How-To: Explore a Linux Process or Service

We keep going with the series of articles about exploring a Linux System with the next step that is Exploring a Process.

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How-To: Explore a Linux System

In this set of super-quick “how-tos” we’ll see how to explore a Linux System via CLI (command line). How to check release, architecture, platform, files, logs, processes, devices and other useful info to start troubleshooting or maintaining a Linux System.

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Configure and use your TPM module on Linux

In this article we’ll see how to configure and use a TPM module (Trusted Platform Module)  on CentOS 7 (RHEL 7, PacketLinux 2 and Scientific Linux and Fedora).

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How to install and configure a super cool Minecraft server to be able to play and coding!

In this post we’ll have a look at how to install McMyAdmin, Minecraft Server, Forge and ComputerCraft to be able to run a full professional Minecraft Server to play with our friends and even to code in Minecraft!

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How to force any Linux application to use Hugepages without modifying the source code

In this article we’ll have a look at how to force any software application to use Huge Pages (HugeTLB) without the need to modify the source and/or recompile them.

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How to read information of your BIOS and hardware from linux shell

In this article we’ll see how to read information about your computer BIOS and hardware from the Linux command line.

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C code snippet to measure function execution time for both Linux and Mac OS X

In this article we’ll see how to write a simple yet effective code in C language to measure the time required to process a function. This code has been written to be  compiled without changes on both Linux-GCC and Mac OS X GCC compiler.

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How to convert a VMware Virtual Machine to KVM or Virtualbox VM

In this post we’ll see all the necessary steps to convert a VMware Virtual Machine to a KVM or Virtualbox VM.

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How to repair a corrupted VMware disk image

This article describes the easy steps to repair VMware corrupted disk images…

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How to recover KVM Virtual Machine root password

This procedure shows how to recover root password on a KVM Virtual Machine running Linux OS and which uses LVM partitioning schema.

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How to extend a Linux ext3 partition when it’s mounted

Many times when using Virtual Machines it becomes necessary to extend the main disc partition because the VM ran out of space without loosing data, so here is how to do it.

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System Calls (Part I)

Syscalls are the way a Software Application Program can interact with the underlining Operating System, everything from displaying a character on the screen to reading a file from the harddrive will generate syscalls. In this post we’ll analyse syscalls in details with examples on different CPU architectures and Operating Systems.

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