centos linux

Recently, I noticed something strange about Apache 2.2.3 version running on CentOS Linux 5 64 bit version. We have centralized NFS server and all 3 web server load balanced using hardware front end (another box running LVS). All Apache server picks up file via NFS i.e DocumentRoot is set over NFS. The small file such […]


Recently I wrote about installing and running Xcache under Red hat enterprise Linux and CentOS Linux. By default Xcache use /dev/zero for caching. All you have to do is create /dev/zero in chrooted jail. Type the following command (assuming that your jail is located at /lighttpd.jail directory): # mkdir -p /lighttpd.jail/dev # mknod -m 666 […]


Many people asked me to write about setting up Lighttpd under CentOS or RHEL 5 Linux using chroot() call. The instructions are almost same but you need to make little modification as compare to Debian / Ubuntu Linux instructions.


Xen is a free open source software virtual machine monitor for Intel / PowerPC architectures. It is software that runs on a host operating system and allows several guest operating systems to be run on top of the host on the same computer hardware at the same time (just like VMWare software). Luckily Installing and managing XEN is quite easy under CentOS 5 Linux.


Build 56528 is a release build of VMware Server 1.0.4. It is a maintenance bug fix release to address security issues. Upgrading VMWare server is a piece of cake under Redhat Enterprise Linux / CentOS Linux version 5.0. Please note that following instructions are tested on RHEL 4.5, 5.0 and CentOS Linux 5.0 only. You […]


One of my client runs dedicated NS1 and NS2 to host more than 3000+ domains. Recently they upgraded their servers to latest Dual Core Dual AMD server with CentOS 5.0 and BIND server. By default BIND / named will try to determine the number of CPUs present and create one thread per CPU. If it […]


This is a nice and step by step guide for installing Oracle database server under CentOS Linux. The guide has plenty of screenshots: During OS install both GNOME and KDE desktops were selected as well as all components of all available groups except “Virtualisation”, “Clustering”, “Cluster Storage” KDE Session has been selected for system login. […]