LibreS3 is a robust open source implementation of the Amazon S3 service, supporting a subset of the S3 REST API. Standard S3 client libraries and tools (for example python-boto, s3cmd, DragonDisk, etc.) can be used to access it. LibreS3 uses Skylable SX as the storage backend, which automatically provides data deduplication and replication.
s6-networking is a collection of small Unix tools designed to help networking. It includes clock synchronization, Unix and TCP super-servers, Unix and TCP access control, and other miscellaneous utilities. It is particularly suited for management of clients and servers on embedded devices, but works just as well on larger systems.
s6-dns is a small, efficient, complete, and IPv6-ready DNS client library, with synchronous as well as asynchronous APIs. It is designed to replace libresolv in projects that need to perform DNS resolution. It also comes with small command-line utilities to make common and not so common DNS queries.
TheSSS (The Smallest Server Suite) is a lightweight server suite distributed as a live CD. It is designed for system administrators who need a small (less than 30MB) set of server software for small local area networks. The supported servers are FTP, HTTP, SFTP, SSH, and Telnet. A proxy server (Polipo) with the Tor anonymizer is also included. The main security components are a 4MLinux Firewall (based on iptables) and Clam AntiVirus.
Scache is a different approach for PHP session data management. It provides a generic key-value data cache to use for transient session data storage. Scache also provides a shared keyspace, shared counters, and simple cache features. Scache's difference to other implementations is a tree-structured keyspace where one can easily operate only on required parts of stored session data and also invalidate groups of stored data by expiring whole subtrees. Despite its name, scache is not a cache. Scache stores all session data inserted until data is deliberately destroyed and so reduces the need to redundantly store the same data somewhere else. Scache consists of a daemon and a PHP extension.