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 [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 [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 [continue...]

Scenario / Question: How do I get VirtualBox USB support to work in Fedora ? Solution / Answer: Configure usbfs to allow vboxusers access to USB devices and add usbfs mount to /etc/fstab Configure VirtualBox USB Obtain the GID of the vboxusers group (your GID may different then 501): # cat [continue...]

Scenario / Question: How do I install NRPE on a SME 7 server Solution / Answer: You install NRPE by using the rpm packages hosted by Michael Weinberger. Download rpm packages Use the following script to automatically download all the needed packages wget_nrpesme Download and Run: # mkdir -p [continue...]

Scenario / Question: How do I get flash to work on Fedora 11 x86_64 64bit version Solution / Answer: Manually download install flash-plugin Installing flash-plugin x86_64 Download the flash player plugin from Adobe http://labs.adobe.com/downloads/flashplayer10.html Install libflashplayer.so to [continue...]