The Collax Security Gateway is a Unified Threat Management (UTM) Solution for small- and medium-sized businesses. It includes an easy to configure stateful inspection firewall, email security features including anti-spam and anti-virus, Internet access control, Internet SSL interception, Internet networking optimization tools, Internet network fault tolerance, clientless VPN technology, and remote administration.
Admin4 is a tool for server maintenance via several plugin modules, running on Windows, Mac OS X, Linux, and many more platforms. Currently, plugins for BIND DNS, LDAP, and PostgreSQL are included. It is designed as a framework, using Python for fast development of plugins and custom modifications. The DNS plugin should be able to query (axfr) any type of server, and performs updates via DDNS, which ensures that it won't interfere with other DDNS clients (DHCP, SAMBA4). For BIND 9.7 and up, statistics are supported as well and used to retrieve the server's zones automatically. The LDAP plugin features browsing and generic editing of all types of LDAP entries with schema support. In addition, high-level editing of objects like users, groups and samba domains is supported. Custom objectClasses and attributes can easily be added. The PostgreSQL module features a query tool with centrally stored snippets, a data tool with filter presets and a database object browser.
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.
ddserver.pl is a simple, small Perl script that acts as a DynDNS-compatible and ZoneEdit-compatible dynamic DNS server. It also provides an HTML Web interface, operating as a CGI script, and has been tested within Apache and lighttpd Web servers. It creates and maintains bind9 named.conf(5) zone files. Simple zone-specific templates and username/password ACLs are supported.