The purpose of zdisk is to have a kernel of your choice and a rescue system on one floppy or cdrom disk. Zdisk copies a kernel of your choice to a floppy and puts a rescue system on the same floppy, creating a boot/rescue floppy. The kernel can't be more than 1070Kb in size. Ramf-117.exe at the same site has a similar rescue system, except it comes with a IDE kernel.
g4u ("ghost for unix") is a boot-floppy/CD that allows one to easily clone PC hard disks by using FTP. This is often done to deploy a common setup on a number of PCs. The floppy/CD offers two functions: it uploads the compressed image of a local hard disk to an FTP server, and then it can retrieve that image via FTP, uncompress it, and write it back to disk. Network configuration is fetched via DHCP. As the hard disk is processed as an image, any filesystem and operating system can be deployed using g4u. Easy cloning of local disks as well as partitions is also supported.
The RAZip bitstream format was designed to provide a faster random access to compressed data than what is currently possible using the GZIP format. Its major features include fast random access to compressed data, freedom from patents, single-pass coding/decoding using a bounded amount of intermediate storage, the ability to choose from one of many algorithms for compression, encryption, or error correction, and comprehensive support for Unix file metadata, Macintosh file metadata, and arbitrary file metadata.
httplog is a replacement for Apache's 'rotatelogs' and Andrew Ford's 'chronolog'. It allows you to specify a logfile using strftime paramaters in the filename to act as a template. This means that the logs in your logfiles will also be sorted according to the filename. For example, if you specify a logfile of /var/log/http%Y%m%d.log, a new log file would be generated each day, with content for only that one day. It also supports compression of logfiles using gzip, and many other useful functions.
rsync-backup automates the process of backing up multiple systems to one or more backup servers. It focuses on making the process secure. It encrypts the backup going across the wire, only ships changed data, runs the server as root to preserve permissions and ownership, keeps people from seeing each other's backups, and doesn't require the server to trust any files sent from the clients. It doesn't ship password files, key files, nor other sensitive files across the wire, but backs them up locally instead. Admins may use one key for everyone (backups named after the client IP) or allow named backups (when a machine may change IP or when multiple independant backups may need to be made from one machine).
Selected Backup uses include and exclude files to provide an efficient method of backing up a list of files and directories. It uses tar and gzip, and has an option to email the attached file to an admin user. It is written in Perl, and has a number of options, including the ability to clean up files older than a certain age.
dvbackup encapsulates arbitrary files into a raw DV data stream suitable for writing on a DV tape. It uses all of the audio data and the space reserved for the AC coefficients of the video data. You also need dvconnect from the libdv project to transmit the data over firewire. The latest version of dvconnect is always included.
CDRX is a menu-based Perl script designed to help you use your CDRW with mkisofs and cdrecord to handle ISO creation, CDROM/CDRW device scans and setup, CDRW blanking, and CDRW burns. It is designed to supplant the need for an X-based CD burning utility, to provide features not found in other Unix CD burning programs, and to be easy for beginners to use.