Free powerdns software for linux

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 or LDAP directories.
If you have specific needs for your DNS infrastructure then you can use the Backend Developers Kit to write the glue between PowerDNS and your data or logic.
There is one master database that is replicated to two slave databases. The slave databases are read-only and are updated immediately when the master database changes.
For sites that do not yet have an existing database infrastructure we recommend the MySQL database. MySQL is very easy to setup and handles replication well.
If your nameservers are located on different physical networks then you immediately take advantage of the distributed nature of DNS. Questions will be load balanced on your array of servers. If a server is down then one of the other servers is queried.
PowerDNS is by default configured to serve all information directly from a database, which results in unmatched maintainability of your DNS information.
PowerDNS has developed a complete suite of technologies surrounding Internet Naming and email. Internet Naming is at the core of all online activities and is involved in each and every transaction on the net. Email remains the killer application of the Internet.
Enhancements:
- This release fixes many issues, unifies the PowerDNS Recursor and Authoritative DNS infrastructure (reducing code size by 2,000 lines), significantly improves the "BIND" compatibility mode (making real life zone loading up to 30 times faster than the original BIND), addresses many corner cases, reworks the TCP backend for improved stability, and makes 64 bit packages available.

PowerDNS Oracle Backend provides a backend which allows PowerDNS to use Oracle as its data store.

PowerDNS Oracle Backend is a backend driver for the PowerDNS nameserver which allows DNS data to be stored in an Oracle database. PowerDNS can load backend modules at runtime. This backend is fully configurable, and SQL statements can be specified in the configuration file.

PowerMail provides a redundant and distributed system for receiving and storing mail.
PowerMail is a redundant and distributed system for receiving mail via SMTP and storing it for users to access with POP. The way PowerMail works is quite unorthodox, and its design emphasizes speed and efficiency.
Modified Maildir mailboxes allow PowerMail to employ hardlinks to save diskspace and deliver messages with thousands of recipients instantly.
PowerMail can operate self-sufficiently or cooperate with a regular MTA to support mail forwarding.
Enhancements:
- fixes for older gcc compilers (Ruben dArco)
- pptool ignored SYSCONFDIR and only did /etc/powermail (Ruben dArco)
- added ldap-forwarding-attribute
- --help display was somewhat screwed (Ruben dArco)
- run-as-uid/run-as-gid broken (Ruben dArco)
- TOP cleaned up (Ruben dArco)

GNUPanel provides a Web hosting control panel for Debian.
It is specially developed to run on Debian and is a simple and easy to use administration tool to manage a hosting account. GNUPanel provides three web interfaces with SSL access at user, reseller and administrator level.
With them you can add mail addresses and FTP accounts, protect directories, redirect subdomains, etc.
Main features:
- Subdomains administration
- Parked domains
- Mail accounts and redirections
- FTP accounts
- Directories protection
- Mail lists
- Web administration for PostgreSQL and MySQL databases
- Bandwidth and disk space control
- Web statistics
- Support tickets
- English and spanish languages
- Paypal payments support
- Backup tool
Software and daemons provided:
- Apache 2
- PowerDNS
- Proftpd
- Postfix
- Courier-pop, Courier-pop-ssl
- Courier-imap, Courier-imap-ssl
- Courier-authdaemon
- Squirrelmail
- Mailman
- PHP 5
- PostgreSQL 8.1
- MySQL 5
- PHPPgadmin
- PHPMyadmin
- Webalizer statistics
Enhancements:
- This release has a better user interface, and the ability to create auto-responders has been added.
- All users can now access a mail panel that allows them to create auto-responders, redirections, and change passwords for their mail accounts.
- This mail panel can be found at http://gnupanel.domain/mail.