Scenario / Question: How do I install VirtualBox on a linux server that does not have a GUI installed or Xorg. Solution / Answer: VirtualBox can be installed on a headless server, and can be controlled with VBoxManage and VBoxHeadless from the command line. Install VirtualBox 3.0 There are two [continue...]

How do I get Lighttpd to work with PHP Instal Lighttpd web server Follow the following tutorial: “Lighttpd and Centos 5” Add PHP support to Lighttpd web server Install lighttpd-fastcgi and php-cli # yum install lighttpd-fastcgi php-cli Configure the Config files to enable PHP for [continue...]

What is Lighttpd “Security, speed, compliance, and flexibility — all of these describe lighttpd (pron. lighty) which is rapidly redefining efficiency of a webserver; as it is designed and optimized for high performance environments. With a small memory footprint compared to other [continue...]

Scenario / Problem: Nagios is not sending notifications via email. In the logs: cat /var/log/messages |grep notification nagios nagios: Warning: Contact ‘nagiosadmin’ service notification command ‘/usr/bin/printf “%b” “***** Nagios *****\n\nNotification Type: [continue...]

Scenario / Question: On boot I get the following error /etc/rc.d/init.d/functions: line 513: 1345 aborted “$@” FAILED when nvidia driver loads /etc/rc.d/init.d/functions: line 513: 1345 aborted “$@” FAILED OR # nvidia-config-display Segmentation Fault Solution / Answer: The problem is [continue...]

Scenario / Question: How do I setup vncserver so I can remote into Fedora 11 and use Gnome desktop or GDM Solution / Answer: Install vnc-server on Fedora 11 machine and connect to Gnome desktop or GDM Install Xinetd # yum install xinetd Enable XDMCP # vi /etc/gdm/custom.conf Change the follwoing [continue...]

Scenario / Question: I installed Fedora 11 with software RAID partitions and after rebooting I get a grub prompt grub> Solution / Answer: Manually configure grub Manually configure Grub Locate grub setup files: grub> find /grub/stage1 On a RAID 1 with two drives present you should expect to [continue...]

Scenario / Question: How do I monitor Windows Services and Processes using check_nt and Nagios NSClient++ Solution / Answer: Use the check_nt command with the SERVICESTATE and PROCSTATE variables. Install and Configure Nagios NSClient++ as per the following tutorial: “Nagios NSClient++ to [continue...]

Scenario / Question: How do I monitor a remote Windows system using Nagios Solution / Answer: Use the NSClient++ addon to execute Nagios plugins on the remote server and report back to the monitoring host server. NSClient++ Remote Server Installation and Setup Make a [continue...]

Scenario / Question: How do I setup freeNX on a remote server system running Fedora x86_64 4bit OS. Solution / Answer: Installing the freeNX server software on the remote server machine and using the NoMachine freenx client to connect to it from you local machine. Installing freeNX Server: On the [continue...]