The rlpr package makes it possible (or at the very least, easier) to print files on remote sites to your local printer. It includes BSD-compatible replacements for `lpr', `lpq', and `lprm', whose functionality is a superset of their BSD counterparts. In other words, with the rlpr package, you can do everything you could do with the BSD printing commands, and more. The programs are all smaller, cleaner, and more portable than their BSD equivalents, and supported on just about any POSIX.1 system.
SendIP is a command-line tool to send arbitrary IP packets. It has a large number of options to specify the content of every header of a RIP, RIPng, BGP, TCP, UDP, ICMP, or raw IPv4/IPv6 packet. It also allows any data to be added to the packet. Checksums can be calculated automatically, but if you wish to send out wrong checksums, that is supported too.
Sharity mounts shares exported by Windows, Samba, and other SMB/CIFS servers in the file system of Unix computers. It implements Resource Browsing, which is similar to the Windows Network Neighborhood (Netbios Workgroups and Active Directory), NTLM, NTLMv2, and Kerberos authentication, Microsoft's Distributed File System (DFS), and manipulation of Access Control Lists (ACLs).
SING stands for 'Send ICMP Nasty Garbage.' It is a tool that sends ICMP packets fully customized from command line. Its main purpose is to replace and complement the ping command, adding certain enhancements as fragmentation; send and receive spoofed packets; send many ICMP information types (echo as the old ping, address mask, timestamp, and router discovery) and errors (redirect, unreach, and time exceeded); and send monster packets. It also supports loose and strict source routing and record routing.