The drkhtb project was designed with medium to major Internet Service Providers in mind. Featuring extended hashing support, error handling, and simple configuration options, it has proven to be a stable solution for shaping up to 15000 residential clients with both upload and download rules, it is considered stable and is already in use as a production platform in at least one major ISP running 4 shaping bridges, each handling up to 2 Gbit/s, with a total of 48000 active clients and over 60000 filter rules in each direction. At this point there is no reason to believe that further bandwidth cannot be handled by one bridge, but there have not been sufficient resources to extensively test it. It is believed that up to 4 Gbit/s can be shaped on one individual machine serving at least 20000 clients.
rstash is a server and client for transferring files over a network into file drop boxes on the server. It is primarily aimed at transferring things such as backup files from one host to another without opening up complete shell accounts, NFS, FTP, or other full file transfer mechanisms. The server has a set of boxes into which the client can put named files in a write-only fashion. No access to any portions of the server's file system outside the configured drop boxes is permitted.
The Shrew Soft VPN Client for Unix is a free IPsec Client for FreeBSD, NetBSD, and Linux based operating systems. It can be used to communicate with systems running ipsec-tools. The Unix client utilizes the IPsec kernel support included with the operating system, and comes with the complete Internet Key Exchange daemon and client front end application source code. A Windows version is also available.
Cyrus2Dovecot is a full-featured command line tool for converting the email messages of one or more users from the Cyrus format to Dovecot Maildir++ folders. It allows you to perform a server transition which is fully transparent to both POP and IMAP users, as virtually all available metadata is preserved during the conversion. This includes message UIDs, INTERNALDATEs, IMAP folder subscriptions, the UIDVALIDITY and UIDNEXT values for each folder, as well as all IMAP flags (including the first 26 user-defined keywords).
Artica for Postfix is a secure Web interface for Postfix administration. It is designed to reduce the cost of creating and managing a full Linux mail server. It supports Postfix, Kaspersky Anti-spam, Kaspersky Anti-Virus, Bogofilter, Milter-greylist, SpamAssassin, Clam Antivirus, Amavis, OpenLDAP, SQLite library, Cyrus-imap, Procmail, Fetchmail, DnsMasq, Mailman, Sieve, Yorel script, QueueGraph, MailGraph, AWSTats, geoip, and more.