Category Archives: Operating Systems

Apache : Unable to configure RSA server private key

Apache startup failed – look at /var/log/httpd/ssl_error_log and show the following error : Unable to configure RSA server private key SSL Library Error: x509 certificate routines:X509_check_private_key:key values mismatch The private key and the certificate do not match. You can compare the certificate and the key with the following commands : View the certificate modulus using… Read More »

IIS7 : How to Backup configuration

Since Internet Information Server 7, there is no longer a GUI option to achieve this task.  To do so, you need to manually proceed with the command line interface. Open a terminal (Run, cmd) ; cd %windir%\system32\inetsrv appcmd add backup <backupname>

Windows 7 : All in one setting panel trick (God Mode)

Since Windows Vista, you can create a new folder with a specific name string that create the “God Mode” option. This shortcut will regroup all possible setting under one single control panel. Simply create a new folder and rename with the following line : GodMode.{ED7BA470-8E54-465E-825C-99712043E01C}

Dell : Install OpenManage for RHEL/CentOS

1. Set up the Dell OpenManage Repository at http://linux.dell.com/repo/hardware, like this: wget -q -O – http://linux.dell.com/repo/hardware/latest/bootstrap.cgi | bash 2. Install OpenManage Server Administrator: yum install srvadmin-all Other possible choices are : srvadmin-base, srvadmin-webserver, srvadmin-storageservices 3. Make sure the TCP port 1311 is open in IPtables. If not, add this line : -A INPUT -p tcp… Read More »

Windows 7 : missing location tab on user document folder

With Windows 7, it is possible to change the My Document, My Music, My Video, Favorites, Desktop, etc. user folders location to another easily by doing a right click on the folder and click on the “Location” tab. But, in some rare circumstances, such as changing the destination drive letter, you may occur serious problem. … Read More »