Free Linux Tools

4PSA DNS Manager is a multi-tenant software automation tool designed to deliver advanced DNS hosting to service providers, businesses, and individuals.

PowerDNS daemon Nameserver is a advanced, modern and high performance authoritative-only nameserver.
It is written from scratch and conforms to all relevant DNS standards documents. Furthermore, PowerDNS interfaces with almost any database.
The PowerDNS Nameserver utilizes, a flexible backend architecture can access DNS information from any data source. This includes file formats, Bind zone files, relational databases [...]

DDNSNotify is a program that logs into a (telnet-enabled) router and retrieves the WAN IP address, but only if the IP address differs from the DNS (A record) address for the domain name given.
It is intend for DynamicDNS applications, where the IP address for a Web site changes (usually due to ISP rules). Thus, using [...]

RIR to DNS converter is a tool to convert Regional Internet Registry data to a DNS country lookup zone. You can use it to build your own DNS zone for looking up country codes from IP addresses.
It uses data directly from RIPE, ARIN, APNIC, LACNIC, and AFRINIC. The data can be updated on a schedule [...]

Dnsmasq is lightweight, easy to configure DNS forwarder and DHCP server. Dnsmasq is designed to provide DNS and, optionally, DHCP, to a small network. It can serve the names of local machines which are not in the global DNS.
The DHCP server integrates with the DNS server and allows machines with DHCP-allocated addresses to appear in [...]

Zoned project provides DNS zone database clustering for BIND9.
Zoned works in conjunction with the BDBHPT DLZ module for BIND9 (9.4.0+). Zoned manages the backing-store Berkeley DB database, and utilizes the Berkeley DB Replication Base API to provide high availability and load distribution to a coherent DNS zone infrastructure.
Zoned includes the zoned(1) server replication node, zonectl(1) [...]

Zero Calorie DNS is a domain name server for which the binary weighs in at 26K, that has no dependencies other than the minimal FreeBSD 6.0 installation.
The server responds to “name server” (NS), “start of authority” (SOA), “address record” (A), “reverse address” (PTR), and “mail exchanger” (MX) requests. The server is fairly fast because the [...]

DNSSEC-Tools is a project that provides tools for DNS administrators.
The DNSSEC-Tools package is a collection of tools, scripts, Perl modules, C libraries, and application patches that are useful for DNS zone administrators and end users to deploy DNS Security (DNSSEC).
The various pieces of the DNSSEC-Tools project are spread across several directories. These pieces are briefly [...]

Pdns is a gui administration tool for maintaining domains and their DNS records. This project allows new domains to be created and existing domains to be modified and deleted.
This tool is based of of the Qt tool kit from Trolltech and the QcjData classes. It is built for use with the postgres database, but should [...]

PowerDNS Backend Development Kit project allows a developer to code backends which can be loaded at runtime by PowerDNS, a nameserver that reads data from different backends. The stock distribution comes with MySQL and PostgreSQL and other backends. It is also possible to do failover, loadbalancing, and geodirection from a backend.
PowerDNS has developed a complete [...]