Re: Sitefinder II, the sequel...
On Thursday 13 Jul 2006 13:08, you wrote: The second part doesn't make any sense to me. It seems that having multiple, geographically disparate recursive name servers would be more likely to present an alternative [view] of the DNS. (In fact, I can prove that's true in at least some cases. :) So you are actually arguing -against- your first point. Only where others deliberately provide conflicting data from different sources. That is their choice, certainly the recursive machines would be deployed to avoid making the situation worse. The point of local provision is for reliability, and performance. Perhaps something as simple as a preference only 'correcting' queries that begin with www? Alas www is ascribing meaning where non-exists, webservers exist without the www prefix, and some name servers and mail servers have proper names with the www in. Such half baked approaches are how systems decay.
The Cidr Report
This report has been generated at Fri Jul 14 21:44:56 2006 AEST.
The report analyses the BGP Routing Table of an AS4637 (Reach) router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org/as4637 for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
07-07-06189292 123851
08-07-06189249 123869
09-07-06189470 123827
10-07-06189301 124026
11-07-06189621 124155
12-07-06189664 124286
13-07-06189592 124176
14-07-06189467 124369
AS Summary
22570 Number of ASes in routing system
9467 Number of ASes announcing only one prefix
1458 Largest number of prefixes announced by an AS
AS7018 : ATT-INTERNET4 - ATT WorldNet Services
91507456 Largest address span announced by an AS (/32s)
AS721 : DISA-ASNBLK - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 14Jul06 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 189652 1243736527934.4% All ASes
AS4134 1216 281 93576.9% CHINANET-BACKBONE
No.31,Jin-rong Street
AS18566 946 160 78683.1% COVAD - Covad Communications
Co.
AS4755 964 220 74477.2% VSNL-AS Videsh Sanchar Nigam
Ltd. Autonomous System
AS721 1023 312 71169.5% DISA-ASNBLK - DoD Network
Information Center
AS4323 962 274 68871.5% TWTC - Time Warner Telecom,
Inc.
AS22773 671 47 62493.0% CCINET-2 - Cox Communications
Inc.
AS9498 765 203 56273.5% BBIL-AP BHARTI BT INTERNET
LTD.
AS6197 1014 486 52852.1% BATI-ATL - BellSouth Network
Solutions, Inc
AS7018 1458 943 51535.3% ATT-INTERNET4 - ATT WorldNet
Services
AS855573 74 49987.1% CANET-ASN-4 - Aliant Telecom
AS19916 563 65 49888.5% ASTRUM-0001 - OLM LLC
AS19262 677 190 48771.9% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS17488 519 56 46389.2% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS3602 526 104 42280.2% AS3602-RTI - Rogers Telecom
Inc.
AS18101 425 27 39893.6% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS11492 657 264 39359.8% CABLEONE - CABLE ONE
AS15270 439 53 38687.9% AS-PAETEC-NET - PaeTec.net -a
division of
PaeTecCommunications, Inc.
AS17676 490 110 38077.6% JPNIC-JP-ASN-BLOCK Japan
Network Information Center
AS6198 599 243 35659.4% BATI-MIA - BellSouth Network
Solutions, Inc
AS4766 656 306 35053.4% KIXS-AS-KR Korea Telecom
AS22047 432 85 34780.3% VTR BANDA ANCHA S.A.
AS812370 30 34091.9% ROGERS-CABLE - Rogers Cable
Inc.
AS6467 389 49 34087.4% ESPIRECOMM - Xspedius
Communications Co.
AS16852 360 51 30985.8% FOCAL-CHICAGO - Focal Data
Communications of Illinois
AS16814 329 41 28887.5% NSS S.A.
AS5668 532 258 27451.5% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS3352 305 33 27289.2% TELEFONICA-DATA-ESPANA
Internet Access Network of
TDE
AS6517 409 143 26665.0% YIPESCOM - Yipes
Communications, Inc.
