We will be setting up a load balancer using two main technologies to monitor cluster members and cluster services: Keepalived and HAProxy. Keepalived uses LVS to perform load balancing and failover tasks on active and passive LVS routers, while HAProxy performs load balancing and high-availability services to TCP and HTTP applications. Continue reading
Setting up a Load-Balancing LVS (Direct Routing) Cluster with Piranha
Article is heavily based on the previous one about Setting Up a Load-Balancing LVS (NAT) Cluster with Piranha, but this one aims to show how to configure an LVS cluster with direct routing rather than NAT.
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Setting up a Load-Balancing LVS (NAT) Cluster with Piranha
Linux Virtual Server (LVS) system offers a highly-available and scalable solution for production services using specialised routing and load-balancing techniques that can be configured through the Piranha configuration tool. Continue reading
Compile and Install Nasty on Debian
Nasty is a tool which can help us to recover a GPG passphrase. Continue reading
High Availability Concepts and Theory
High-availability clusters (also known as HA clusters or fail over clusters) are groups of computers that support server applications that can be reliably utilised with a minimum of down-time. Continue reading
Set up NFS Server on CentOS 6
Part 8 of setting up a Linux home lab environment with VirtualBox. Check this blog post for more info.
NFS server is used to make its data generally available to clients. Continue reading
Set up Puppet Server with Hiera on CentOS 6
Part 7 of setting up a Linux home lab environment with VirtualBox. Check this blog post for more info.
Open Source Puppet is a declarative, model-based configuration management solution that lets us define the state of our home lab infrastructure, using the Puppet language. Continue reading
Set up Spacewalk 2.4 on CentOS 6
Part 6 of setting up a Linux home lab environment with VirtualBox. Check this blog post for more info.
Spacewalk is an open source Linux systems management solution. It is the upstream community project from which the Red Hat Satellite products is derived. Continue reading
Set up Postfix to Relay Mail to an External SMTP Server on CentOS 6
Part 5 of setting up a Linux home lab environment with VirtualBox. Check this blog post for more info.
Postfix is a free and open-source mail transfer agent (MTA) that routes and delivers electronic mail. Continue reading
Set up DHCP Server on CentOS 6
Part 4 of setting up a Linux home lab environment with VirtualBox. Check this blog post for more info.
Dynamic Host Configuration Protocol (DHCP) is a network protocol that automatically assigns TCP/IP information to client machines. Each DHCP client connects to the centrally located DHCP server, which returns the network configuration (including the IP address, gateway, and DNS servers) of that client. Continue reading