Quick Patch is a utility that eases the security patch updating of FreeBSD. It has the ability to do a range of different update tasks. Its features include easy setup and use of CVSUP, the ability to verify (using PGP) any and all advisories, extract the necessary patch commands from official FreeBSD security advisories, email a full report of exact hours since the advisories was released/corrected, the topic of the security advisory its PGP verification status, and the commands needed for easy updating. Also, it can optionally apply them with no attendance.
mod_sesehe is an Apache module that disguises and removes the "Server: " HTTP header from responses. This allows you to hide certain information about the server. This also allows more accurate information to be provided if Apache is configured as a reverse proxy and a malformed request is received. Although sending the Server header in HTTP responses is not defined as a MUST in RFC 2616, the Apache HTTP Server does not otherwise allow you to disable sending this header via its configuration.
Libpqstego is a library for perturbed quantization steganography with wet paper codes. It uses the quantization step during JPEG compression to embed secret data into an image. The implemented algorithm is nearly undetectable by blind steganalysis, and is much more secure than outguess, F5, or MB2.
Utmpd is a small and flexible daemon that aims to simplify user access control. It scans the utmp file, looking for logged users, and then kills anyone matching a deny rule. Denial can be based on the time of login, the hostname or IP address from which the login request comes, or the idle time of the user.
Easypass.pl is a short script that can be used to create secure, easy-to-remember passwords. It requires a dictionary file (which is standard on most Unix machines) and Perl. It features a lot of options that can be used to strengthen the password. The script was the focus of an article in the July 2002 issue ('Tools') of SysAdmin Magazine.