AirFart is a wireless tool created to detect wireless devices, detect their signal strengths, and present them to the user in an easy-to-understand fashion. It is written in C/C++ with a GTK front end. Airfart supports all wireless network cards supported by the linux-wlan-ng Prism2 driver.
AlarmMon is an alarm monitoring system for TCP/IP networks. It consists of an "alarm" client, an "alarmsvr" server, and several agents that work with a central registration database. It can track the status of verious services, including BIND, Sendmail, and modems, and send notifications by email, SMS, or pager.
Alerttail monitors a given file and executes a list of actions when a user-defined text pattern has been written to the file. For example, the user can pop up a GTK notification window when a certain message is written to a log file. Actions can be alerttail built in actions (GTK notify action, geoipLocalization action, or filtering text action) or a custom user defined shell command action. A Qt 4 GUI frontend helps with configuration.
Anteater is a log analyser for MTA logfiles (such as those produced by sendmail and postfix). The tool is written in 100% C++ and is very easy to customize. Input, output, and the analysis are modular class objects with a clear interface. Currently, there are modules for reading the syslog format of sendmail and postfix that do up to eight useful analyses and write the result in plain ASCII or HTML, to stdout or to files.
Aradial RADIUS Server is a high performance RADIUS server with Tier 1 levels of reliability and scalability. It supports the latest RFCs, vendor specific attributes, and NAS templates, and has a multitude of pre-configured settings that support most access servers on the market today. It is based on a plugin architecture, which allows customization of the authentication and accounting logic outside of the core product. It is integrated with top billing solutions for ISP, WISP, Wifi, Hotspots, and VoIP.
Audiolog is a small tool for analyzing traces or logfiles in real time and producing sound events. It always reads line by line from standard input. In a configuration file, you configure regular expressions. If audiolog reads a line matching a certain expression, it plays a note. You can specify the pitch and duration of that note. This allows you to hear your network traffic.