[gpfsug-discuss] Weirdness with 'mmces address add'

Stephen Ulmer ulmer at ulmer.org
Wed Sep 7 22:34:07 BST 2016


Hostnames can have many A records. IPs *generally* only have one PTR (though it’s not restricted, multiple PTRs is not recommended). Just knowing that you can see why allowing names would create more questions than it answers.

So if it did take names instead of IP addresses, it would usually only do what you meant part of the time -- and sometimes none of the time. :)

-- 
Stephen



> On Sep 7, 2016, at 5:23 PM, Valdis.Kletnieks at vt.edu wrote:
> 
> On Wed, 07 Sep 2016 13:40:13 -0700, "Michael L Taylor" said:
> 
>> Can't be for certain this is what you're hitting but reverse DNS lookup is
>> documented the KC:
> 
>> Note: All CES IPs must have an associated hostname and reverse DNS lookup
>> must be configured for each. For more information, see Adding export IPs in
>> Deploying protocols.
> 
> Bingo.  That was it.  Since the DNS will take a while to fix, I fed
> the appropriate entries to /etc/hosts and it worked fine.
> 
> I got thrown for a loop because if there is enough code to do that checking,
> it should be able to accept a hostname as well (RFE time? :)
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