Free dns software for linux

DNSA and DNSA-NG are swiss knife tools for Linux designed to test several DNS security issues.

The most important one is a full wifi support using 2 cards:

- The first in monitor mode which capture 802.11 traffic
- The second associated to the AP and injecting DNS forged packets

Host-ap and madwifi drivers are already supported by DNSA-NG.

DNSA was initially thought because of a lack in DNS auditing tools. It uses libnet and libpcap :

"Libnet is a high-level API (toolkit) allowing the application programmer to construct and inject network packets. It provides a portable and simplified interface for low-level network packet shaping, handling and injection. Libnet hides much of the tedium of packet creation from the application programmer such as multiplexing, buffer management, arcane packet header information, byte-ordering, OS-dependent issues, and much more.

Libnet features portable packet creation interfaces at the IP layer and link layer, as well as a host of supplementary and complementary functionality. Using libnet, quick and simple packet assembly applications can be whipped up with little effort. With a bit more time, more complex programs can be written (Traceroute and ping were easily rewritten using libnet and libpcap).

Usage :

Usage: ./dnsa [ARGS]
DNS Swiss knife tool

-1 DNS ID spoofing [ Required : -S ]
-D [www.domain.org] Hostname query to fool. Dont use it if every DNS request sniffed has to be spoofed
-S [IP] IP address to send for dns queries
-s [IP] IP address of the host to fool
-i [interface] IP address to send for dns queries
-2 DNS IDs Sniffing [ Required : -s ]
-s [IP] IP address of the server which makes queries
-w [file] Output file for DNS IDs
-3 DNS cache poisoning [ Required : -S AND -b AND -a ]
-a [host.domain.org] Hostname to send in the additional record
-b [IP] IP to send in the additional record
-D [www.domain.org] Hostname for query. Use it if you want to fool just on
-S [IP] IP address to send for DNS queries (the normal one)
-s [IP] IP address of the server to fool
-i [interface] IP address to send for DNS queries

"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 just by including a few files and calling a few functions. All of the complexity of handling the Multicast DNS retransmit timing, duplicate
suppression, probing, conflict detection, and other facets of the DNS protocol is hidden behind a very simple and very easy to use interface, described in the header file. The single small c source file has almost no dependencies, and is portable to almost any embedded platform. Multiple example applications and usages are included in the download, including a simple very persistent query browser and a tool to advertise local web sites.


The code is licensed under both the GPL and BSD licenses, for use in any free software or commercial application. If there is a licensing need not covered by either of those, alternative licensing is available upon request.

DNS List is a BIND zone file -to- HTML script written in PHP which enables drilling down on particular hosts to view CNAME records (if any).

In order to display an easily readable list of entries hosted on my DNS servers, I wrote this PHP script to parse A and CNAME records out of my BIND zone files, and generate an expandable/collapsable table containing the information.

This script expects to find the zonefile in a zonefile subdirectory of the directory in which the script currently resides. Again this is easy to change, but it was written for my purposes and Im providing it here should it be useful to others. There is a lot of hard-coding within the script for "kw.zone" and "test.zone" - so modify this to suit your needs. The script can parse fairly simple zone files easily, but hasnt been tested with more complex zones. Your milage will vary.

MyDNS is a free DNS server for UNIX. It was implemented from scratch and is designed to serve records directly from an SQL database (currently either MySQL or PostgreSQL).
Its primary objectives are stability, security, interoperability, and speed, though not necessarily in that order.
MyDNS does not include recursive name service, nor a resolver library. It is primarily designed for organizations with many zones and/or resource records who desire the ability to perform real-time dynamic updates on their DNS data via MySQL.
MyDNS starts and is ready to answer questions immediately, no matter how much DNS data you have in the database. It is very fast and memory-efficient. It includes complete documentation, including a manual and a FAQ.
MyDNS supports a few frills, including round robin DNS, dynamic load balancing, and outgoing AXFR for non-MyDNS nameservers.
MyDNS is licensed under the GNU General Public License
Enhancements:
- Changed PostgreSQL connect error message code. It will still try the Unix domain socket (not sure why I did that) but if all fails, it outputs the first error message, which is much more likely to make sense.
- Implemented David Phillips AIX patch.
- Implemented Petter Larssons ALIAS patches for mydnscheck and mydnsexport.
- Made sure all copyright notices included 2004.
- Fixed "undefined constant" and other strict error message stuff in contrib/admin.php.
- Fixed reference to "rr" (table name) in contrib/admin.php -- replaced with $rr_table_name.
Thanks to Harald Paulsen for finding this.

Net::DNS::RR::A is a DNS A resource record. Net::DNS is a DNS resolver implemented in Perl. It allows the
programmer to perform nearly any type of DNS query from a Perl script. For details and examples, please read the Net::DNS manual page.

To read about the latest features, see the Changes file. To find out about known bugs and to see whats planned for future versions, see the TODO file.

Net::DNS does not depend on any C libraries. However, if possible Net::DNS tries to link against a C-library that is supplied with the code. This provides a notable speed increase.

The author invites feedback on Net::DNS. If theres something youd like to have added, please let me know. If you find a bug, please send me the information described in the BUGS section below.

METHODS

address

print "address = ", $rr->address, "n";

Returns the RRs address field.

