Cloonix is a Linux router and host simulation platform. It fully encapsulates application, host, and network l2 and l3 into a relatively easy-to-use simulation GUI. Network delay and loss characteristics can be configured per link. It provides support for running kvm or UML virtual machines configured into an arbitrary complex network configuration. It is possible to run a 12 router UML simulation on a small x86 host (a P4 with 512 MB RAM). 32- and 64-bit KVM machines are provided.
IPv6 CARE, "IPv6 Compliant Automatic Runtime Environment", provides an environment where applications instantly become IPv6-compliant ('patch' mode, see RFC6535). It can also generate a diagnosis about the IPv6 compliance of an application ('check' mode). It uses an LD_PRELOAD-based library injection technique.
MPI Parallel Environment (MPE) is a software package for MPI (Message Passing Interface) programmers. It provides users with a number of useful tools for their MPI programs such as a set of profiling libraries that collect information about the behavior of MPI programs, graphical trace file analyzers, serializers, type checkers, collective operations validators, etc.
simena-io is a Linux tool written in Perl and designed to show ethernet interface statistics in bits/second and packets/second in real time. It requires at least Linux kernel 2.2 and Perl 5. It does not require a root account. There is only one command parameter: the refresh rate in seconds. If no parameter is provided, simena-io will refresh every 2 seconds by default. Detailed documentation can be obtained by running "perldoc simena-io".
CkFormLogin is a plug-in for the Nagios network monitoring system that makes it more useful in the context of secured Web sites (with login forms) and access management/single sign-on protected environments. Originally developed to monitor Web applications that require authenticated access, it works by simulating an actual user login to verify each and every step in the process. It can be used to continuously verify the "end-user" functionality of secured Web sites, detect outages in commercial access management products or externalized security plug-ins, and quickly verify security system stability after large configuration changes.
NTMF is a C++ framework for developing software that requires the manipulation of packets traversing a system. The main application areas are protocol testing, protocol implementation testing, network emulation, and network monitoring. It has support for link level packet capturing (using libpcap), link level packet injection, and network level packet injection for IPv4 packets (using lipnet). It supports multi-threaded execution, provides thread-safe packet queues, and provides a dynamic Finite State Machine representation.
TRIPP is a utility to rewrite incoming and outgoing IP packets. Since it can rewrite both headers and payload, it can be used to configure the TCP/IP stack behavior in order to perform various tasks mainly intended for network tests, simulations, and development. It is configured via a small rule-based language, which allows the user to intercept packets, set arbitrary header values, increment or decrement numeric header fields, set an arbitrary payload, rewrite parts of the payload, or fragment, delay, multiply, or drop packets. It is totally user-level and doesn't require a kernel module.