AS14654 281 15 26694.7% WAYPORT - Wayport
AS19115
BGP Update Report
BGP Update Report Interval: 30-Jun-06 -to- 13-Jul-06 (14 days) Observation Point: BGP Peering with AS4637 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS15611 19231 1.6% 206.8 -- Iranian Research Organisation 2 - AS947618022 1.6% 14.4 -- INTRAPOWER-AS-AP Intrapower 3 - AS17974 15971 1.4% 38.5 -- TELKOMNET-AS2-AP PT TELEKOMUNIKASI INDONESIA 4 - AS989912033 1.0% 334.2 -- ICARE-AP iCare.com Ltd. 5 - AS855 11768 1.0% 20.5 -- CANET-ASN-4 - Aliant Telecom 6 - AS815110279 0.9% 4.6 -- Uninet S.A. de C.V. 7 - AS3475 9437 0.8% 349.5 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS 8 - AS702 8812 0.8% 11.9 -- AS702 MCI EMEA - Commercial IP service provider in Europe 9 - AS337838104 0.7% 77.2 -- EEPAD 10 - AS126546923 0.6% 182.2 -- RIPE-NCC-RIS-AS RIPE NCC RIS Project. 11 - AS4755 6891 0.6% 8.3 -- VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System 12 - AS111396869 0.6% 25.8 -- CWRIN CW BARBADOS 13 - AS5387 6865 0.6% 457.7 -- Akademgorodok Internet Project 14 - AS1239 6533 0.6% 8.3 -- SPRINTLINK - Sprint 15 - AS239186486 0.6% 49.1 -- CBB-BGP-IBARAKI Connexion By Boeing Ibaraki AS 16 - AS4134 6426 0.6% 5.7 -- CHINANET-BACKBONE No.31,Jin-rong Street 17 - AS2386 6294 0.5% 6.9 -- INS-AS - ATT Data Communications Services 18 - AS199826066 0.5%3033.0 -- TOWERSTREAM-PROV - Towerstream 19 - AS4621 5744 0.5% 43.5 -- UNSPECIFIED UNINET-TH 20 - AS154755725 0.5% 46.2 -- NOL Nile Online TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS210274488 0.4%4488.0 -- ASN-PARADORES PARADORES Autonomous System 2 - AS199826066 0.5%3033.0 -- TOWERSTREAM-PROV - Towerstream 3 - AS141693293 0.3%1646.5 -- MEAD - MEAD CORPORATION 4 - AS353792764 0.2%1382.0 -- EASYNET EASYNET s.c. 5 - AS34378 916 0.1% 916.0 -- RUG-AS Razguliay-UKRROS Group 6 - AS7544 1674 0.1% 837.0 -- NASIONET-AS-AP NasionCom Sdn. Bhd. 7 - AS364131610 0.1% 805.0 -- ASN-COF-IT - Council on Foundations 8 - AS3043 3058 0.3% 764.5 -- AMPHIB-AS - Amphibian Media Corporation 9 - AS23986 691 0.1% 691.0 -- MR-AS-AP-HK Mediaring HK 10 - AS260151327 0.1% 663.5 -- THINKORSWIM - Thinkorswim inc 11 - AS144102956 0.2% 591.2 -- DALTON - MCM, Inc., DBA: [EMAIL PROTECTED] 12 - AS34441 541 0.1% 541.0 -- SIBNK-AS Novokuibyshevsk branch of Siberian Internet Company 13 - AS2609 5356 0.5% 535.6 -- TN-BB-AS Tunisia BackBone AS 14 - AS12408 520 0.0% 520.0 -- BIKENT-AS Bikent Ltd. Autonomous system 15 - AS26897 507 0.0% 507.0 -- INVISION-TECH - INVISION TECHNOLOGIES, INC. 16 - AS12828 460 0.0% 460.0 -- KRSC-RU Autonomous System 17 - AS5387 6865 0.6% 457.7 -- Akademgorodok Internet Project 18 - AS3335 1370 0.1% 456.7 -- NSU-AS Novosibirsk State University 19 - AS5402 447 0.0% 447.0 -- BINP-AS Budker Institute of Nuclear Physics 20 - AS31942 837 0.1% 418.5 -- COBECV - COBE CV TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 61.4.0.0/19 11994 0.9% AS9899 -- ICARE-AP iCare.com Ltd. 2 - 203.112.154.0/24 5047 0.4% AS17783 -- SRILRPG-AS SRIL RPG Autonomous System AS9476 -- INTRAPOWER-AS-AP Intrapower 3 - 62.81.240.0/24 4488 0.3% AS21027 -- ASN-PARADORES PARADORES Autonomous System 4 - 152.74.0.0/16 3876 0.3% AS11340 -- Red Universitaria Nacional 5 - 159.124.160.0/19 3209 0.2% AS14169 -- MEAD - MEAD CORPORATION 6 - 209.140.24.0/243055 0.2% AS3043 -- AMPHIB-AS - Amphibian Media Corporation 7 - 64.17.224.0/21 3038 0.2% AS19982 -- TOWERSTREAM-PROV - Towerstream 8 - 64.17.232.0/21 3028 0.2% AS19982 -- TOWERSTREAM-PROV - Towerstream 9 - 61.0.0.0/8 2558 0.2% AS4678 -- FINE CANON NETWORK COMMUNICATIONS INC. AS9476 -- INTRAPOWER-AS-AP Intrapower 10 - 206.251.163.0/24 2441 0.2% AS4314 -- I-55-INTERNET-SERVICES-INC - I-55 INTERNET SERVICES 11 - 202.169.38.0/242119 0.2% AS17451 -- BIZNET-AS-AP BIZNET ISP AS9476 -- INTRAPOWER-AS-AP Intrapower 12 - 198.92.192.0/212089 0.1% AS16559 -- REALCONNECT-01 - RealConnect, Inc 13 - 209.160.56.0/221946 0.1% AS14361 -- HOPONE-DCA - HopOne Internet Corporation 14 - 208.0.225.0/24 1706 0.1%
Re: What just happened at One Wilshire?
