Hello everybody ! This post is the first one about the Fortinet products. Since few months, I have the chance to work with a lot of Fortinet products and I will begin to write some articles about these company. Today, I will briefly explain how to break/configure the “lan” default hardware switch present on some low-end […]

Hello everybody, In this post, I present you a small and useful bash script that can be used on Linux/Unix/OSX systems. By working in IT, I often need to know what is my public IP address. Everytime, I must use Google and write something like this: “whatsmyip“… I recently had the idea to write my own bash script. […]

Hello everybody. In this new post, I will explain the basic setup to install an Arch Linux 2016. As mentioned on the official website of Arch (www.archlinux.org), this distribution has the main objectives to be lightweight and flexible. Arch Linux has its official and optimized  packages for i686 and x64_86 architectures. These officials packages are […]

I don’t know why, but most of people learn first how to use grep command before trying to use find. After seeing a very good topic about find command, I took the habit to use it to find file with specific filter and I just use grep sometime to help me to filter outputs. In […]

October 29th, 2015, Tor announce a Beta release of Tor Messenger, an new instant messaging client that anonymize your conversation. This new tool is based on InstantBird, a messaging client of Mozilla community. Tor Messenger is available for free download for Windows, OSX and Linux plateform. The main objective is to provide an higher level of […]

NTP (Network Time Protocol) is the widely used protocol used by computers to ensure that their internal clocks are accurate. Surprisingly, connections between computers and NTP servers are rarely encrypted, making it possible for hackers to perform man-in-the-middle attacks that reset clocks to times that are months or even years in the past. Recently, in a paper […]

Hi everybody. In this post I will just explain how to write multi-line files with bash using cat. I write this post because I am not an expert with Shell scripting and recently, I needed to create ldif files from a shell script. I will explain my old and bad method, and the new one […]

Hi everybody. Today I will explain you how to use LUKS to encrypt a disk partition. LUKS stands for Linux Unified Key Setup that means that you can forget to mount as such LUKS partition on a Windows operating system. LUKS uses cryptsetup user-space tool to configure dmcrypt, a kernel-space module that made all cryptography stuffs. Because LUKS is the standard for Linux […]

I write a little article about rp_filter because I recently had a problem that bothered me for several days. In principle, the main functionality of a router is to route packets from one interface to another one. Linux can be used as router that will route amount of traffic without any issues, if configured correctly. The […]

Hi guys, In this small post I just will explain you how to install Zsh shell interpreter on a Ubuntu host. If you read this post, you probably know the advantages and disadvantages of it. In this post, I will use terminator software and not the classical “terminal” application available of Ubuntu by default. If […]