Patchman is a patch status monitoring tool for Linux systems. Patchman clients send a list of installed packages and enabled repositories to the server. The server (CLI or Web) tells the user which hosts require updates, whether those updates are normal or security updates, and shows installed packages that are not part of any repository. Hosts, packages, repositories. and operating systems can be filtered using features or arbitrary tags. For example, you can find out which hosts have a certain version of a package installed, and which repository it comes from. Patchman does not (yet) have the ability to update packages on hosts.
Buck-Security is a security scanner for Debian and Ubuntu Linux. It helps you to harden your system by running some important security checks. For example, it finds world-writable files and directories, setuid and setgid programs, superuser accounts, and installed attack tool packages. It also checks your umask and checks if the sticky bit is set for /tmp, among other checks.
The ERPXE project simplifies the process of installing and customizing a multi-boot PXE server. Over 100 different plugins are available for download, including Windows, WinPE, Hiren’s Boot CD, Acronis True Image, Symantec Ghost, FOG, Ubuntu, Debian, Fedora, CentOS, openSUSE, Gentoo, RIP Linux, Slackware, Backtrack, PartedMagic, and many more.