In today's podcast, we respond to listener email. Click to listen directly. Running time: 3'19" To subscribe, drag this to your client.

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In this podcast, Andrew Newton, author of the CRISP requirements document, talks about how CRISP addresses the post- WHOIS world. Click to listen directly. Running time: 11'54" To subscribe, drag this to your client.

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RL "Bob" Morgan talks about SASL, the Simple Authentication and Security Layer. SASL is the security framework used by modern Internet applications. Key insight: A well-crafted solution may be used far beyond its immediate purpose. Click to listen directly. Running time: 15'18" To subscribe, drag this to your client.

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Andrew Newton is a long-time IETF contributor, and is co-chair of the Geolocation and Privacy working group of the IETF. In this podcast, Andrew explains what's going on with GEOPRIV. Key insight: It is important to balance framework with enabling applications. Click to listen directly. Running time: 13'10" To subscribe, drag this to your client.

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Randall Stewart talks about the Stream Control Transmission Protocol. SCTP is a transport protocol, but unlike TCP it has a different set of requirements (message-oriented, multi-homing, and so on). Key insight: Don't re-invent the wheel%Excerpt%#151;invent the submarine instead. Click to listen directly. Running time: 13'10" To subscribe, drag this to your client.

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John Klensin, one of the earliest students of the Internationalized Domain Names (IDNs). In this podcast, we talk about last week's phishing attack, what can be done to prevent future attacks, and registry and user interface issues. Key insight: The cost of backwards-compatibility may far exceed the benefits of new functionality. Special note: Starting with this podcast, we're moving to a bi-weekly schedule%Excerpt%#151;that's Tuesday and Thursdays. I need to put a little slack in the system to deal with unexpected events. Click to listen directly. Running time: 13'03" To subscribe, drag this to your client.

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Joe Hildebrand, Chief Architect of Jabber, Inc., has been doing instant messaging for nearly a decade. In this podcast, the final of three, we discuss XMPP and the stringprep hack, the relationship between the JSF and the IETF, and "cool" XMPP clients. Key insight: There are lots of cool extensions to XMPP. Click to listen directly. Running time: 14'22" To subscribe, drag this to your client.

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In today's podcast, we respond to listener email. Click to listen directly. Running time: 4'21" To subscribe, drag this to your client.

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Dave Crocker, Principal of Brandenburg Internetworking, has been doing Internet email for nearly 40 years. In this podcast, the second of three, we discuss push versus pull, message structing, and addressing. Key insight: Extraordinary architectural power is achieved using simple, extensible structures, and separating global knowledge and local convention. Click to listen directly. Running time: 17'05" To subscribe, drag this to your client.

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Pete Resnick is a member of the Internet Architecture Board (IAB). In this podcast, we discuss the LEMONADE working group. Key insight: Architectual impacts must be carefully considered when presented with different evolutionary choices. Click to listen directly. Running time: 12'31" To subscribe, drag this to your client.

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Joe Hildebrand, Chief Architect of Jabber, Inc., has been doing instant messaging for nearly a decade. In this podcast, the second of three, we discuss XMPP performance issues, the security model, and internationalization. Correction: In XMPP, DIGEST-MD5 is mandatory to implement %Excerpt%#151; the podcast mistakenly confused CRAM-MD5 with DIGEST-MD5. Click to listen directly. Running time: 15'33" To subscribe, drag this to your client.

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Andrew Newton is a long-time IETF contributor, and, along with myself, co-chair of the former MARID working group of the IETF. In this podcast, we discuss why the MARID working group was "concluded with extreme prejudice". Key insight: A simple idea results in a complicated controversy. Click to listen directly. Running time: 13'51" To subscribe, drag this to your client.

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Joe Hildebrand, Chief Architect of Jabber, Inc., has been doing instant messaging for nearly a decade. In this podcast, the first of three, we discuss the history and architectural underpinnings of instant mesaging for the Internet. Key insight: The XMPP architecture is similar to email, with quite a few lessons built-in. Click to listen directly. Running time: 12'12" To subscribe, drag this to your client.

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Dave Crocker, Principal of Brandenburg Internetworking, has been doing Internet email for nearly 40 years. In this podcast, the first of three, we discuss the history and extensibility razor for Internet email. Key insight: How to extend a system with 30+ years and 1B users. Click to listen directly. Running time: 11'56" To subscribe, drag this to your client.

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The Radio-free RFC podcast is devoted to introducing and explaining the Internet's "Request for Comments" series. Click to listen directly. Running time: 3'48" To subscribe, drag this to your client.

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