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This is ares, an asynchronous resolver library. It is intended for applications which need to perform DNS queries without blocking, or need to perform multiple DNS queries in parallel. The primary examples of such applications are servers which communicate with multiple clients and programs with graphical user interfaces.

This is c-ares, an asynchronous resolver library. It is intended for applications which need to perform DNS queries without blocking, or need to perform multiple DNS queries in parallel. The primary examples of such applications are servers which communicate with multiple clients and programs with graphical user interfaces.

inadyn, inadyn-advanced fork. A multi-OS (*NIX, BSD, NT, 32 bit Win) console/service/daemon dynamic DNS client. It gives the possibility to have your own fixed hostname registered on the internet, although your IP might be changing. It checks periodically whether the IP address stored by the DNS server is the real current IP address of the machine that is running it.

DNS Flood Detector was developed to detect abusive usage levels on high traffic nameservers and to enable quick response in halting the use of one's nameserver to facilitate spam.

libasr is a FREE asynchronous DNS resolver. libasr runs on top of the OpenBSD operating system but also has a portable version that can build and run on several systems, including: * Linux * FreeBSD * NetBSD * DragonFly * MacOSX

BIND version 9 is a major rewrite of nearly all aspects of the underlying BIND architecture. Some of the important features of BIND 9 are: DNS Security: DNSSEC (signed zones), TSIG (signed DNS requests) IP version 6: Answers DNS queries on IPv6 sockets, IPv6 resource records (AAAA) Experimental IPv6 Resolver Library DNS Protocol Enhancements: IXFR, DDNS, Notify, EDNS0 Improved standards conformance Views: One server process can provide multiple "views" of the DNS namespace, e.g. an "inside" view to certain clients, and an "outside" view to others. Multiprocessor Support See the CHANGES file for more information on new features.

BIND version 9 is a major rewrite of nearly all aspects of the underlying BIND architecture. Some of the important features of BIND 9 are: DNS Security: DNSSEC (signed zones), TSIG (signed DNS requests) IP version 6: Answers DNS queries on IPv6 sockets, IPv6 resource records (AAAA) Experimental IPv6 Resolver Library DNS Protocol Enhancements: IXFR, DDNS, Notify, EDNS0 Improved standards conformance Views: One server process can provide multiple "views" of the DNS namespace, e.g. an "inside" view to certain clients, and an "outside" view to others. Multiprocessor Support See the CHANGES file for more information on new features.

BIND version 9 is a major rewrite of nearly all aspects of the underlying BIND architecture. Some of the important features of BIND 9 are: DNS Security: DNSSEC (signed zones), TSIG (signed DNS requests) IP version 6: Answers DNS queries on IPv6 sockets, IPv6 resource records (AAAA) Experimental IPv6 Resolver Library DNS Protocol Enhancements: IXFR, DDNS, Notify, EDNS0 Improved standards conformance Views: One server process can provide multiple "views" of the DNS namespace, e.g. an "inside" view to certain clients, and an "outside" view to others. Multiprocessor Support See the CHANGES file for more information on new features.

DNSRecon provides the ability to perform: Check all NS Records for Zone Transfers. Enumerate General DNS Records for a given Domain (MX, SOA, NS, A, AAAA, SPF and TXT). Perform common SRV Record Enumeration. Top Level Domain (TLD) Expansion. Check for Wildcard Resolution. Brute Force subdomain and host A and AAAA records given a domain and a wordlist. Perform a PTR Record lookup for a given IP Range or CIDR. Check a DNS Server Cached records for A, AAAA and CNAME Records provided a list of host records in a text file to check. Enumerate Common mDNS records in the Local Network Enumerate Hosts and Subdomains using Google.

dnsdist is a highly DNS-, DoS- and abuse-aware loadbalancer. Its goal in life is to route DNS traffic to the best DNS server, delivering top performance to legitimate users while shunting or blocking abusive traffic.