CentOS

Install MariaDB Galera Cluster on Centos 7

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 Cluster is implemented through the NDB or NDBCLUSTER Read more…

By Joe Conklin, ago
CentOS

MySQL Load Balancing using HAProxy

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 the years it has become the de-facto Read more…

By Joe Conklin, ago
Cisco Networking

VRF Import/Export Maps

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 to facilitate this.┬áThis kind of design is generally seen Read more…

By Joe Conklin, ago
Cisco Networking

BGP Route Filtering

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 on the Internet where it is used for Read more…

By Joe Conklin, ago
CentOS

HTTP Load Balancing using HAProxy

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 the years it has become the de-facto Read more…

By Joe Conklin, ago
Cisco Networking

Configuring Layer 3 MPLS VPN

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, which are placed into a routing table specific to the customer. Read more…

By Joe Conklin, ago