Public Stories, etc
A number of people have been asking for a way to check transaction ID randomness, in addition to source port randomness. OARC's porttest tool has now been expanded to also report on transaction IDs. To use it, issue a TXT query for the name txidtest.dns-oarc.net. For example, with dig:
Also note that in conjunction with this enhancement, the scoring critera for porttest and txidtest have been changed to match the web-based port test. The scoring is as follows:
Submitted by wessels on Mon, 2008-07-28 17:24 categories [ ]
OARC operates a number of mailing lists for its members, for other groups, and for the public.
OARC also hosts a number of private mailing lists as a service to its membership. Any OARC member can request the creation of a private mailing list whose charter is related to OARC's mission. Members may view information about OARC's private lists.
Submitted by wessels on Tue, 2008-07-08 23:50 categories [ ]
One of OARC's activities is to convene periodic workshops, usually focused on DNS research and operations.
Please see the hosting page if your organization is considering hosting an OARC workshop.
Submitted by admin on Tue, 2008-01-15 23:19 categories [ ]
dsc is a system for collecting and exploring statistics from busy DNS servers. It uses a distributed architecture with collectors running on or near nameservers sending their data to one or more central presenters for display and archiving. Collectors use pcap to sniff network traffic. They transmit aggregated data to the
dsc is configurable to allow the administrator to capture any kind of data that he or she chooses. A sample configuration is included that captures the following data:
The dsc source code is maintained by The Measurement Factory. A few sample screenshots are shown below:
Submitted by admin on Fri, 2008-01-11 19:15 categories [ ]
Submitted by admin on Fri, 2008-01-11 19:10 categories [ ]
OARC member Yuji Sekiya, from WIDE, presents work related to active measurement of the anycast instances of root DNS servers. Follow the attachment link below to view slides for the presentation.
Submitted by bwatson on Tue, 2006-03-21 06:13 categories [ ]
The following OARC members participate in quarterly 48-hour data collection:
Root and TLD operators have very different network topologies and methods by which they provide DNS service. Such details may be useful to researchers studying this data. Links to specific details such as anycast vs. unicast routing and addressing, global vs. local nodes, geographic location, and autonomous systems are provided below for each member that submits data.
Submitted by bwatson on Wed, 2006-03-15 17:12 categories [ ]
The following links provide information for members to upload various types of data to the OARC catalog. Organizations that wish to only share data with OARC (but have no access to member data/services), see the OARC Participation Agreement.
Click here for instructions on uploading PCAP files from quarterly 48-hour tcpdump runs.
Click here for instructions on uploading DSC statistics via SSH.
Submitted by bwatson on Thu, 2006-03-09 18:53 categories [ ]
Submitted by bwatson on Fri, 2005-10-14 21:17 categories [ ]
Experiments in Scalable Trust Infrastructure
Copyright (C) Internet Systems Consortium, Inc. (2005).
Submitted by bwatson on Fri, 2005-10-14 14:48 categories [ ]
ARI Registry Services
Public Interest Registry
University of Maryland