Re: [Networker] ALL Clients suddenly started failing
2008-10-06 11:20:15
How about using local hosts files and then DNS. This way if you miss something
with updating your local host files then hopefully DNS will pick it up. We use
DNS primarily here but in a DR situation we have relied on local host files and
not DNS. You can maintain both so you have some redundancy in your name
resolution.
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-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On
Behalf Of Davina Treiber
Sent: Monday, October 06, 2008 10:40 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] ALL Clients suddenly started failing
Goslin, Paul wrote:
> While I agree that maintaining a client host file is a PITA.... It's not that
> much effort in my experience... And worth it in the long run. Unless you have
> a very dynamic network with backup clients constantly being added /
> removed....
If you believe that then you are perfectly at liberty to convert your
environment to use hosts files. However from my experience it will be a
nightmare. As an example consider the case when you decide to add a new storage
node and you have to add that address to the hosts file on 600 clients. I would
not want to be the one tasked with that. OK perhaps your environment is not
that large, but that just illustrates the fact that hosts files do not scale
and DNS does.
>
> I feel it's more practical than naïve... I now have a weekend of failed
> backups due to failed DNS lookups... I have no control over the DNS server...
> As long as the client is up and responding on the proper ports, Networker
> should simply back it up.... What does it matter if the reverse lookup fails,
> and how is that more significant than backing up your companies' data ???
>
The point of the reverse lookup is to verify to each machine that the other
machines are what they say they are. Not everyone agrees that this is the best
security method, but you have other options for this now anyway.
What else in your network stopped working when DNS went down? In most
organisations this would generate a call-out and someone would be fixing it
toute-suite.
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