Nick Ramirez Nick Ramirez | Nov 13, 2020 | BASICS, LOAD BALANCING / ROUTING
HAProxy can run in two different modes: TCP or HTTP. When operating in TCP mode, we say that it acts as a layer 4 proxy. In HTTP mode, we say that it acts as a layer 7 proxy. To understand the difference, you must first learn about the Open Systems Interconnection...
Baptiste Assmann Baptiste Assmann | Apr 22, 2013 | LOAD BALANCING / ROUTING, TECH
Well, this is roughly the same! Depends on people, environment, products, etc… I may use both of them in this article, but be aware that both of them points to the IP that is being used to get connected on the service whose being load-balanced. Load Balancing...
Baptiste Assmann Baptiste Assmann | Jan 4, 2013 | LOAD BALANCING / ROUTING, TECH
Introduction to Microsoft Exchange 2013 There are 2 types of server in Exchange 2013: * Mailbox server * Client Access server Definitions from Microsoft Technet website: * The Client Access server provides authentication, limited redirection, and proxy services, and...
Baptiste Assmann Baptiste Assmann | Mar 29, 2012 | LOAD BALANCING / ROUTING, TECH
To ensure high availability and performance of Web applications, it is now common to use a load-balancer. While some people uses layer 4 load-balancers, it can be sometime recommended to use layer 7 load-balancers to be more efficient with HTTP protocol. NOTE: To...
Baptiste Assmann Baptiste Assmann | Jul 29, 2011 | TECH
The tunnel mode looks like the Direct Server Return mode, except that traffic between the load-balancer and the server can be routed. The load-balancer encapsulates the request in an IP tunnel to the server. The server recover the client request from the loadbalancer,...
