The MiniUPnP project is a library and a daemon. The library is aimed to enable applications to use the capabilities of a UPnP Internet Gateway Device present on the network to forward ports. The daemon adds the UPnP Internet Gateway Device functionality to a NAT gateway running OpenBSD/NetBSD/FreeBSD/Solaris with PF/IPF or Linux 2.4.x/2.6.x with netfilter. One of its most interesting features is to enforce some permissions to allow or deny redirections, bringing some security to UPnP. Newer versions also support the NAT-PMP protocol from Apple.
Gnash is a Flash movie player and Web browser plugin for Firefox, Mozilla, Konqueror, and Opera. Gnash supports many SWF v7 features and ActionScript3 classes. Gnash supports the majority of Flash opcodes up to SWF version 7, and a wide sampling of ActionScript classes for SWF version 8.5. Gnash also runs on many GNU/Linux distributions, embedded GNU/Linux, FreeBSD, NetBSD, OpenBSD, non x86-processors, and 64-bit architectures. There is also a standalone player for GNOME or KDE based desktops.