This article is part one of a two part series that covers setting up a hosting server using gitosis for your central repository, and in the next article, taking an existing SVN repository and running the appropriate scripts and commands necessary to migrate it into something git can work with.
Continue reading
This tutorial provides step-by-step instructions on how to install Xen (version 3.0.3) on a CentOS 5.3 (x86_64) system.
Continue reading
This tutorial shows how you can mirror your web site from your main web server to a backup server that can take over if the main server fails. We use the tool rsync for this, and we make it run through a cron job that checks every x minutes if there is something to update on the mirror. Thus your backup server should usually be up to date if it has to take over.
Continue reading
This tutorial shows how to set up a two-node Apache web server cluster that provides high-availability. In front of the Apache cluster we create a load balancer that splits up incoming requests between the two Apache nodes. Because we do not want the load balancer to become another “Single Point Of Failure”, we must provide high-availability for the load balancer, too. Therefore our load balancer will in fact consist out of two load balancer nodes that monitor each other using heartbeat, and if one load balancer fails, the other takes over silently.
Continue reading
I don’t really understand why people use namespaced models. I see ActiveRecord models as DSL for database. There is no concept of namespacing in Database, then why should you have them with models ? Apart from that, they are very buggy too !
Continue reading
Securing your blog is one of the most important things you could do. Producing content is essential, and so is promoting it, but if your blog is not secure, you could lose everything overnight (literally!).
Continue reading
Want to backup your MySQL databases to another machine on a nightly basis?
Continue reading
In this tutorial I will show you how to install GlusterFS in a scalable way to create a storage cluster, starting with 2 servers on Centos 5.2. Files will be replicated and splitted accross all servers which is some sort of RAID 10 (raid 1 with < 4 servers). With 4 servers that have each 100GB hard drive, total storage will be 200GB and if one server fails, the data will still be intact and files on the failed server will be replicated on another working server.
Continue reading
GlusterFS is a clustered file-system capable of scaling to several peta-bytes. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system. Storage bricks can be made of any commodity hardware such as x86-64 server with SATA-II RAID and Infiniband HBA.
Continue reading
First you need to install some software :
Recent Comments