2014-10-06 00:44:31 +03:00
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Use cases (examples)
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====================
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Dynamic DNS Service discovery (DNS-SD_)
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Synchronized with database engine, for example *MySQL*.
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.. _DNS-SD: http://www.dns-sd.org/
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Firewall control
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----------------
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2015-12-30 12:57:50 +02:00
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Control firewall (e.g. enable incoming SSH connection) with DNS query signed with private key.
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2014-10-06 00:44:31 +03:00
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So firewall can blocks every service during normal operation.
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Scriptable DNS-based blacklist (DNS-BL_)
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Scripted in Python with already provided features, takes advantage of DNS reply, because
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almost every mail server supports DNS based blacklisting.
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.. _DNS-BL: http://www.dnsbl.org
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DNS based Wake-On-Lan
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Controled by secured queries secured with private key.
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Dynamic translation service
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---------------------------
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DNS request can be translated to virtualy any answer, that's easy to implement in client side
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because of many DNS libraries available.
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Examples :
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* **Dictionary** - using *IDN* for non-ascii strings transfer, ``dig TXT slovo.en._dict_.nic.cz`` returns translation of "slovo" to EN.
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* **Translation** - Extends *DNS-SD*, for example DNS to Jabber to find out people logged in.
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* **Exchange rate calculator** - ``dig TXT 1000.99.czk.eur._rates_.nic.cz`` returns the given sum (1000.99 CZK) in EURs.
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Dynamic ENUM service
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--------------------
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Support for redirection, synchronization, etc.
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