Connectreseller.com WHMSOLS Registrar module is an open-source plug-in that is distributed free of charge. It focuses on integrating ConnectReseller as a domain registrar at WHMSOLS.
After the integration you can setup ConnectReseller as the default registrar for your customers and decide which services and TLDs to offer to your customers from within the WHMSOLS admin area.
DirectAdmin is a graphical web-based web hosting control panel allowing administration of websites through a web browser. The software is configurable to enable standalone, reseller, and shared web hosting from a single instance.
