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Username: Scott_I
Date/Time: Tue, November 14, 2000 at 6:23 AM GMT
Browser: Microsoft Internet Explorer V5.01 using Windows NT 5.0
Score: 5
Subject: Regarding the "Summary" for .DIR

Message:
 

 
Regarding the "Summary of Application of Novell. Inc." for .DIR

The summary states:  "In practice, the system will only work with LDAP servers."

Comment: There are many types of directories that exist today.  These range all they way from personal directories (email lists, personal address books, memos, notepads, etc) to full service enterprise directories (HR databases, Authentication and Authorization systems, name-to-address look up systems, hierarchically organized locally administered autonomous systems with relationship management, etc).  Each of these systems can have, and usually does have, different access protocols and languages and programming interfaces.  The .DIR application proposes the use of LDAP as the open standard of choice.  LDAP is not a proprietary protocol.  It can be used to access all types of disparate data, independent of the local data storage mechanisms and software implementation choices.

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The summary states:  "They anticipate an oddly slow initial growth rate, perhaps predicated on the restrictions to register, particularly the restriction of having running LDAP services."

Comment:  The slower growth rate is entirely predicated on restrictions of the TLD that will allow only conformant LDAP servers to be registered.  Since the proposal opens up many new opportunities for relationship management and secure data sharing, we expect that initially there will be planning and deployment issues that will take some time, but as the new .DIR TLD continues to grow, we expect its growth to be at an exponential rate.  Look at the growth rate of names in .com.  Initially the registration rate was slow and then it exploded at a skyrocketing rate.  We anticipate .DIR to behave in the same fashion.

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The summary states:  "Nonetheless, their estimate that only 1000 names will be registered the first day, without any artificial methods of their own to limit the number, seems very low."

Comment:  The proposed infrastructure will support hundreds of transactions/second.  Even if the number of registrations on the first day were to be in the hundreds of thousands, there is sufficient capacity to support that number.

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The summary states: "This should be acceptable, although it is unclear how the traffic to a directory might differ from the traffic to “normal” services."

Comment: Once the directory is registered with DNS, there is no change in the amount of DNS traffic whether the directory is registered in .com or .dir or any other TLD.  The type and nature of LDAP traffic on port 389 is currently well understood.  It is projected that there will actually be less traffic on the network as a whole since there will be fewer widely distributed broadcast messages being used to "look for" instances of a specific directory.

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The summary states:  "While Whois is not a critical application geographic distribution would improve the overall “image” of system reliability."

Comment:  This could certainly be enhanced to whatever level ICANN recommends were the .DIR TLD to be approved.

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The summary states: "There is no discussion of logging and monitoring facilities for security purposes, nor of periodic security reviews of the system. The proposal would benefit from inclusion of details on how audit trails would be performed to track changes to the registrar database.  For example, it would be useful to track changes in registration."

Comment: All systems support logging and monitoring for audit trails and security reviews.

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The summary states: "Novell … will apparently primarily be involved in defining policies and perhaps in independently building solutions to use the new capabilities of the TLD."

Comment: In the application, it clearly states that all technical compliance issues regarding directories and LDAP servers will be defined by The Open Group's Directory Interoperability Forum (DIF).  Novell has no plans to define or declare that only certain, proprietary policies be implemented.  The application calls for a restricted domain, but restricted only in the sense that it applies open directory technology, not restricted in Novell specific technology or products.  Yes, Novell is currently, and will on an ongoing basis be, building solutions based on secure, distributed, and federated directories and directory technologies that will be entirely relevant to the new .dir TLD.

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The summary states: "The architecture does not make a very clean separation between the registry and registrar software, which could lead to problems since this TLD allows external registrars to communicate to the registry.  There is, in particular, no specification of how a registrar outside of their administrative and physical domain might properly and safely interoperate with the registry service."

Comment:  This apprehension might arise due to the finite amount of information contained in the application.  It would not come from the technical merits and capabilities and reputation of either the sponsor, Novell, and the registry operator, Tucows.  The reliability and performance of these companies speak many more volumes than proposals on paper. 

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The summary states: "Apparently, that software has no history of running registries, so there is a risk that it is flawed."

Comment:  This is not true.  The software has been testing with actual registry data and registry access patterns both normal and atypical.

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The summary states:  "It is uncertain whether the proposed architecture will be up to peak demands for registrations."

Comment:  The proposed system infrastructure will be able to handle the peak loads demanded of the new TLD.   The system is designed as the presumption states it should. 

