Snowfence is a simple no-configuration-required Linux iptables firewall for the Sharp Zaurus. It limits the ability of potential attackers to access the Zaurus's services remotely while still allowing the Zaurus's legitimate local user to make use of the network and USB cradle as usual.
Trojan scan is a simple shell script that allows for simple but relatively effective checking for trojans, rootkits and other malware that may be using your server and network for unwanted (and possibly illegal) purposes. It works by listing all processes that use the Internet with the lsof command (using -Pni flags). This list is then transformed into signatures in the form of process_name:port_number:user. These signatures then are matched against the allowed process defined in the configuration. If any signatures of running processes are found that do not match the allowed signatures, an email report is sent including ps, ls, and optional lsof output.
prc utilises a pioneer control out port and a sound card to make the keypresses on a pioneer remote control available to the computer. With additional scripts or programs, it is possible to control your computer without additional hardware, like infrared receivers. It features automatic noise level detection, and it is independent from the sound architecture used.
CaiCai is a network and services monitoring system. It performs tests for ping, DHCP, POP3, SMTP, FTP, etc. It does not require additional software installed on the remote side. It is fully configurable. It provides instant reports (via an HTML page), logs, statistics, and sound alarms.