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How To Monitor Remote Linux Host using Nagios

In the previous post How to install Nagios on CentOS 5 or 6 , I explained the overview, installation and configuration of Nagios 3.0 on a CentOS Server. In the following three chapters, I’ll explain how to monitor a remote Linux host and the various services running on the remote host.  Also, please refer to all our Nagios articles. I. Overview II. 6 …

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Install PNP4Nagios on Centos

The installation of PNP will be described in more detail. It is expected that nagios was compiled from source and is located in /usr/local/nagios. Attention: The description applies to the developer version PNP 0.6.0. Please note that PNP has to be configured after the installation. Make and more The installation of PNP is controlled by makefiles. The system is analyzed after invocation …

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How To Install Transmission BitTorrent Client on CentOS 6

In this tutorial we will show you how to install and configuration of Transmission on your CentOS 6 server. For those of you who didn’t know, Transmission BitTorrent Client features a simple interface on top of a cross-platform back-end. Transmission is licensed as a free software under the terms of the GNU General Public License (GPL), with parts under the …

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ConfigServer Firewall : Error starting CSF /sbin/ifconfig (ifconfig binary location) -v does not exist!

Having such issue starting/stopping CSF on RHEL/CentOS 7? # csf -x *WARNING* URLGET set to use LWP but perl module is not installed, reverting to HTTP::Tiny You have an unresolved error when starting csf: Error: /sbin/ifconfig (ifconfig binary location) -v does not exist!, at line 2510 in /usr/sbin/csf You need to restart csf successfully to remove this warning, or delete …

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Error: Could not open command file ‘/usr/local/nagios/var/rw/nagios.cmd’ for update!

If you’re updating nagios, and/or you are trying to reschedule checks manually, and you get the error below: Error: Could not open command file ‘/usr/local/nagios/var/rw/nagios.cmd’ for update! Then it means that the permissions on the folder are messed up. Don’t bother setting up the permissions on the file itself, nagios.cmd,  since that file gets recreated very often, so: chown nagios.nagcmd …

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Installing Plex Media Server on Centos 6

Plex Media Server is a user-friendly way to store all your movies, shows, and other media in one place–and make it accessible from any device, whether you’re at home or on-the-go. If you’re looking for a no-headache way to watch your movies anywhere, this is it. What Is Plex Media Server? Here’s a common situation that all too many people find themselves …

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ConfigServer Firewall : Binary location for [/usr/bin/host] in csf.conf is either incorrect, is not installed or is not executable

The following error may occur while reloading CSF (csf -r) : *WARNING* Binary location for [HOST] [/usr/bin/host] in /etc/csf/csf.conf is either incorrect, is not installed or is not executable *WARNING* Missing or incorrect binary locations will break csf and lfd functionality In this particular case, CSF was installed on a CentOS 7 server and there wasn’t any “host” executable under /usr/bin. …

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