Category Archives: Operating Systems

Active Directory : You do not have sufficient privileges to delete Organizational Unit

Working in Active Directory Users and Computers (ADUC) trying to delete an Organizational Unit (OU), you get the following error : Active Directory Domain Services You do not have sufficient privileges to delete < Organizational Unit >, or this object is protected from accidental deletetion. By default, you need to uncheck the box “Protect object… Read More »

Linux : SuSE repository links for YaST

There is some useful repositories for SuSE Linux. Just add the version of the distribution you are using at the end of the links before adding them to YaST. UnixHeads Packman : http://packman.inode.at/suse/ http://ftp.uni-erlangen.de/pub/mirrors/packman/suse/ VideoLAN Client : http://download.videolan.org/pub/videolan/vlc/SuSE/ Nvidia : ftp://download.nvidia.com/opensuse/

VMware : Install ESX tools for RHEL / CentOS Linux using YUM

To install VMware Tools from the ESX repository on RedHat/CentOS Linux guests using YUM, you need first to install the public key : rpm –import http://packages.vmware.com/tools/keys/VMWARE-PACKAGING-GPG-RSA-KEY.pub [Updated 06/03/12 : key URL has changed. Old location : http://packages.vmware.com/tools/VMWARE-PACKAGING-GPG-KEY.pub)] Now, you need to create the repository file located in /etc/yum.repos.d : vi /etc/yum.repos.d/vmware-tools.repo And then, paste the… Read More »

Linux : How to generate SSL certificate key pair

Here are the few steps to generate the private key, certificate signed request, self-signed certificate and how to get rid of the passphrase request when starting you’re application . Okay, let’s start. Go to the directory you want to store you’re certificate stuff. This example will assume you’re common name (aka : host name) will… Read More »

FreeBSD : How to setup a software RAID-1

First, avoid any problem by getting two identical hard drive (or at least, same size and speed at least if not from same manufacturer). This tutorial assume both your hard disk are “da0” and “da1“. If you don’t know you’re devices name, simply use “dmesg” or “df -h” command to find out. First, let’s temporary… Read More »