This port contains a subset of the DJBDNS package.
It includes several useful Domain Name System (DNS) tools:
- dnsfilter: a parallel IP-address-to-host-name converter
- dnsip, dnsipq, dnsname, dnstxt, and dnsmx: simple
command-line interfaces to DNS
- dnsq, dnstrace, dnstracesort: DNS debugging tools
The dnsreflector daemon listens for DNS queries on a local UDP port
and answers with records pointing back to localhost. Combined with
packet filter pf(4) this works as a bandwidth efficient spamtrap.
The dnsproxy daemon is a proxy for DNS queries. It forwards these
queries to two previously configured nameservers: one for authoritative
queries and another for recursive queries. The received answers are sent
back to the client unchanged. No local caching is done.
To quote from the SourceForge project description:
gh-tool is a command-line interface to gethostby*, in libresolv/libc.
It allows one to check the local system's notion of an IP->DNS or
DNS->IP mapping, including aliases, directly, rather than digging for
mappings in DNS, which may or may not be relevant.
libasyncns is a C library for Linux/Unix for executing name service queries
asynchronously. It is an asynchronous wrapper around getaddrinfo(3),
getnameinfo(3), res_query(3) and res_search(3) from libc and libresolv.
In contrast to GNU's asynchronous name resolving API getaddrinfo_a(),
libasyncns does not make use of UNIX signals for reporting completion of name
queries. Instead, the API exports a standard UNIX file descriptor which may be
integerated cleanly into custom main loops.
In contrast to asynchronous DNS resolving libraries like libdenise, skadns,
adns, libasyncns is just an asynchronous wrapper around the libc's synchronous
getaddrinfo() API, which has the advantage of allowing name resolution using
techniques like Multicast DNS, LDAP or NIS using standard libc NSS (Name
Service Switch) modules. libasyncns is compatible with IPv6 if the underlying
libc is.
libasyncns is very tiny, consisting of just one header and one source file. It
has no dependencies besides libc.
A thread-safe DNS library for both clients and servers written in pure
Haskell.
gen6dns is a tool to generate static DNS records (AAAA and PTR) for hosts
using Stateless Address Autoconfig (SLAAC). If you have a list of hostnames,
mac addresses and ipv6 subnets gen6dns generates the appropriate AAAA and
PTR records for you. It supports different scopes and the generation of
view (split) specific files.
mdnsd is a very lightweight, simple, portable, and easy to integrate open
source implementation of Multicast DNS (part of Zeroconf, also called
Rendezvous by Apple) for developers. It supports both acting as a Query and
a Responder, allowing any software to participate fully on the
.localnetwork.
-- Dan Pelleg
daniel+mdnsd@pelleg.org
This port contains a subset of djbdns (net/djbdns) -
a DNS client library released to the public domain by its author.
The library was packaged by Gerrit Pape. The port contains both static
and shared versions of the DNS client library.
Libidn2 is an implementation of IDNA2008 internationalized domain names.