Free twisted pair software for linux

Twisted is a framework, written in Python, for writing networked applications. Twisted includes implementations of a number of commonly used network services such as a web server, an IRC chat server, a mail server, a relational database interface and an object broker.
Developers can build applications using all of these services as well as custom services that they write themselves. Twisted also includes a user authentication system that controls access to services and provides services with user context information to implement their own security models.
Main features:
- Pluggable event loops allowing the developer to take advantage of platform-specific capabilities.
- Abstractions of protocols and transports.
- Through Twisted Spread, mechanisms for network encoding of data (in Python, Java, ELisp, and other languages), to a full-blown distributed object system.
Twisted is an integration point for network services that were previously unable to interoperate. Services within a Twisted server can communicate with each other and share information providing a very integrated programming environment that can re-use large amounts of infrastructure across multiple network mediums (such as chat, web, and mail).
As well as servers, Twisted supports several different kinds of clients and GUIs. This means that the client can re-use large portions of the servers code, improving test coverage and reliability while reducing code size.
Twisted is a collection of servers and clients, which can be used either by developers of new applications or directly.
Enhancements:
- This release includes many fixes for UDP and multicast stdio on Win32.
- Many bug fixes were made for Trial, and its support for a large number of previously deprecated APIs was dropped.
- Deferred Generators no longer leak their final result or exception.
- LoopingCall now supports functions which return Deferreds.
- A cooperative scheduler with pluggable policies has been added.
- Much of the API documentation has been improved and a new guide for developing producers and consumers has been added.
- This also includes new releases of Conch, Mail, Names, Words, and Web.

Twisted Names project is both a domain name server as well as a client resolver library.
Twisted Names comes with an "out of the box" nameserver which can read most BIND-syntax zone files as well as a simple Python-based configuration format.
Twisted Names can act as an authoritative server, perform zone transfers from a master to act as a secondary, act as a caching nameserver, or any combination of these.
Twisted Names client resolver library provides functions to query for all commonly used record types as well as a replacement for the blocking gethostbyname() function provided by the Python stdlib socket module.
Twisted Names is available under the MIT Free Software licence.
Enhancements:
- Errors in the markup used in API documentation have been fixed.
- A bug where the DNS client would sometimes drop a response has been fixed.
- A bug which prevented non-IN lookups from generating malformed queries has been fixed.

Twisted Web includes an HTTP/1.0 protocol implementation for both servers and clients. Twisted Web also includes a resource framework for implementing rich, dynamic web applications. It includes support for authentication either via HTTP AUTH, session URLs, or session cookies.
It supports CGIs and a custom PB-based distribution mechanism for serving content from separate, persistent processes. It includes SOAP and XML-RPC support for both clients and servers. It also makes it particularly easy to deploy new servers with novel or ephemeral use-cases, often with only a single short command.
Enhancements:
- This release adds HTTP Basic auth support for XML-RPC clients, and fixes several date, time, and If-Modified-Since header parsing corner-cases.
- Various performance improvements have been made, and support for CGIs broken in a few specific ways has been improved.

Twisted Storage is an application that will take your data and manage it for you, just like a file system. But Twisted Storage goes way beyond what a normal file system does.
What types of "objects" are stored in Twisted Storage : just regular files. The data stored in the system is expected to be fixed content, meaning it doesnt change at all. If you read the data back, change it, and store it, it is considered a different file. There are plenty of examples of fixed content data : emails you received, movies or mp3 files you made or own, documents you wrote, etc. In fact it is estimated that 80% of the data you have on your computer is fixed, reference data.
Your Twisted Storage system can start out small - a single computer with a few disk drives. When you need more storage you can add more disk drives and more computers. But it has been designed to store petabytes worth of data without requiring any special hardware. For example storing a petabyte worth of data, using the biggest disk drives available today (500 GB), would require 2000 disk drives. To overcome the need of special hardware, Twisted Storage is a scalable, distributed system using ordinary commodity computers. Even so that petabyte of data would require 500 computers networked together and that requires special handling.
Twisted Storage has a few features you wont find in any file system. For example once a file is added to the Twisted Storage repository it can be written in multiple locations simultaneously. The system has been designed to be compliant with Sarbanes-Oxley Act: when an object is added to the repository you can no longer delete it and the integrity of the contents are guaranteed. In addition any access to the object is recorded.
Main features:
Scalable to thousands of servers and multiple petabytes of data.
- Regardless of how much data you want to store,Twisted Storage is designed to handle it. The system can grow from one computer and a few disks to hundreds of systems and thousands of disk drivers.
Automatic data recovery without human intervention.
- Twisted Storage doesnt require backup/restore software or procedures. All data written to the system is recorded in multiple locations.
No special disaster recover procedures.
- So long as you have your systems in physically different locations and you have instructed the software to write the multiple copies to those systems, you have no-hassle disaster recover. If one of the sites goes down, the system will retrieve any data from the other systems. Additionally, once the disaster site is up and running, the system will automatically restore the data to the it.
Simplified configuration.
- To ease management of the system, you can change any one systems configuration and have it ripple through out the system.

mpiBLAST is an MPI based parallel implementation of NCBI BLAST. The project consists of a pair of programs that replace formatdb and blastall with versions that execute BLAST jobs in parallel on a cluster of computers with MPI installed. There are two primary advantages to using mpiBLAST versus traditional BLAST.

First, mpiBLAST splits the database across each node in the cluster. Because each nodes segment of the database is smaller it can usually reside in the buffer-cache, yielding a significant speedup due to the elimination of disk I/O. Second, it allows BLAST users to take advantage of efficient, low-cost Beowulf clusters because interprocessor communication demands are low.

mpiBLAST achieves super-linear speedup in situations where the database is too large to fit into RAM, and near linear speedup in other situations. It does not require a dedicated cluster.

This tool uses multicast to find potential partners and TCP to actually "pair up" with them, meaning that both "sides" will know who their partner is. In addition, partners are given an "active" or "passive" designation which can be used to start client/server applications without further negotiation.

This tool is meant to be used from scripts that perform network benchmarking, automated software testing or similar activities.

Requirements:

• x86, x86_64 and alpha platforms running Linux 2.6

The bastard disassembler is a disassembler written for x86 ELF targets on Linux. Other file formats/CPUs can be plugged in. It has a command-line interface and is meant to be used as a backend or engine. Support for controlling the disassembler via pipes is provided. Note that this disassembler does not rely on libopcodes to do its disassembly. Rather, the libi386 plugin is a standard .so that can be reused by other projects.

This interpreter can be used interactively, it can be fed commands via STDIN [just like a scripting interpreter], and it can be communicated with via a pair of FIFOs. Now, on top of this any number of UI front ends can be stacked -- ncurses console front ends, Gtk X front-ends, Tk front ends, etc. It is the reponsibility of the front-ends to display the information obtained by querying the disassembler, supplying syntax highlighting, displaying strings, xrefs, etc; however the disassembler will retain all of this information, do all of the brute processing, and will provide any of the information when requested.