Secrond is a light-weight cron implementation that allows running of user-specified programs at periodic scheduled times, handling tasks in intervals of seconds rather than minutes, as well as hours and days. While it is possible to achieve similar behavior by using a traditional cron daemon and adding calls to sleep() to the programs executed, it is impractical.
CAPTCHAv2 is a question/answer based CAPTCHA system. It has been designed to protect any Web form from spam bots attempting to submit information automatically by asking questions the visitor needs to answer. It can also detect brute force attempts and will block further abuse by adding the visitor's IP address to the .htaccess file. CAPTCHAv2 prevents accidentally blocking good bots by verifying the whois record of the visitor's IP. It is also possible to use CAPTCHAv2 as an automatically blocking bot trap. Bot trap implementation guide can be found in the guides.
k10ctl is a P-State utility for AMD family 10h (aka K10) processors. It can modify the P-States, i.e. alter processor and the northbridge frequencies and voltages, set or change the P-State, and read out frequency and voltage information. The main purpose of k10ctl is overclocking or "undervolting" the CPU and to configure Cool'n'Quiet settings.
c2ctl is a frequency and voltage modification utility mainly intended for Intel Core 2 and Core CPUs. It should also work for other CPUs (namely processors with SpeedStep). The utility can also enable SpeedStep (e.g. if it was disabled by the BIOS due to overclocking) and read out frequency and voltage information. The main purpose of c2ctl is overclocking or "undervolting" and to enable SpeedStep.