Educause Security Discussion mailing list archives

Re: Hosting Another IHE's Web Services in the Event of a Disaster


From: John Kaftan <jkaftan () UTICA EDU>
Date: Tue, 24 Oct 2006 08:09:50 -0400

Yes that is what he is saying and I meant Tier1 ISP e.g. MCI, Level3, Sprint
etc, sorry.

-----Original Message-----
From: Hunt,Keith A [mailto:keith () UAKRON EDU]
Sent: Monday, October 23, 2006 4:07 PM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: Re: [SECURITY] Hosting Another IHE's Web Services in the Event of a
Disaster

-----Original Message-----
From: John Kaftan [mailto:jkaftan () UTICA EDU]
Sent: Monday, October 23, 2006 8:45 AM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: Re: [SECURITY] Hosting Another IHE's Web Services in
the Event of a Disaster

I tried to get a secondary DNS setup offsite but our DNS guy
shot it down.
He said that the Tier1 DNS providers force an extended TTL to
save traffic and cycles on their DNS servers.  Therefore no
matter what you set your TTL to some folks will not be able
to get to your backup site for an extended period of time.

Has anyone experienced this?

I am looking to do this anyway in the near future as we are
going to switch ISPs soon and I want to ease the pain of re-numbering.



Not sure I understand this. Are you (or your DNS guy) saying that Tier1
DNS providers can override my TTL settings somehow? And what's a Tier1
DNS provider anyway?

--
Keith Hunt  330.972.7968  keith () uakron edu
Internet & Server Systems
The University of Akron

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