CentOS

Install MariaDB Galera Cluster on Centos 7

What is MySQL cluster and how to use it?MariaDB Galera Cluster is a synchronous multi-master cluster for MariaDB, available on Linux only, and only supports the XtraDB/InnoDB storage engines . It is designed to provide high availability and high throughput with low latency, while allowing for near linear scalability. MySQL Read more…

By Joe Conklin, ago
CentOS

MySQL Load Balancing using HAProxy

What is HAProxy and how to use it?HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic web sites and powers quite a number of the world's most visited ones. Over Read more…

By Joe Conklin, ago
Cisco Networking

VRF Import/Export Maps

What are VRF import/export maps and why to use it?VRFs are an excellent tool for maintaining segregated routing topologies for separate customers or services. However, what if you needed to export only a subset of routes within a VRF? Inter-VRF routing using route targets along with BGP are the mechanisms Read more…

By Joe Conklin, ago
Cisco Networking

BGP Route Filtering

What is route filtering and why to use it?In the context of network routing, route filtering is the process by which certain routes are not considered for inclusion in the local route database, or not advertised to one's neighbours. Route filtering is particularly important for use on large networks or Read more…

By Joe Conklin, ago
CentOS

HTTP Load Balancing using HAProxy

What is HAProxy Server and how to use it?HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic web sites and powers quite a number of the world's most visited ones. Read more…

By Joe Conklin, ago
Cisco Networking

Configuring Layer 3 MPLS VPN

What is a Layer 3 MPLS VPN and why to use it?Layer 3, or VPRN (virtual private routed network), utilizes layer 3 VRF (VPN/virtual routing and forwarding) to segment routing tables for each customer utilizing the service. The customer peers with the service provider router and the two exchange routes, Read more…

By Joe Conklin, ago