The Spoofaudit network auditing tool will help you to determine what basic spoofing filters (rfc2827 & rfc3013) are present between two test points on two networks, and what anti-spoofing filters are missing. The tools are designed to work between endpoints that would not normally have filtering between them except anti-spoofing filters.
pam_eps is a PAM module that allows you to authenticate users against a remote server with a ssh daemon enabled. If the user exists in local machine, he is allowed entry. But if the user doesn't exist (yet exists in the remote machine and the password supplied is correct), a new user with that pass and logname will be created.
Gircap is a set of tools to help you use the widely unknown "capabilities" that Linux has in place of conventional Unix superuser privilege. That means you can give programs and processes only as much privilege as they need and greatly limit your security exposure due to system bugs. A Linux kernel patch fixes some basically broken aspects of capabilities. setcap and getcap let you set and show capabilities of a running process. capexec runs a program with certain capabilities, UID, GID, and supplemental GIDs. It can be used to have init start a daemon with only a subset of init's privileges. binfmt_capx is an executable interpreter in the form of a loadable kernel module. It lets you do a setuid kind of thing for files, only with fine grained capabilities. This is a cheap substitute for real "file capabilities."
Foremost is a console program that recovers files based on their headers, footers, and internal data structures. This process is commonly referred to as data carving. Foremost can work on image files, such as those generated by dd, Safeback, Encase, etc., or directly on a drive. The headers and footers can be specified by a configuration file, or you can use command line switches to specify built-in file types. These built-in types look at the data structures of a given file format, allowing for a more reliable and faster recovery. It was originally developed by the United States Air Force Office of Special Investigations and The Center for Information Systems Security Studies and Research.
The Openwall Linux kernel patch is a collection of security "hardening" features for the Linux kernel. In addition to the new features, some versions of the patch contain various security fixes. The "hardening" features of the patch, while not a complete method of protection, provide an extra layer of security against the easier ways to exploit certain classes of vulnerabilities and/or reduce the impact of those vulnerabilities. The patch can also add a little bit more privacy to the system by restricting access to parts of /proc so that users may not see what others are doing.
Moqui Framework is a seamlessly integrated, enterprise-ready framework for building enterprise automation applications based on Java. It includes tools for database interaction (relational, graph, document), logic in local and Web services, Web and other UIs with screens and forms, security, file/resource access, scripts, templates, localization, caching, logging, searching, business rules, workflow, multi-tenancy, and integration.