skd is a small daemon which binds to a UDP, TCP, or Unix-domain socket, waits for connections and runs a specified program to handle them. It is ideal as a secure, efficient replacement for traditional inetd. It is also an easy-to-use tool for non-privileged users wanting to run their own network services. Datagram and stream sockets are available in both the Internet and Unix namespaces, each with the expected inetd behavior. In the Internet domain, IPv6 is supported in addition to IPv4. skd also supports connection limits, verbose logging of connections, dropping of privileges, forking into the background with a pidfile, and redirecting stderr to syslog or a file. Some of these facilities (such as forking into the background, privilege dropping, and logging) are also useful for standalone, non-network services and can be used without binding any socket.
init is the lightweight BSD-style init and syslog system used in Arachsys Linux. It includes a number of small utilities, including a minimal init, a wrapper for turning simple commands into well-behaved background daemons, and a simple but flexible syslog implementation. The design aim for this suite is to provide a toolkit of small components which can be joined together with standard shell scripting to produce a complete system, rather than the large, monolithic, inflexible daemons which are typical elsewhere. Despite the focus on minimalism, the init and daemon tools can be used to implement fast, parallel, dependency-based booting, and are used for this purpose in Arachsys Linux.