The Network Time Protocol (NTP) is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver or modem. It provides client accuracies typically within a millisecond on LANs and up to a few tens of milliseconds on WANs relative to a primary server synchronized to Coordinated Universal Time (UTC) via a Global Positioning Service (GPS) receiver, for example.
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.
Memventi is a Venti daemon. It speaks the same Venti protocol as the real Venti in Plan 9 from Bell Labs. It is a storage server that stores data blocks up to 56KB using its SHA-1 hash (called its score) to address it. It keeps a mapping of score to disk location in memory (in a memory-efficient manner). Blocks written cannot be removed, and blocks are only written once. Memventi writes new blocks to an append-only file, thereby making file corruption due to bugs practically impossible.
Chef is a systems integration framework, built to bring the benefits of configuration management to your entire infrastructure. With Chef, you can manage your servers by writing code, not by running commands (via Cookbooks), integrate tightly with your applications, databases, LDAP directories, and more (via Libraries), and easily configure applications that require knowledge about your entire infrastructure ("What systems are running my application?" "What is the current master database server?").
eSMSd is a simple daemon for connecting a Gnokii-handled mobile phone with SQL database into a SMS gateway. It bears great simplicity, and is therefore suitable for custom projects and smaller businesses, but is still powerful enough to handle larger loads. The project is intended as a replacement for Gnokii's SMSd, but is much simpler (therefore great for hacking, learning, and SMS magic) and also a little more portable (SMSd tends to crash on AMD-64).
Unmount Daemon for Fedora automatically unmounts the removable media that Fedora automatically mounts, such as CDs, DVDs, and USB disks. The daemon periodically scans for mounted devices. It ignores the mount points that are listed in /etc/fstab as well as those whose device name does not start with a slash. All other devices are unmounted. The configuration file allows you to set other devices that must not be unmounted by the daemon.