This training course is a Linux version of the previous Practical Foundations of Windows Debugging, Disassembly, Reversing book. It also complements Accelerated Linux Core Dump Analysis training course. Although the book skeleton is the same as its Windows predecessor, the content was revised entirely because of a different operating system, debugger (GDB), toolchain (GCC, assembler, linker), application binary interface, and even an assembly language flavor, AT&T. The course is useful for: This book can also be used as x64 assembly language and Linux debugging supplement for relevant undergraduate level courses.