UbuntuHow to Disable the GUI and Boot to the Command Line in Ubuntu
The Heavy Desktop Environment If you installed the standard desktop version of Ubuntu Linux on...
UbuntuHow to Find Files by Extension in Ubuntu Linux
The File Type Hunt When managing an Ubuntu Linux server, you rarely need to find...
UbuntuHow to Delete a User Account and Home Directory in Ubuntu
The Orphaned Data Problem When an employee leaves a company, or when a temporary contractor...
UbuntuHow to Check the Size of a Directory in Ubuntu Linux
The Storage Mystery If your Ubuntu Linux server is suddenly warning you that the hard...
UbuntuHow to Find All Symbolic Links in a Directory in Ubuntu Linux
The Symlink Audit In Ubuntu Linux, a symbolic link (or “symlink”) is essentially an advanced...
UbuntuHow to Count the Number of Files in a Directory in Ubuntu Linux
The Directory Size Problem When managing an Ubuntu Linux server, you occasionally need to know...
UbuntuHow to Find Files Containing Specific Text in Ubuntu Linux
The configuration Needle in a Haystack When you are managing an Ubuntu Linux server with...
UbuntuHow to Find Files Modified in the Last N Days in Ubuntu Linux
The Timeline Audit When investigating a broken web application or a sudden spike in server...
UbuntuHow to Completely Disable IPv6 in Ubuntu Linux
The Legacy Networking Problem IPv6 is the modern internet protocol designed to replace the aging,...
UbuntuHow to Find Files Based on Exact Permissions in Ubuntu Linux
The Security Risk of 777 In the Linux permission system, “777” means that every single...
UbuntuHow to Disable the GUI and Boot to Terminal in Ubuntu Linux
The Bloat of a Graphical Interface If you install the standard desktop version of Ubuntu...
UbuntuHow to Find Files Accessed in the Last 24 Hours in Ubuntu Linux
The Security Audit Challenge When auditing an Ubuntu Linux server for a potential security breach,...
UbuntuHow to Find the Process Using a Specific Port in Ubuntu Using lsof
The Port Conflict Problem When you attempt to start a new web service on an...
UbuntuHow to List All Active Network Connections in Ubuntu Linux
The Silent Listeners When you are managing an Ubuntu Linux server, security and performance dictate...
UbuntuHow to Find Empty Files and Directories in Ubuntu Using the find Command
The Clutter of Zero-Byte Files As you run scripts, compile code, and install applications on...
UbuntuHow to Find Large Files Over a Specific Size in Ubuntu Using the find Command
The Disk Space Crisis When an Ubuntu Linux server suddenly runs out of hard drive...
UbuntuHow to Instantly Empty a File Without Deleting It in Ubuntu Using truncate
The Dangers of Deleting Log Files When running an Ubuntu Linux server, background services (like...