DNS::Zone contains a collection of Perl modules which provide an abstraction of name service zones as well as server specific adaptors for concrete file representations.

The modules origin is the ZoneMaster project which make heavy use of the module for comprehensive zone file management. Go to http://www.zonemaster.org for further information.

Installation:

You install DNS::Zone as you would install any perl module library, by running these command:

If you have CPAN.pm installed and are connected to the Internet

perl -MCPAN -e shell
> install DNS::Zone

or even

perl -MCPAN -e install DNS::Zone

otherwise

perl Makefile.PL
make
make test
make install

DynDNS was originally founded to provide quality dynamic DNS services to the Internet and we continue to offer our free Dynamic DNS. In addition, we offer other services that might be of interest to a home user.
DynDNS is a focused and savvy DNS provider, specializing in dynamic DNS and complementary services. DynDNS is a private, internally funded and stable company.
We have no investors looking over our shoulders nor do we worry about our stock value. We run an efficient and profitable organization and pass these savings on to our customers. We are technologists that develop high quality services and our goal is to be the value provider of DNS services.
The free Dynamic DNS service allows you to alias a dynamic IP address to a static hostname in any of the many domains we offer, allowing your computer to be more easily accessed from various locations on the Internet. We provide this service, for up to five (5) hostnames, free to the Internet community.
The Dynamic DNS service is ideal for a home website, file server, or just to keep a pointer back to your home PC so you can access those important documents while youre at work.
Using one of the available third-party update clients you can keep your hostname always pointing to your IP address, no matter how often your ISP changes it. No more fumbling to find that piece of paper where you wrote down your IP address, or e-mailing all your friends every time it changes. Just tell them to visit yourname.dyndns.org instead!
Main features:
- Hostnames in 68 domains
- Wildcarding, allowing *.yourhost.dyndns.org to point to yourhost.dyndns.org
- Offline URL redirection
- MX records, allowing for flexible e-mail configurations
- Clients for a wide variety of platforms
- An open, non-proprietary update interface
- Almost instantaneous DNS propagation time
- Free, industry leading e-mail support
- 5 DNS servers in 4 redundant tier-1 datacenters around the globe
Enhancements:
- support for olitec-SX200
- added sample-etc_rc.d_init.d_ddclient.lsb as a sample script for lsb-compliant systems.
- support for linksys wrt854g (thanks to Nick Triantos)
- support for linksys ver 3
- support for Thomson (Alcatel) SpeedTouch 510 (thanks to Aldoir)
- Cosmetic fixes submitted by John Owens

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 the DNS with names configured either in each host or in a central configuration file. Dnsmasq supports static and dynamic DHCP leases and BOOTP for network booting of diskless machines.
Dnsmasq is targeted at home networks using NAT and connected to the internet via a modem, cable-modem or ADSL connection but would be a good choice for any small network where low resource use and ease of configuration are important.
Supported platforms include Linux (with glibc and uclibc), *BSD and Mac OS X. Dnsmasq is included in at least the following Linux distributions: Gentoo, Debian, Slackware, Suse, Smoothwall, IP-Cop, floppyfw, Firebox, LEAF, Freesco, CoyoteLinux and Clarkconnect. It is also available as a FreeBSD port and is used in Linksys wireless routers and the m0n0wall project.
Main features:
- The DNS configuration of machines behind the firewall is simple and doesnt depend on the details of the ISPs dns servers
- Clients which try to do DNS lookups while a modem link to the internet is down will time out immediately.
- Dnsmasq will serve names from the /etc/hosts file on the firewall machine: If the names of local machines are there, then they can all be addressed without having to maintain /etc/hosts on each machine.
- The integrated DHCP server supports static and dynamic DHCP leases and multiple networks and IP ranges. It works across BOOTP relays and supports DHCP options including RFC3397 DNS search lists. Machines which are configured by DHCP have their names automatically included in the DNS and the names can specified by each machine or centrally by associating a name with a MAC address in the dnsmasq config file.
- Dnsmasq caches internet addresses (A records and AAAA records) and address-to-name mappings (PTR records), reducing the load on upstream servers and improving performance (especially on modem connections).
- Dnsmasq can be configured to automatically pick up the addresses of its upstream nameservers from ppp or dhcp configuration. It will automatically reload this information if it changes. This facility will be of particular interest to maintainers of Linux firewall distributions since it allows dns configuration to be made automatic.
- On IPv6-enabled boxes, dnsmasq can both talk to upstream servers via IPv6 and offer DNS service via IPv6. On dual-stack (IPv4 and IPv6) boxes it talks both protocols and can even act as IPv6-to-IPv4 or IPv4-to-IPv6 forwarder.
- Dnsmasq can be configured to send queries for certain domains to upstream servers handling only those domains. This makes integration with private DNS systems easy.
- Dnsmasq supports MX records and can be configured to return MX records for any or all local machines.
Enhancements:
- This release adds some features to the log subsystem: it is now possible to log directly to a file, and to log asynchronously to syslog.
- More detailed logging of DHCP transactions is available.
- DHCP options can now be specified by name instead of by number.
- DHCP configuration can now use information from a DHCP relay agent.
- There are a few minor bugfixes (notably failure of TFTP with --listen-address).
- Some translations have been updated.