CacheGuard Appliance is an all-in-one OS appliance providing firewall, antivirus, caching, compression, bandwidth allocation, load balancing, reverse and forward proxy, high availability, Web application firewall, URL guarding, and more. It can be purchased as an OS to install on your server, as an OS to run in a virtual machine, or as a hardware appliance.
eSMSd is a simple daemon for connecting a Gnokii-handled mobile phone with SQL database into a SMS gateway. It bears great simplicity, and is therefore suitable for custom projects and smaller businesses, but is still powerful enough to handle larger loads. The project is intended as a replacement for Gnokii's SMSd, but is much simpler (therefore great for hacking, learning, and SMS magic) and also a little more portable (SMSd tends to crash on AMD-64).