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The summary states: "Unlike many other proposals, this one has a noticeable impact on the existing DNS system.  The .dir TLD will only register domain names that are variants on domain names that already exist in other TLDs, and hopefully only to the legitimate owners of those names."

Comment:  To make an analogy:  It does take more effort to build an indoor bathroom than an outhouse, but once it is built, there is overall less "traffic" to get to the indoor bathroom than the outhouse.  Once the registration traffic is over, there is less "finding" traffic on the net in the long run.  Say it takes X amount of traffic to register an LDAP directory agent in the new .DIR TLD and it takes Y amount of traffic to find the LDAP directory agent in some other TLD.  Let X > Y.  However, the overall amount of traffic is for .DIR is X*1 which is known and finite and without .DIR the traffic is Y*N, which is unbounded and essentially infinite since since N is not known and will only increase over time.

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The summary states: "Over the course of 4 years, the .dir service expects perhaps 10 million registrations, a drop in the Whois bucket over that period.  There is some possible concern, however, that the registration spike during the early days of the service (or whenever they expect their sudden growth to occur) could temporarily burden the Whois services of existing TLDs."

Comment:  That same spike will occur to Whois independent of whether or not .DIR is approved.  As directories become more and more common in the Internet, the information must be made available and will be accessed.  The .DIR application shows that it can be done in a "reasonable and managed" approach.  Without .DIR there are no compliance checks, no validation checks, no consistency checks.

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The summary states: "Further, unless some care is taken, spurious requests for registration of non-existent domain names under the .dir TLD could be used to launch denial of service attacks on other domains’ Whois services."

Comment:  Again this is not affected by .DIR at all. The denial of service attack could happen today with or without the .DIR TLD.  That is like saying we should shut down .com since HTTP denial of service attacks can occur against somedomain.com.  This is NOT a .DIR application issue.

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The summary states:  "Since Tucows has not run a production TLD, there is some risk that they lack some skills required, …"

Comment:  This is like saying ICANN will only approve registry operators who are already registry operators of existing gTLD and ccTLD domains.  I am sure this is not the case.  Tucows does have the necessary experience with registrars and registry software to be the registry operator for the .DIR TLD.

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The summary states: "The proposal calls for using the Internet naming system for a new purpose, with potentially large benefits.  These benefits would largely be realized by those making use of the fairly modest new capabilities of the new service itself, but rather by those who use those modest services to hook together things that were previously hard to connect."

Comment:  This is a great overall summary of the application.  It is not about new technology as much as it creates a marketplace and synergy for existing open directory technology.  The proposal realizes all the gain of innovation with none of the risk of untested technology at its base.

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The summary states:  "This is a novel idea, somewhat underdeveloped in its more radical implications."

Comment:  Again, a very good analysis of the application.  Could the inventors of IP have envisioned an IP address at every device and phone and computer and consumer appliance throughout the globe?  No, but it has happened.  Could the inventors of HTTP have envisioned where web servers now live?  No, but they are ubiquitous across both devices and appliances.  The potential of .DIR is even too big to fully describe in an application let alone in the industry as a whole right now.

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The summary states: "A more rigorous approach would involve a test of the target against a standard with appropriate diagnostics.  Periodic testing and notification might also be advisable.  In the case of this proposal it would seem that this testing could be fully automated."

Comment:  Agreed and will be implemented if the .DIR TLD is approved.

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The summary states: "This application’s strength is because it contains a different approach in bringing new services to the top-level domain."

Comment: Agreed.

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The summary states: "The weakness of this application is that its marketing plan is not sufficiently discussed."

Comment: The market already exists.  Novell estimates that the number of LDAP servers already deployed is in the hundreds of thousands if not millions.  There are 4 millon NetWare servers deployed throughout the globe and a good percentage of those support LDAP. Many of the other major industry system vendors also support LDAP.  It is not a matter of building a market, but satisfying the demands of the existing market.  A more full marketing plan is being put in place, but it was not expected that it would necessarily be a significant part of the application.

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The summary states:  "There are also questions regarding whether or not the market will accept the new service."

Comment:  The market already has accepted it in LDAP.  What lacks is a common namespace, set of verifiable criteria for deployment, and rendezvous points for relationship management all of which are provided for or solved with the introduction of the .DIR TLD.

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The summary states: "From a business plan perspective, this application might result in a successful venture given the capabilities of Novell, but the risks of market acceptance are great."

Comment:  In other words, the evaluation team feels that there are no significant technical issues associated with the .dir application.  It is a new service that has already been proven technically and now simply needs an opportunity for common deployment.  The risks of market acceptance have already been mitigated with the introduction and acceptance of LDAP.
       
     

 


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