OpenConnect server (ocserv) is an SSL VPN GNU/Linux server. Its purpose is to be a secure, small, fast, and configurable VPN server which depends on standard protocols like TLS 1.2 and Datagram TLS. It implements the AnyConnect SSL VPN protocol and is compatible with the OpenConnect VPN client (compatibility with other Anyconnect SSL VPN clients is experimental).
XRoar is a cross-platform emulator for the Dragon 32, Dragon 64, and Tandy CoCo computers, all originally released in the early '80s. The emulator runs under Unix-like operating systems (including Mac OS X) and Windows, with older versions available for handhelds like the Nintendo DS and GP32.
The Enhanced TightVNC Viewer, SSVNC, adds encryption security to VNC connections. The package provides a GUI for Windows, MacOS X, and Unix that automatically starts up an STUNNEL SSL tunnel for SSL or ssh/plink for SSH connections to any VNC server and then launches the VNC Viewer to use the encrypted tunnel. On Unix and MacOS X, a VNC viewer with many new features is provided. The short name for this project is "ssvnc", for SSL/SSH VNC viewer.
RCP100 is a modular router control plane for Linux platforms. It can be used as a standalone router, or it can be deployed as an embedded router in a virtualized environment. The modular architecture allows rapid introduction of new features and functionality, including support for custom hardware. It features a command line interface, Web interface, Telnet, FTP, and TFTP access, an NTP client and server, a DNS proxy cache, a DHCP relay, static routes, blackhole routes, static ARP, proxy ARP, RIP version 2 (RFC 2082, RFC 2453), OSPF version 2 (RFC 2328), and Access Control Lists.
conntrack-tools is a set of userspace tools for Linux that allow system administrators to interact with the Connection Tracking System, the module which provides stateful packet inspection for iptables. It includes the userspace daemon conntrackd and the commandline interface conntrack.
Debian packaging utilities for Truecrypt source helps to get Truecrypt running with a minimum of effort under Debian-based Linux systems (Debian and Ubuntu are officially supported). Truecrypt is an open source disk encryption software which uses a concept of containers to store encrypted data. The containers (or volumes) can be read transparently under Linux and Windows. The utilities create installable *.deb packages from the sources and those debs can be used in turn to install the encryption software.
Sanewall is a firewall builder for Linux that uses an elegant language abstracted to just the right level. This makes it powerful and easy to use, audit, and understand. It allows you to create very readable configurations even for complex stateful firewalls. Sanewall can be used for almost any purpose, including control of any number of internal/external/virtual interfaces, control of any combination of routed traffic, setting up DMZ routers and servers, all kinds of NAT, providing strong protection (flooding, spoofing, etc.), transparent caches, source MAC verification, blacklists, and whitelists. Newer versions abstract the differences between IPv4 and IPv6, allowing you to define a common set of rules for both, while permitting specific rules for each as you need. Sanewall is a fork of FireHOL and can make use of existing FireHOL configurations.