System
16/06/2016
Synchronizing folders with rsync
Source: Juan Valencia's website In this post I cover the basics of rsync, in preparation for a subsequent post that will cover ...
Fixing Mac OSX File Permissions and ACLs From the Command Line
Recently the hard drive in my mac mini running Mac OSX Leopard (10.5) failed. Luckily I had time machine backing ...
How to list the crontabs for all users?
I ended up writing a script (I'm trying to teach myself the finer points of bash scripting, so that's why ...
Nmap Reference Guide
NMAP: Host DiscoveryNMAP: One of the very first steps in any network reconnaissance mission is to reduce a (sometimes huge) ...
Change & Set the Default crontab Editor
Most hardcore command line users and unix geeks love vi, but I prefer nano. If you want to change your default crontab ...
How to create a reverse SSH tunnel
Sometimes that we need to connect via SSH into another computer, we find out that this computer that we intend ...
Astuce pour « ssh-copy-id » sur un port ssh différent
Bon, a priori vous connaissez la commande "ssh-copy-id" pour copier sa clé publique sur un serveur distant afin de s’identifier ...
MOTDStat – Message Of The Day – System Status
Voici un petit outil qui pourrait se révéler bien pratique dans votre vie de SysAdmin GNU/Linuxien Il s’agit de MOTDStat ...
Chercher une chaine de caractères dans des fichiers Linux
Source: tuto-linux.com Sur Linux, ne vous est-il jamais arrivé de vouloir chercher une chaîne de caractères dans un dossier complet, ...
Alertes par SMS en Bash (via Google Calendar)
La remontée d’alerte par SMS (“Short Message Service”) est un plus non négligeable dans le monitoring de systèmes d’informations critiques ...
Read a Specific Line From a File in Linux
1. Overview Reading text files is a common operation when we work with the Linux command-line. Sometimes, we know the ...
Dupliquer un système Debian / Ubuntu
Dupliquer un système consiste à installer, sur une machine, exactement les mêmes paquets que sur une autre. La technique n’a ...
Automatically Connect to a Network Drive on Mac OS X Start Up & Login
It can be helpful to configure Mac OS X to automatically mount shared network drives, this is particularly true for ...
Trashing files not going to the trash bin
Click on the item in the Finder's sidebar with the house icon and verify that you are able to write ...
How-To Factory Reset MacBook Air and other macs with macOS
There are many reasons why you’d want to reset your MacBook Air to factory settings. Perhaps your Mac is showing ...
Where to Set Environment Variables in Mac OS X
At the command line, environmental variables are defined for the current shell and become inherited by any running command or ...
