Ncdc is a client for the Direct Connect peer-to-peer protocol implemented using ncurses. It is known for its smaller footprint and ease of use.

The Pureos distribution signs its packages. This package contains the archive keys used for that.

The Debian project digitally signs its Release files. This package contains the archive keys used for that.

The Debian ports-archive digitally signs its Release files. This package contains the archive keys used for that.

The Pardus distribution signs its packages. This package contains the archive keys used for that.

The Kali distribution signs its packages. This package contains the archive keys used for that.

This package provides a number of utilities which are mostly for use in installation scripts of Debian packages. The programs included are add-shell, installkernel, ischroot, remove-shell, run-parts, savelog, tempfile, and which.

The Trisquel distribution signs its packages. This package contains the archive keys used for that.

pbuilder is a personal package builder for Debian packages.

• pbuilder constructs a chroot system, and builds a package inside the chroot. It is an ideal system to use to check that a package has correct build-dependencies. It uses apt extensively, and a local mirror, or a fast connection to a Debian mirror is ideal, but not necessary.

• pbuilder create uses debootstrap to create a chroot image.

• pbuilder update updates the image to the current state of testing/unstable/whatever.

• pbuilder build takes a *.dsc file and builds a binary in the chroot image.

• pdebuild is a wrapper for Debian Developers, to allow running pbuilder just like debuild, as a normal user.

The Elxr distribution signs its packages. This package contains the archive keys used for that.

This package only provides the bts script from the Debian devscripts archive. It's useful for Guix Developers that interact with GNU's debbugs server.

This package mainly meant for caching packages of Debian or Debian based distributions (like Trisquel) through HTTP. It also has partial support for HTTPS and other distributions / repositories (OpenSUSE, Arch Linux, Sourceforge mirror network, Cygwin mirrors) as this requires more configuration and comes with some limitations. Packages can be imported manually either by copying files from another apt-cacher-ng instance or by importing them from CD, DVD, jigdo, etc. While apt-cacher-ng can work offline, it requires some online access before that to build valid index files. It also supports partial mirroring. It can be configured through configuration files and/or a web interface and/or a command line tool.

Reprepro is a tool to manage a repository of Debian packages (.deb, .udeb, .dsc, ...). It stores files either being injected manually or downloaded from some other repository (partially) mirrored into one pool/ hierarchy. Managed packages and files are stored in a Berkeley DB, so no database server is needed. Checking signatures of mirrored repositories and creating signatures of the generated Package indices is supported.

Debootstrap is used to create a Debian base system from scratch, without requiring the availability of dpkg or apt. It does this by downloading .deb files from a mirror site, and carefully unpacking them into a directory which can eventually be chrooted into.

apt-mirror is a small tool that provides the ability to selectively mirror APT sources, including GNU/Linux distributions such as Debian and Trisquel.

This package provides the low-level infrastructure for handling the installation and removal of Debian software packages.

The Ubuntu project digitally signs its Release files. This package contains the archive keys used for that.

QEMU is a generic machine emulator and virtualizer. This package of QEMU is used only by the american fuzzy lop package.

When used as a machine emulator, QEMU can run OSes and programs made for one machine (e.g. an ARM board) on a different machine---e.g., your own PC. By using dynamic translation, it achieves very good performance.

When used as a virtualizer, QEMU achieves near native performances by executing the guest code directly on the host CPU. QEMU supports virtualization when executing under the Xen hypervisor or using the KVM kernel module in Linux. When using KVM, QEMU can virtualize x86, server and embedded PowerPC, and S390 guests.

rr is a lightweight tool for recording, replaying and debugging execution of applications (trees of processes and threads). Debugging extends GDB with very efficient reverse-execution, which in combination with standard GDB/x86 features like hardware data watchpoints, makes debugging much more fun.

Stress Make is a customized GNU Make that explicitly manages the order in which concurrent jobs are run to provoke erroneous behavior into becoming manifest. It can run jobs in the order in which they're launched, in backwards order, or in random order. The thought is that if code builds correctly with Stress Make, then it is likely that the Makefile contains no race conditions.

The libbacktrace library can be linked into a C/C++ program to produce symbolic backtraces.

Delta assists you in minimizing "interesting" files subject to a test of their interestingness. A common such situation is when attempting to isolate a small failure-inducing substring of a large input that causes your program to exhibit a bug.

C-Vise is a Python port of the C-Reduce tool that is fully compatible and uses the same efficient LLVM-based C/C++ clang_delta reduction tool.

American fuzzy lop is a security-oriented fuzzer that employs a novel type of compile-time instrumentation and genetic algorithms to automatically discover clean, interesting test cases that trigger new internal states in the targeted binary. This substantially improves the functional coverage for the fuzzed code. The compact synthesized corpora produced by the tool are also useful for seeding other, more labor- or resource-intensive testing regimes down the road.