From our colo provider at One Wilshire At approx. 7pm an unknown occurance happened on the 12th fl. of the One Wilshire Building. The Fire Department was called and the building was evacuated. OWB Security has informed us that no other floor was affected. We currently understand that we are on Emergency Power. More details to follow I presume Celeste - Original Message - From: David Temkin [EMAIL PROTECTED] Date: Thursday, July 13, 2006 7:30 pm Subject: What just happened at One Wilshire? To: nanog@merit.edu Anyone have any further info? begin:vcard n:Anderson;Celeste fn:Celeste Anderson tel;work:213-740-1462 url:www.ln.net org:USC-ITS;HPCC-Los Nettos adr:;;950 W. Jefferson Blvd. MC0251;Los Angeles;CA;90089;U.S.A. version:2.1 email;internet:[EMAIL PROTECTED] title:MIS Manager end:vcard
Re: Sitefinder II, the sequel...
BS Date: Thu, 13 Jul 2006 14:35:10 -0400 BS From: Barry Shein BS Sarcasm aside isn't the right answer, for starters, software BS interfaces for kids? Are you proposing Bob.NET? Eddy -- Everquick Internet - http://www.everquick.net/ A division of Brotsman Dreger, Inc. - http://www.brotsman.com/ Bandwidth, consulting, e-commerce, hosting, and network building Phone: +1 785 865 5885 Lawrence and [inter]national Phone: +1 316 794 8922 Wichita DO NOT send mail to the following addresses: [EMAIL PROTECTED] -*- [EMAIL PROTECTED] -*- [EMAIL PROTECTED] Sending mail to spambait addresses is a great way to get blocked. Ditto for broken OOO autoresponders and foolish AV software backscatter.
Web typo-correction (Re: Sitefinder II, the sequel...)
(Note that I've not examined OpenDNS's offering, so I'm _not_ pretending to comment on what they do.) Let's quit looking at overly-simplistic correction mechanisms. Do spell checkers force autocorrection with only a single choice per misspelled word? Return an A RR that points correction service-controlled system. Said system examines HTTP Host header, then returns a page listing multiple possibilities. The site you specified does not exist. Here is a list of sites that you may be trying to access: ... I'm generally ignoring other protocols to limit the discussion scope. However, one can see how SMTP and FTP might be similarly handled. (IMHO not as good as a SRV-ish system that could return NXDOMAIN per service, but actually somewhat usable today.) Eddy -- Everquick Internet - http://www.everquick.net/ A division of Brotsman Dreger, Inc. - http://www.brotsman.com/ Bandwidth, consulting, e-commerce, hosting, and network building Phone: +1 785 865 5885 Lawrence and [inter]national Phone: +1 316 794 8922 Wichita DO NOT send mail to the following addresses: [EMAIL PROTECTED] -*- [EMAIL PROTECTED] -*- [EMAIL PROTECTED] Sending mail to spambait addresses is a great way to get blocked. Ditto for broken OOO autoresponders and foolish AV software backscatter.
Behavioral aspects [Was: Re: Web typo-correction (Re: Sitefinder II, t he sequel...)]
