Ubuntu Nvidia XGL Beryl Twinview How To is a document which describes how you can have a Linux System running Ubuntu (or any other Linux distro) with both XGL eye-candy effects and twinview from Nvidia in order to see your movies in your flat  32'' cd TV….

VLAN is an acronym for Virtual Local Area Network. Several VLANs can co-exist on a single physical switch, which are configured via software (Linux commands and configuration files) and not through hardware interface (you still need to configure switch). Hubs or switch connects all nodes in a LAN and node can communicate without a router….

Bonding allows you to aggregate multiple ports into a single group, effectively combining the bandwidth into a single connection. Bonding also allows you to create multi-gigabit pipes to transport traffic through the highest traffic areas of your network. For example, you can aggregate three megabits ports into a three-megabits trunk port. That is equivalent with…

Tomcat Cluster Session Replication how to is a document that describes how we can setup a tomcat 5.5 cluster with apache web server frontend using in-memory session replication. Tomcat 5.5.x has significant performance improvements than tomcat 5.0, mostly because of java 5 (from performance metrics taken with jmeter – http://jakarta.apache.org/jmeter/  about 50% faster in compilation…

You probably want to get your Solaris systems up to date. I rather like the tool smpatch. In order to use smpatch you first need to register the system.  You can register a system with the following procedure (http://sunsolve.sun.com/search/document.do?assetkey=1-9-82688-1 ):…

In Solaris 10, Sun decided to change a lot of things. One of them is the location of init scripts. Now /etc/rc?.d/script and /etc/init.d/script is no longer valid for most of the services.   Sun  changed all these "legacy" paths in order to perform faster boot process, as many init scripts can now initialized in…

SNMP MRTG for Windows HowTo is a guideline to install and see some performance metrics from windows nodes through mrtg.   Internet is full of great guides for Linux/Routers/UNIX mrtg integrations (ex. siliconvalleyccie)   On the other hand, there aren’t many performance metric tools for windows. In this example we will see how we can…

In order to have a dual monitor in ubuntu, using nvidia (pci express in my case) and s3 (pci), you have to do the following. In my case, i also use features such as english-greek keyboard switch and 7-button mouse (back/forward keys for firefox). Working system is an ubuntu breezer for amd64….

This howto will describe how you can easily setup a shoutcast server with any linux distribution (in this example we used Debian, but it's almost the same with any distro). With shoutcast you can broadcast any song that winamp / xmms play (mp3, wav etc) and broadcast to server via nullsoft shoutcast DSP plugin for…

    Linux Load Balancing Cluster HowTo is a document that describes how you can  create a failover cluster of Linux machines that acts as a load balancing mechanism between the real network and groups of other machines (real servers).     This setup will help someone to achieve high availability in many services plus the ability…