How do you search your entire server for a specific file named apache2.conf?
sudo find / -name "apache2.conf"
How do you update the package list and safely upgrade all installed software on your Ubuntu server?
sudo apt update && sudo apt upgrade
How do you install a new software package, such as the "tree" utility?
sudo apt install tree
How do you check if your Apache web server is actively running or crashed?
sudo systemctl status apache2
How do you watch the Apache error log update continuously in real-time?
sudo tail -f /var/log/apache2/error.log
Additional files.