I'm considering submitting a presentation proposal for the upcoming NANOG which may include related 'stuff'. It may just turn out to be a BoF , or prehaps a lightning talk -- it depends on how the presentation turns out... :-) Instead of 'correction mechanisms', it would be looking specifically at behavioral aspects of some of this. - ferg -- Edward B. DREGER [EMAIL PROTECTED] wrote: (Note that I've not examined OpenDNS's offering, so I'm _not_ pretending to comment on what they do.) Let's quit looking at overly-simplistic correction mechanisms. Do spell checkers force autocorrection with only a single choice per misspelled word? Return an A RR that points correction service-controlled system. Said system examines HTTP Host header, then returns a page listing multiple possibilities. The site you specified does not exist. Here is a list of sites that you may be trying to access: ... I'm generally ignoring other protocols to limit the discussion scope. However, one can see how SMTP and FTP might be similarly handled. (IMHO not as good as a SRV-ish system that could return NXDOMAIN per service, but actually somewhat usable today.) Eddy [snip] -- Fergie, a.k.a. Paul Ferguson Engineering Architecture for the Internet fergdawg(at)netzero.net ferg's tech blog: http://fergdawg.blogspot.com/
Re: Web typo-correction (Re: Sitefinder II, the sequel...)
Edward B. DREGER wrote: I'm generally ignoring other protocols to limit the discussion scope. However, one can see how SMTP and FTP might be similarly handled. (IMHO not as good as a SRV-ish system that could return NXDOMAIN per service, but actually somewhat usable today.) No, you should not. The other iportant things that come into my mind are mail My thunderbird does use dns, looking for MX records mostly. For me it is the most important application. phone - Either VoIP or Skype they both need dns, looking for NAPTR? The box is hardware. It does not run windows and it has its own resolver onboard. dns --- Some resolvers do not use forwarders. They know whom to query. They will get a hickup if somebody is returning them the wrong ip address for a nameserver (agreed, if you use e.g. djbdns you most likely will not use OpenDNS in the first place) -- Peter and Karin Dambier Cesidian Root - Radice Cesidiana Graeffstrasse 14 D-64646 Heppenheim +49(6252)671-788 (Telekom) +49(179)108-3978 (O2 Genion) +49(6252)750-308 (VoIP: sipgate.de) mail: [EMAIL PROTECTED] mail: [EMAIL PROTECTED] http://iason.site.voila.fr/ https://sourceforge.net/projects/iason/
Weekly Routing Table Report
This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to [EMAIL PROTECTED] If you have any comments please contact Philip Smith [EMAIL PROTECTED]. Routing Table Report 04:00 +10GMT Sat 15 Jul, 2006 Analysis Summary BGP routing table entries examined: 192150 Prefixes after maximum aggregation: 105834 Unique aggregates announced to Internet: 93950 Total ASes present in the Internet Routing Table: 22658 Origin-only ASes present in the Internet Routing Table: 19705 Origin ASes announcing only one prefix:9458 Transit ASes present in the Internet Routing Table:2953 Transit-only ASes present in the Internet Routing Table: 67 Average AS path length visible in the Internet Routing Table: 3.5 Max AS path length visible: 27 Max AS path prepend of ASN (34527) 16 Prefixes from unregistered ASNs in the Routing Table: 2 Unregistered ASNs in the Routing Table: 2 Special use prefixes present in the Routing Table:1 Prefixes being announced from unallocated address space: 9 Number of addresses announced to Internet: 1551831208 Equivalent to 92 /8s, 127 /16s and 16 /24s Percentage of available address space announced: 41.9 Percentage of allocated address space announced: 60.6 Percentage of available address space allocated: 69.1 Total number of prefixes smaller than registry allocations: 94909 APNIC Region Analysis Summary - Prefixes being announced by APNIC Region ASes:41543 Total APNIC prefixes after maximum aggregation: 17091 Prefixes being announced from the APNIC address blocks: 39251 Unique aggregates announced from the APNIC address blocks:18426 APNIC Region origin ASes present in the Internet Routing Table:2626 APNIC Region origin ASes announcing only one prefix:746 APNIC Region transit ASes present in the Internet Routing Table:396 Average APNIC Region AS path length visible:3.5 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 239166816 Equivalent to 14 /8s, 65 /16s and 101 /24s Percentage of available APNIC address space announced: 74.8 APNIC AS Blocks4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911 APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary Prefixes being announced by ARIN Region ASes: 97783 Total ARIN prefixes after maximum aggregation:58246 Prefixes being announced from the ARIN address blocks:71546 Unique aggregates announced from the ARIN address blocks: 27005 ARIN Region origin ASes present in the Internet Routing Table:10836 ARIN Region origin ASes announcing only one prefix:4082 ARIN Region transit ASes present in the Internet Routing Table:1006 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 19 Number of ARIN addresses announced to Internet: 295972608 Equivalent to 17 /8s, 164 /16s and 47 /24s Percentage of available ARIN address space announced: 76.7 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959 ARIN Address Blocks24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary Prefixes being announced by RIPE Region ASes: 38589 Total RIPE prefixes after maximum aggregation:25860 Prefixes being announced from the RIPE address blocks:35657 Unique aggregates announced from the RIPE address blocks: 24048 RIPE Region origin ASes present in the Internet Routing Table: 8263 RIPE Region origin ASes announcing only one prefix:4348 RIPE Region transit ASes present in the Internet Routing Table:1359 Average RIPE Region AS path
Re: Web typo-correction (Re: Sitefinder II, the sequel...)
