The following will guide you into creating a linux based Minecraft server, the example is running on a Ubuntu 12.04 box however this should work any similar distro. First if all we need to make sure that you have java installed, use the command below to do this. If you
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Install and configure VNC Server for Redhat/CentOS
This article explains how to install and configure VNC Server for Redhat or CentOS. This is the preferred graphical way to remotely manage a Redhat system. Our objective in this tutorial is to allow two users to log in via VNC; the “root” user and the “agix” user. Both will
Read moreInstall VMWare Tools on Redhat/CentOS
This article explains how to install VMWare Tools on a CentOS or Redhat system. Consider taking a snapshot of the guest first as the installer plays around with the kernel. From within the VMWare client on your Windows system, right click on the virtual machine and choose “Guest” and then
Read moreInstall Gatling Website Stress-Tester on CentOS 6/Redhat 6
Gatling is a website stress-testing tool. It runs on Java so you need to install JRE7. This article is based on CentOS 6.4. Note that “good” documentation for Gatling basically doesn’t exist. The website (http://gatling-tool.org/) doesn’t have much information and i can’t find anything significant elsewhere. So here are my
Read moreSudo Without a Password & Restricted Commands/Groups – CentOS and Redhat
This article explains how to use SUDO without being prompted for the password. We can restrict which users and/or groups can do this. As root, edit the file “/etc/sudoers”. Add the line: agix ALL=(ALL) NOPASSWD: ALL The above means that the user “agix” can use sudo without being prompted for
Read moreUsing Varnish to “Cap” Server Load – Redhat/CentOS
This article demonstrates how to Cap or Limit the load on a Web Server using Varnish. The idea here is to specify a timeout value which, if exceeded, the web surfer will be diverted to a customised error page. By adjusting the timeout value, the administrator can choose what kind
Read moreInstall Cobbler on CentOS/Redhat
This article explains the installation process for Cobbler on CentOS 6.4 64bit. Install Cobbler and the other services. TIP, you need the EPEL repo available: yum install cobbler* tftp* httpd Edit the “/etc/xinetd.d/tftp” file to enable the TFTPd service: service tftp { socket_type = dgram protocol = udp wait =
Read moreVarnish Cache as a Load Balancer on CentOS/Redhat
This article explains how to configure the Varnish Cache as a load balancer. In other words, you have two Web Servers with a Varnish server in-front of them. As illustrated below: Internet -> Varnish -> Web Server 1 -> Web Server 2 Varnish does it’s load balancing in a round-robin
Read moreInstall Puppet Server & Client on Redhat & CentOS 6
This article explains how to install the Puppet server (also known as the PuppetMaster) and client on a Redhat or CentOS server. Note that Puppet uses TCP ports 8140, 61613, and 443. First add the Puppet repo on both the puppet client and server systems. The following link has several
Read moreConfigure Varnish Cache for Multiple Domains – CentOS/Redhat 6
This article applies to Varnish 3. This article explains how to configure the Varnish Cache to cache for multiple domains on the same backend server. I’ve used CentOS 6.2 for this example. In this example, Varnish is listening on TCP port 80. The DNS “www” “A” record for the domains
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