Hi,Peter

thanks for your attention and interest.

If you have any issues or suggestions during implementation, please let us 
know. Feedback from real-world deployments would be especially valuable for 
improving the document.

Best regards,
Peng

> -----原始邮件-----
> 发件人: "Peter Thomassen" <[email protected]>
> 发送时间:2026-01-09 00:59:00 (星期五)
> 收件人: 左鹏 <[email protected]>, [email protected]
> 抄送: "Nils Wisiol" <[email protected]>
> 主题: [DNSOP] Re: Fw: New Version Notification for 
> draft-avoid-large-wildcard-records-00.txt
> 
> Hi,
> 
> This is an interesting attack vector, especially because of the concentration 
> of bandwidth usage between the resolver and the authoritative. The proposed 
> solutions are also pretty reasonable.
> 
> I think this document is a good idea. We'll likely implement some of the 
> proposed measures at deSEC.
> 
> Best,
> Peter
> 
> 
> On 1/6/26 08:35, 左鹏 wrote:
> > Hi ALL,
> > 
> > We have submitted a new Internet-Draft:
> > 
> > https://datatracker.ietf.org/doc/draft-avoid-large-wildcard-records/
> > 
> > The draft discusses DNS amplification risks caused by oversized records 
> > with wildcard owner names, especially in large-scale authoritative DNS 
> > hosting environments, and provides operational guidance for mitigation.
> > 
> > Comments and feedback are welcome.
> > 
> > thanks.
> > 
> >> -----原始邮件-----
> >> 发件人: [email protected]
> >> 发送时间:2026-01-06 15:21:06 (星期二)
> >> 收件人: "Joe Abley" <[email protected]>, "Peng Zuo" <[email protected]>, 
> >> "Zhiwei Yan" <[email protected]>
> >> 主题: New Version Notification for draft-avoid-large-wildcard-records-00.txt
> >>
> >> A new version of Internet-Draft draft-avoid-large-wildcard-records-00.txt 
> >> has
> >> been successfully submitted by Peng Zuo and posted to the
> >> IETF repository.
> >>
> >> Name:     draft-avoid-large-wildcard-records
> >> Revision: 00
> >> Title:    Avoid Large Records with a Wildcard Owner Name
> >> Date:     2026-01-05
> >> Group:    Individual Submission
> >> Pages:    7
> >> URL:      
> >> https://www.ietf.org/archive/id/draft-avoid-large-wildcard-records-00.txt
> >> Status:   
> >> https://datatracker.ietf.org/doc/draft-avoid-large-wildcard-records/
> >> HTMLized: 
> >> https://datatracker.ietf.org/doc/html/draft-avoid-large-wildcard-records
> >>
> >>
> >> Abstract:
> >>
> >>     As DNS hosting becomes increasingly centralized, with multiple zones
> >>     hosted on shared authoritative name servers, the risk of DNS
> >>     amplification attacks has grown.  By crafting large DNS records with
> >>     wildcard owner names, attackers can exploit these shared servers to
> >>     launch high-volume DDoS amplification attacks.
> >>
> >>     This document provides operational guidance for DNS hosting providers
> >>     to mitigate DDoS risks arising from amplification of responses
> >>     derived from wildcard owner names.
> >>
> >>
> >>
> >> The IETF Secretariat
> >>
> >>
> > _______________________________________________
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> 
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