Thus spake Edward B. DREGER [EMAIL PROTECTED] (Note that I've not examined OpenDNS's offering, so I'm _not_ pretending to comment on what they do.) Let's quit looking at overly-simplistic correction mechanisms. Do spell checkers force autocorrection with only a single choice per misspelled word? Ever used Word or Outlook? They annoyingly fix words as you type without offering multiple choices or even alerting the user that they're doing it. I've learned to re-read what I write several times now because I've been burned too many times by jargon being corrected to unrelated real words -- but I type teh and similar things often enough I can't afford to turn the feature off. (And my employer requires me to use those apps, so all you anti-MS folks please sit back down) OpenDNS's typo-fixing service can supposedly be turned off, but I don't see how that would work when you have multiple users behind a NAT or a recursive server. There also may be hidden problems if an ISP pushes all of their users onto this service and the users have no clue they've been opted in or how to opt back out (and we all know how well opt out systems work for email in general). Return an A RR that points correction service-controlled system. Said system examines HTTP Host header, then returns a page listing multiple possibilities. The site you specified does not exist. Here is a list of sites that you may be trying to access: ... And that solves most of my objections, at least for HTTP. It still breaks a lot of other protocols. I'm generally ignoring other protocols to limit the discussion scope. However, one can see how SMTP and FTP might be similarly handled. (IMHO not as good as a SRV-ish system that could return NXDOMAIN per service, but actually somewhat usable today.) If web browsers consulted SRV records instead of blindly connecting to the A, that would appear to solve everything: NXDOMAIN for the A but the HTTP SRV could point to the typo-correction server. I'd not be inclined to argue with such a setup, but it requires a refresh of every browser out there, so it's not realistic. S Stephen SprunkStupid people surround themselves with smart CCIE #3723 people. Smart people surround themselves with K5SSS smart people who disagree with them. --Aaron Sorkin
Re: Web typo-correction (Re: Sitefinder II, the sequel...)
SS Date: Fri, 14 Jul 2006 13:38:31 -0500 SS From: Stephen Sprunk SS Ever used Word or Outlook? They annoyingly fix words as you type without SS offering multiple choices or even alerting the user that they're doing it. Yes. One of the first features that I shut off. SS OpenDNS's typo-fixing service can supposedly be turned off, but I don't see SS how that would work when you have multiple users behind a NAT or a recursive SS server. There also may be hidden problems if an ISP pushes all of their SS users onto this service and the users have no clue they've been opted in SS or how to opt back out (and we all know how well opt out systems work for SS email in general). *nod* SS And that solves most of my objections, at least for HTTP. It still breaks a SS lot of other protocols. ...which still poses problems that should not be ignored. I forked a subset of the main discussion in hopes of better idea organization. Other protocols should indeed be considered. It's a question of protocol-specific proxying when [at least for now] DNS returns protocol-agnostic answers. As a side note, I wonder how many users would notice a typo-intercepted HTTPS side and associated invalid/bogus certificate. I'm afraid the number would be rather low. SS If web browsers consulted SRV records instead of blindly connecting to the SS A, that would appear to solve everything: NXDOMAIN for the A but the HTTP SS SRV could point to the typo-correction server. I'd not be inclined to argue SS with such a setup, but it requires a refresh of every browser out there, so SS it's not realistic. Agreed re the short term. However, SRV records have other uses -- why should MXes get all the special treatment? -- so I'm trying to put another tally in the [potential] reasons to use SRV column. Perhaps if the ball began rolling... Eddy -- Everquick Internet - http://www.everquick.net/ A division of Brotsman Dreger, Inc. - http://www.brotsman.com/ Bandwidth, consulting, e-commerce, hosting, and network building Phone: +1 785 865 5885 Lawrence and [inter]national Phone: +1 316 794 8922 Wichita DO NOT send mail to the following addresses: [EMAIL PROTECTED] -*- [EMAIL PROTECTED] -*- [EMAIL PROTECTED] Sending mail to spambait addresses is a great way to get blocked. Ditto for broken OOO autoresponders and foolish AV software backscatter.
