It's not Open Source, but it shares its spirit:
Why is it important to measure the internal maximum bandwidth of your machine ?
Which 10GbE NICs do we recommend ?
How can 10GbE load balancing performance be measured ?
How to build a 10GbE load balancer with BalanceNG

Apache: mod_athena
http://code.google.com/p/ath/

Full featured application load balancer for reverse proxy apache httpd mod_proxy.

Total downloads: 6,816,853 Quality score: 5.0 haproxy. Configure HAProxy for a reverse-proxy load-balancing demo with Apache web server cluster. $ cd haproxy-rest $ haproxy -f resources/haproxyinit.cfg -p resources/haproxy-private.pid -sf $(cat resources/haproxy-private.pid) Build the program and run it. $ go build $./haproxy-rest If you're on Mac OSX or Windows and want to compile for Linux (which is probably the OS you're using to run HAproxy.

Apache: mod_proxy_balancer
http://httpd.apache.org/docs/2.1/mod/mod_proxy_balancer.html

mod_proxy and related modules implement a proxy/gateway for Apache HTTP Server, supporting a number of popular protocols as well as several different load balancing algorithms. Third-party modules can add support for additional protocols and load balancing algorithms.

Balance
https://balance.inlab.net

Balanceis Inlab Network’s well known open source load balancing solution being a simple but powerful generic tcp proxy with round robin load balancing and failover mechanisms. Its behaviour can be controlled at runtime using a simple command line syntax.

Install HAProxy Enterprise Edition (HAPEE), which is a long-term maintained HAProxy package accompanied by a well-polished collection of software, scripts, configuration files and documentation which significantly simplifies the setup and maintenance of a completely operational solution; it is particularly suited to Cloud environments where.
Download Haproxy Time for free. Haproxy connection time log analyser. A log parser for Haproxy that provide connection time statistics. Haproxy log parser Embeded email reporting.
HAProxy forwards the user to the server node with the least load, which actually balances the load. HAProxy operates on Linux and Solaris. For Windows operating system try more advanced Nginx solution. If you need any assistance while configuring HAProxy or DataSunrise in high availability mode, please feel free to contact us.

Core Balance
http://core-balance.sourceforge.net/

Core Balance is a TCP Load Balancing proxy. It’s goal, unlike many load balancing proxies, is to balance based upon the node speed and available processing cores.

Haproxy For Windows Download Windows 7

Crossroads
http://crossroads.e-tunity.com/

Looks like being discontinued.

Distributor
http://distributor.sourceforge.net/

Distributor is a software TCP load balancer. Like other load balancers, it accepts connections and distributes them to an array of back end servers. Distributor is compatible with any standard TCP protocol (HTTP, LDAP, IMAP, etc.) and is also IPv6 compatible. Distributor has many unique and advanced features and a high-performance architecture.

Eddie (written in Erlang)
http://eddie.sourceforge.net/

Eddie is a high availability clustering tool. It is an open source, 100% software solution written primarily in the functional programming language Erlang (www.erlang.org) and is available for Solaris, Linux and *BSD.

Enhydra Director
http://forge.ow2.org/projects/director

Director is a collection of open source web-server plugins to provide loadbalancing, clustering and unified connection methods for different web-servers on different platforms. The Enhydra Director supports several popular Web servers and operating systems, including Apache (on Linux/Unix and Windows), Netscape Enterprise Server (on Linux/UNIX and Windows), and Microsoft Internet Information Server (on Windows). Director also supports several applications servers: Tomcat (v5.xx and v5.5x), Jetty and Enhydra Application server.

GLB: GitHub’s open source load balancer
https://githubengineering.com/glb-director-open-source-load-balancer/

GLB Director is a Layer 4 load balancer which scales a single IP address across a large number of physical machines while attempting to minimise connection disruption during any change in servers. GLB Director does not replace services like haproxy and nginx, but rather is a layer in front of these services (or any TCP service) that allows them to scale across multiple physical machines without requiring each machine to have unique IP addresses.

HAProxy
http://haproxy.1wt.eu/

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 standard opensource load balancer, is now shipped with most mainstream Linux distributions, and is often deployed by default in cloud platforms. Since it does not advertise itself, we only know it’s used when the admins report it 🙂

Linux Network Load Balancing
http://lnlb.sourceforge.net/

Haproxy Install

Linux Network Load Balancing is an open-source project (kernel module + userland app.) aimed to realize decentered network load balancing clusters between Linux boxes.

Linux Virtual Server (LVS)
http://www.linuxvirtualserver.org

The Linux Virtual Server is a highly scalable and highly available server built on a cluster of real servers, with the load balancer running on the Linux operating system. The architecture of the server cluster is fully transparent to end users, and the users interact as if it were a single high-performance virtual server.

Load Balancer Project
http://www.jmcresearch.com/projects/loadbalancer/

Load Balancer Project is an attempt of write a tool that allows to balance request using clusters of servers. The goal is to archieve high availability, load balancing with a simple configuration for the load balancer, and the network topology.

Neutrino
http://neutrinoslb.io/

Neutrino was build keeping the above requirements in mind. It is build in Scala language using Netty Server. It can do L7 routing using canonical names, url context and rule based. It has highly extensible pipeline architecture so that, new modules can be hooked into the pipeline without much work. Developers can add new switching rules and load balancing options easily. New modules can be added to send the log to API end point or load the configuration file from a DB or API. It is using JVM runtime environment, so developers can use either Java or Scala to add modules.

nginx
http://nginx.org

nginx [engine x] is an HTTP and reverse proxy server, a mail proxy server, and a generic TCP/UDP proxy server, originally written by Igor Sysoev. For a long time, it has been running on many heavily loaded Russian sites including Yandex, Mail.Ru, VK, and Rambler.

Octopus Load Balancer
http://sourceforge.net/projects/octopuslb/

Haproxy For Windows Download 64-bit

Octopus Load Balancer is an extremely fast TCP load balancer with extensions for HTTP to allow balancing based on URI. Features include: server health checks and load polling, dynamic configuration, and the ability to carbon copy incoming requests.

OpenLoBa
http://openloba.sourceforge.net/

OpenLoba was originally created for the VMware Ultimate Virtual Appliance Challenge , and was started on March 10, 2006.
I have been messing around with different ideas and working on small little projects here and there and wanted to make some sort
of project available to the public and the VMware Challenge was the push that got me started. So basically OpenLoBa is a bunch of open source tools put together to m