and unmount file systems in Debian
7. How to configure swap space in Debian
8. How to manage file system types (ext4, xfs, etc.) in Debian
9. How to create a disk image of your Debian system
10. How to enable automatic mounting of drives on boot in Debian
11. How to format a USB drive in Debian
12. How to set up network-attached storage (NAS) in Debian
13. How to configure NFS (Network File System) in Debian
14. How to use Samba for file sharing in Debian
15. How to configure and use rsync for backup in Debian
16. How to configure ZFS in Debian
17. How to repair file systems with fsck in Debian
18. How to encrypt a partition using LUKS in Debian
19. How to set up a cron job for automatic backups in Debian
20. How to monitor disk health using smartctl in Debian
21. How to create a mount point and mount drives in Debian
22. How to configure file permissions and ownership in Debian
23. How to recover deleted files in Debian
24. How to use the du command to check disk usage in Debian
25. How to optimize disk I/O performance in Debian
26. How to check filesystem integrity using e2fsck in Debian
27. How to use btrfs for advanced file system management in Debian
28. How to create a software RAID 1 array in Debian
29. How to increase disk space using LVM in Debian
30. How to set up RAID 5 or RAID 10 in Debian

8. Web Services

1. How to install Apache web server on Debian
2. How to configure Apache virtual hosts on Debian
3. How to secure Apache with SSL using Let’s Encrypt in Debian
4. How to install Nginx web server on Debian
5. How to configure Nginx reverse proxy on Debian
6. How to set up a WordPress site on Debian using Apache
7. How to configure PHP with Apache on Debian
8. How to install and configure MySQL on Debian
9. How to install and configure PostgreSQL on Debian
10. How to create a database in MySQL/MariaDB on Debian
11. How to configure SSL certificates on Nginx in Debian
12. How to set up a PHP-FPM environment with Nginx on Debian
13. How to install and configure phpMyAdmin on Debian
14. How to set up a basic firewall for web servers in Debian
15. How to install and use Redis on Debian
16. How to set up Apache with mod_rewrite on Debian
17. How to enable gzip compression in Apache on Debian
18. How to optimize Apache performance on Debian
19. How to create a basic PHP site on Debian
20. How to install and configure Postfix mail server on Debian
21. How to install and configure Dovecot IMAP server on Debian
22. How to configure email forwarding in Debian using Postfix
23. How to configure SSL/TLS encryption for email servers in Debian
24. How to set up a LAMP stack (Linux, Apache, MySQL, PHP) on Debian
25. How to install and configure a PHP framework (Laravel, Symfony) on Debian
26. How to install and configure a VPN server (OpenVPN) on Debian
27. How to configure a CDN for your website on Debian
28. How to install and configure a mail client (Thunderbird) on Debian
29. How to configure Apache to serve a static site on Debian
30. How to set up a reverse proxy with Apache in Debian

9. Backup & Recovery

1. How to use tar to back up files in Debian
2. How to use rsync for remote backups in Debian
3. How to create full system backups in Debian
4. How to schedule backups using cron in Debian
5. How to restore files from backup in Debian
6. How to configure automatic backups with rsnapshot in Debian
7. How to backup MySQL databases in Debian
8. How to restore MySQL backups in Debian
9. How to set up and use Timeshift for system snapshots in Debian
10. How to use Clonezilla for creating system images in Debian
11. How to configure a remote backup server in Debian
12. How to encrypt backups in Debian
13. How to create incremental backups in Debian
14. How to perform disaster recovery from backups in Debian
15. How to verify the integrity of backups in Debian
16. How to store backups on an external drive in Debian
17. How to create a bootable backup disk in Debian
18. How to back up the entire disk using dd in Debian
19. How to automate backups to cloud storage in Debian
20. How to restore a full disk backup in Debian
21. How to set up a backup server in Debian using Bacula
22. How to back up a website in Debian
23. How to monitor backup status in Debian
24. How to troubleshoot backup failures in Debian

10. Virtualization & Containers

1. How to install and configure VirtualBox on Debian
2. How to install KVM and QEMU on Debian
3. How to set up a virtual machine using VirtualBox on Debian
4. How to install Docker on Debian
5. How to run Docker containers on Debian
6. How to manage Docker containers on Debian
7. How to create a Docker image on Debian
8. How to set up a Docker Compose environment in Debian
9. How to install and configure LXD on Debian
10. How to configure Proxmox VE for virtualization on Debian
11. How to manage virtual machines using virsh in Debian
12. How to migrate virtual machines in Proxmox VE on Debian
13. How to set up and manage VMware ESXi on Debian
14. How to use Snapshots in VirtualBox on Debian
15. How to configure networking for virtual machines in Debian
16. How to optimize Docker containers for performance in Debian
17. How to run a Windows VM in VirtualBox on Debian
18. How to manage storage for virtual machines in Debian
19. How to configure a virtual LAN for virtual machines in Debian
20. How to use vagrant for virtual machine provisioning in Debian
21. How to configure a hypervisor with hardware-assisted virtualization in Debian
22. How to use systemd-nspawn for containerized applications in Debian
23. How to install and use OpenVZ on Debian
24. How to set up a virtualized development environment on Debian
25. How to configure a guest operating system in a virtual machine in Debian
26. How to monitor the performance of virtual machines on Debian

11. Advanced Topics

1. How to set up a Git server in Debian
2. How to use systemd timers instead of cron in Debian
3. How to configure systemd boot parameters in Debian
4. How to configure advanced logging with journald in Debian
5. How to compile the Linux kernel from source in Debian
6. How to integrate SELinux with AppArmor in Debian
7. How to create custom systemd units in Debian
8. How to use auditd for auditing system activity in Debian
9. How to build a custom Debian ISO image
10. How to set up a Debian-based server farm
11. How to optimize a server for hosting multiple websites in Debian
12. How to configure load balancing with HAProxy in Debian
13. How to set up high-availability clustering on Debian
14. How to use Puppet or Ansible for automation in Debian
15. How to secure your Debian server with IPsec
16. How to set up a personal cloud server using Nextcloud on Debian
17. How to configure advanced SSH settings for automation in Debian
18. How to configure advanced Nginx settings for load balancing in Debian
19. How to configure system services for high performance in Debian
20. How to use chroot for creating isolated environments in Debian
21. How to set up a GitLab server on Debian
22. How to implement two-factor authentication with PAM in Debian
23. How to build a custom DNS server in Debian
24. How to configure and use fail2ban to protect web applications in Debian
25. How to run performance benchmarks on Debian
26. How to set up a dedicated game server on Debian
27. How to deploy and manage microservices on Debian using Kubernetes
28. How to monitor system performance with Prometheus on Debian
29. How to use system profiling tools (perf, ftrace) in Debian
30. How to configure and optimize Apache for high-traffic websites on Debian
31. How to build and deploy an IoT application on Debian
32. How to set up an LDAP server on Debian
33. How to implement a CDN using Debian
34. How to integrate Docker with Kubernetes on Debian
35. How to set up automatic Docker container updates in Debian
36. How to implement network-based storage for Debian servers
37. How to integrate GitHub with Jenkins CI/CD pipeline on Debian
38. How to perform security hardening on a public-facing server in Debian
39. How to manage system updates using unattended-upgrades in Debian
40. How to perform a detailed security audit of a Debian system