- NANOG - lists.nanog.org

Re: Identifying IP address types (fwd)
by Sean Donelan 20 Feb '04

20 Feb '04

Public reply, because private are blocked. > http://www.ietf.org/internet-drafts/draft-stumpf-dns-mtamark-01.txt > uses rev-dns TXT RRs to let admins document which IP addresses are > supposed to act as MTA (as well as to document which addresses are > supposed not to send mail). The difference is an ISP may "permit" any customer to act as an MTA. The ISP does not want to decide about what to permit or deny. But the ISP may be willing to provide more information about an address so other people can decide if they want to behave differently depending on the type of connection. For example, an IRC operator may decide not to permit anyone using a dynamic address to connect, or a Web site may want to send smaller pages to users on low bandwidth connections. > In fact, you won't be able to reply to this email unless > hostmaster(a)coloco.com enters > > @origin 53.34.199.in-addr.arpa > _perm._stmp_srv.180 IN TXT "1" > > into the DNS for you. If an ISP permits every IP address to use any service, what does it accomplish? If an ISP didn't want to permit its users to access SMTP, the ISP would just block port 25 at the network layer.

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Verisign wins an award...
by Ray Bellis 20 Feb '04

20 Feb '04

Seeing as this didn't appear to hit NANOG yet - Our dear friends at Verisign won the "Internet Villain" of the year award at the UK ISPA awards last night "for their presumption that they own the internet and the domain name system hijacking scandal". cheers, Ray Bellis -- Ray Bellis, MA(Oxon) - Technical Director community internet plc - ts.com Ltd Windsor House, 12 High Street, Kidlington, Oxford, OX5 2PJ tel: +44 1865 856000 email: ray.bellis(a)community.net.uk fax: +44 1865 856001 web: http://www.community.net.uk/

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XO contact.
by John Obi 20 Feb '04

20 Feb '04

Hello, I need someone in XO with clue to contact me off list regarding hacking/exploiting issues. All my mails to noc@ and abuse@ didn't make anything. Thanks, -J __________________________________ Do you Yahoo!? Yahoo! Mail SpamGuard - Read only the mail you want. http://antispam.yahoo.com/tools

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Istanbul / Turkey Area
by frank＠try-us.de 19 Feb '04

19 Feb '04

Hello nanogers, I'm looking for an ISP in the greater area of Istanbul / Turkey with DSL or E1 capabilities. Please contact me off list. Thanks in advance -- Best regards, Frank Kuempel mailto:frank@try-us.de If it's there and you can see it - it's REAL If it's there and you can't see it - it's TRANSPARENT If it's not there and you can see it - it's VIRTUAL If it's not there and you can't see it - it's GONE

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Re: Clueless service restrictions (was RE: Anti-spam System Idea)
by Dr. Jeffrey Race 19 Feb '04

19 Feb '04

On Wed, 18 Feb 2004 13:06:05 -0500, Valdis.Kletnieks(a)vt.edu wrote: >Any real solution is going to have to deal with the fact that properly >administered systems are in the distinct minority. You shut the mal-administered systems of from the internet until they are no lnger a threat to the internet, just as you quarantine ill persons who are dangers to the community. Solving the spam and security problems requires nothing more, and nothing less. The identities of chronically mal-administered systems are well know. There are some practical implementation problems at the margin but for (I am guessing) 95% of the cases, it is trivially easy. Jeffrey Race

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Equinix 350 E. Cermak - Contact Please
by Eric Kuhnke 19 Feb '04

19 Feb '04

Will an employee of the Equinix corporation please contact me off-list? This is regarding equipment delivery issues at 350 E. Cermak.

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Anti-spam System Idea
by Tim Thorpe 19 Feb '04

19 Feb '04

I wanted to run this past you to see what you thought of it and get some feedback on pro's and cons of this type of system. I have been thinking recently about the ever increasing amount of spam that is flooding the internet, clogging mail servers, and in general pissing us all off. I think it time to do something about it. very few systems are effective at blocking spam at the server level, and the ones that exist have a less then stellar reputation and are not very effective on top of that. 95% of spam comes through relays and its headers are forged tracking an E-mail back that you've received is becoming next to impossible, its also very time consuming and why waste your time on scumbags? my idea; a DC network that actively scans for active relays and tests them, it compiles a list on a daily basis of compromised IP addresses (or even addresses that are willingly allowing the relay) making this list freely available to ISPs via a secure and tracked site. to test a relay you actually have to send mail through it, I have a solution for this as well, the clients are set to e-mail a certain address that changes daily the E-mails are signed with a crypto key to verify authenticity (that way spammers can't abuse the address if it doesn't have the key, it get canned) work with ISP's to correct issues on their network help completely black list IP's from their network that are operating as an open relay and redirect to a page that alerts them of the compromise and solutions to fix the problem. the only way people are going to become aware of security issues such as this is if something happens that wakes them up, if they can't access a % of the web it would hopefully clue them in. because these scans only need to take place once per IP per day and over a large distribution of computers performing the tests, I don't see network load becoming a big issue, no bigger then it currently is. the only way to fight spammers is to squeeze them out of hiding, and that's what I hope this system would be designed to do. I do not have the coding knowledge to do this I will need coders, I do have the PR skills to work with ISPs. I am also working with my congresswoman to pave the way for legal clearance for this program. I would greatly appreciate your input on this and anything I may have overlooked. I would also like to know if this would be a DC program you would run. a lot of people argue the practical application of DC. although we know differently this project would show them what DC can do for them and wake them up to perhaps other DC projects.

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80/udp floods?
by Scott Call 19 Feb '04

19 Feb '04

I apologize for the potentially obvious question, but I've been through sf, google, etc and can't find anything. I have a customer that is currently getting several hundred thousand packets per second sent to them on 80/udp. /etc/services lists 80/udp as IANA assigned for http but I've never seen a udp implementation of http so I'm assuming it's a sneaky DOS/DDOS of some kind. ACL's seem to work to catch it but I'm curious if anyone has seen this specific attack (80/udp) before. Thanks -Scott -- Scott Call Router Geek, ATGi, home of $6.95 Prime Rib I make the world a better place, I boycott Wal-Mart VoIP incoming: +1 360-382-1814

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firstam.com contact
by Jonathan Nichols 19 Feb '04

19 Feb '04

Greetings, Could someone from First American get in touch with me off list? There seems to be a malfunctioning mail server in the firstam.com domain.. Thanks, Jonathan

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Cogeco Cable listening?
by Christopher Chin 18 Feb '04

18 Feb '04

Howdy, If someone from Cogeco.net (AS7992) is onboard, please contact me off-list. Thanks, - Christopher ======================

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