nanog mailing list archives
Re: Thank you, Comcast.
From: John Kristoff <jtk () cymru com>
Date: Fri, 26 Feb 2016 13:02:22 -0600
On Fri, 26 Feb 2016 07:20:28 +0100 (CET) Mikael Abrahamsson <swmike () swm pp se> wrote:
I know historically there were resolvers that used UDP/53 as source port for queries, but is this the case nowadays?
Empirically from what I've observed, much less than there once was. Looking at a sample of a few thousand queries on a server set I can see, I don't need much more than what two hands can count. I still see the occasional ISP name server, probably having been around forever and perhaps locked in with the query-source option in BIND. You also see what is probably as a result of some local oddball policy, making something easier, such as the queries *.labs.rapid7.com (hi guys) like to issue for things like VERSION.BIND CH TXT. John
Current thread:
- Re: Thank you, Comcast., (continued)
- Re: Thank you, Comcast. Roland Dobbins (Feb 26)
- Re: Thank you, Comcast. John Levine (Feb 26)
- Re: Thank you, Comcast. Roland Dobbins (Feb 26)
- RE: Thank you, Comcast. Keith Medcalf (Feb 26)
- Re: Thank you, Comcast. Roland Dobbins (Feb 26)
- Re: Thank you, Comcast. Valdis . Kletnieks (Feb 26)
- Re: Thank you, Comcast. John Levine (Feb 26)
- Re: Thank you, Comcast. Jared Mauch (Feb 26)
- Re: Thank you, Comcast. Curtis Maurand (Feb 26)
- Re: Thank you, Comcast. Rich Kulawiec (Feb 26)
- Re: Thank you, Comcast. John Kristoff (Feb 26)