The anonymizing relay monitor (arm) is a command-line

Command-line interface

A command-line interface is a mechanism for interacting with a computer operating system or software by typing commands to perform specific tasks...

 status monitor for the Tor anonymity network

Tor (anonymity network)

Tor is a system intended to enable online anonymity. Tor client software routes Internet traffic through a worldwide volunteer network of servers in order to conceal a user's location or usage from someone conducting network surveillance or traffic analysis...

. This functions much like top

Top (Unix)

top is a program found in many Unix-like operating systems. It produces an ordered list of running processes selected by user-specified criteria, and updates it periodically. Default ordering by CPU usage, and only the top CPU consumers shown top shows how much processing power and memory are...

 does for system usage, providing real time statistics for:

• resource usage (bandwidth, cpu, and memory usage)
• general relaying information (nickname, fingerprint, flags, or/dir/controlports)
• event log with optional regex
  Regular expression
  In computing, a regular expression provides a concise and flexible means for "matching" strings of text, such as particular characters, words, or patterns of characters. Abbreviations for "regular expression" include "regex" and "regexp"...
  
   filtering and deduplication
• connections correlated against tor's consensus data (ip, connection types, relay details, etc)
• torrc configuration file with syntax highlighting and validation

Most of arm's attributes are configurable through an optional armrc configuration file. It runs on any platform supported by curses

Curses (programming library)

curses is a terminal control library for Unix-like systems, enabling the construction of text user interface applications.The name is a pun on the term “cursor optimization”. It is a library of functions that manage an application's display on character-cell terminals .- Overview :The curses API...

 including Linux

Linux

Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds...

, Mac OS X

Mac OS X

Mac OS X is a series of Unix-based operating systems and graphical user interfaces developed, marketed, and sold by Apple Inc. Since 2002, has been included with all new Macintosh computer systems...

, and other Unix-like

Unix-like

A Unix-like operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification....

 variants.

The project began in the summer of 2009 and since July 18th, 2010 it has been an official part of the tor project

Tor (anonymity network)

Tor is a system intended to enable online anonymity. Tor client software routes Internet traffic through a worldwide volunteer network of servers in order to conceal a user's location or usage from someone conducting network surveillance or traffic analysis...

. It is free software

Free software

Free software, software libre or libre software is software that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with restrictions that only ensure that further recipients can also do...

, available under the GNU General Public License

GNU General Public License

The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....

.

See also

• Tor
  Tor (anonymity network)
  Tor is a system intended to enable online anonymity. Tor client software routes Internet traffic through a worldwide volunteer network of servers in order to conceal a user's location or usage from someone conducting network surveillance or traffic analysis...
  
  
• Vidalia
  Vidalia project
  Vidalia is a cross-platform controller GUI for Tor, built using the Qt. It allows the user to start, stop, and view the status of Tor; monitor bandwidth usage; view, filter, and search log messages; and configure some aspects of Tor...