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 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...]

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...]

Who is this article for? This article is for C++ programmers who wish to start coding GUI (Graphical User Interface) applications using FLTK. The documentation of FLTK is very good. However, I found the tutorial examples went from very easy (Hello World) to a little too diffucult (editor.cxx). [continue...]

Scenario / Question: How do I monitor a remote linux system using Nagios Solution / Answer: Use th NRPE daemon to execute Nagios plugins on the remote server and report back to the monitoring host server. NRPE Remote Server Installation and Setup Create Nagios user account on remote server to be [continue...]