A few weeks ago, we've learned about strace, a simple yet powerful system debugging tool that allows you to trace the system calls during the execution of a process, allowing you to solve many problems quickly and efficiently. It's time to step up the geeky fun a notch and learn about OProfile.

strace is a useful little utility – installed by default on most Linux systems – which allows you to find out what a program is doing under the hood by tracing the system calls it's making.

SSH doesn't lend itself well to tcp analyzers. However, if you have that privilege, you can get the same results with strace!

Of the many controversies in free software, this is one that I have long found to be interesting. People seem to define things in different ways, which leads to confusion (and arguing) when one person calls a system a "GNU/Linux" system and the next calls it just the "Linux" system.

Trying to run a program but facing weird errors? Well, most of the Linux users might have faced this situation. Many of us either spend hours searching on internet about the problem or wait for days on forums to get a reply. Sometimes we even give up and un-install the program.

KernelCheck is a graphical user interface program designed to make the kernel-compiling process as easy as the click of a button. A kernel is the base of any operating system – in our case, the Linux operating system. KernelCheck will fetch the latest information

"The Linux kernel (the core of the Linux operating system) The kernel package contains the Linux kernel (vmlinuz), the core of any Linux operating system. The kernel handles the basic functions of the operating system: memory allocation, process allocation, device input and output, etc."

How do you audit your Linux environment? How do you track after changes to your files? What kind of processes are running on your system at any given moment? What uses the most resources? Valid questions, all. Special contributor Dedoimedo gives us the straight scoop on "audit."

"A microkernel is a minimal computer operating system kernel which, in its purest form, provides no operating-system services at all, only the mechanisms needed to implement such services, such as low-level address space management, thread management, and inter-process communication (IPC).