This tutorial will explain how to install aditional modules for the kernel to use with iptables rules sets (netfilter modules). Xtables-addons is the successor to patch-o-matic(-ng). Likewise, it contains extensions that were not, or are not yet, accepted in the main kernel/iptables packages. Xtables-addons is different from patch-o-matic in that you do not have to [...]

I just need Memcached to start automatically when reboot so that I don’t have to wait to log into the server to do that every time I restart my server. The problem here is that I didn’t install Memcached using YUM. I compiled Memcached it myself. So, there is no startup script for me to [...]

Q: How do I find out the maximum RAM supported by the Dell / HP / IBM / Oracle / Sun / Intel / AMD server under Linux / Unix / HP-UX / FreeBSD / Solaris operating systems without rebooting the server or opening server case (cabinet)? A: Most modern server supports 16GB, 32GB, 64GB [...]

This tutorial provides step-by-step instructions on how to install RSYSLOG server on Debian 6 (Squeeze) and how to send syslog data to it from multiple client servers. We will also show how to install an Apache webserver and a MySQL database server to gather the syslog data and how to install LogAnalyzer to easily browse [...]

Icinga is an enterprise grade open source monitoring system which keeps watch over networks and any conceivable network resource, notifies the user of errors and recoveries and generates performance data for reporting. It is a fork of Nagios. This tutorial explains how to serve the Icinga Web interface from an nginx server on Debian Wheezy/Ubuntu [...]

This guide provides an overview on how to monitor and manage IPMI Management Console with Verax NMS. The Intelligent Platform Management Interface (IPMI) is a standardized computer system interface used by system administrators to manage a computer system and monitor its operation. The guide is divided into following parts: Adding IPMI Management Console  to the [...]

This tutorial shows how you can monitor your Linux server with a tool from Bijk – with email and SMS alerts. Bijk is an open source application, for creating live graphs and alerts, thus monitoring your server performance. With the Basic version of Bijk, you can easily set up email alerts for monitoring almost everything [...]

Introduction The following script is using blogama.org IP geolocation API to automatically generate Apache .htaccess file to deny or allow specific countries. You can put this script under crontab and the .htaccess rules will be automatically updated. Also, it can update multiple .htaccess files. Source: http://blogama.org [ad#adgoogle1] Deny or allow? First you need to understand [...]

This tutorial describes how to install ImageMagick and imagik with jp2 support on CentOS 6.0. 1. First we have to remove imagemagick. yum remove ImageMagick 2. Now install some dependencies. yum install jasper-devel yum install jasper 3. Download tar.gz from www.imagemagick.org. cd /tmp wget ftp://mirror.aarnet.edu.au/pub/imagemagick/ImageMagick-6.7.3-1.tar.gz 4. Install: tar zxf ImageMagick-6.7.3-1.tar.gz cd ImageMagick-6.7.3-1 ./configure –prefix=/usr –with-modules [...]

This tutorial is for turning a single disk CentOS 6 system into a two disk RAID1 system. The GRUB bootloader will be configured in such a way that the system will still be able to boot if one of the hard drives fails (no matter which one). NOTE: Everything has to be done as root: [...]