Bug 430086 - avoid the /etc/hosts dependency. instead to IP reverse lookup ?
avoid the /etc/hosts dependency. instead to IP reverse lookup ?
Product: freeIPA
Classification: Community
Component: ipa-server (Show other bugs)
All Linux
high Severity high
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Assigned To: Simo Sorce
Chandrasekar Kannan
Depends On:
Blocks: freeipa10 429034
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Reported: 2008-01-24 09:18 EST by Chandrasekar Kannan
Modified: 2012-03-27 03:14 EDT (History)
5 users (show)

See Also:
Fixed In Version: freeipa-2.0.0-1.fc15
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2012-03-27 03:14:07 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Chandrasekar Kannan 2008-01-24 09:18:30 EST
Right now, I'm told we have to have a proper /etc/hosts file setup
for hostname lookup. 

Could we avoid this and instead do a reverse IP lookup against
and the machine's current DNS ?

One pre-requisite that I'm hearing for IPA is that we need a static
IP for the ipa server which in most cases mean that the machine
is already hooked up to a DNS proper.
Comment 3 Simo Sorce 2008-02-05 11:15:08 EST
There is no hard dependency on /etc/hosts, as long as you can always resolve
correctly forward and reverse it is ok.

But usually the /etc/hosts file is polluted with the machine name set on the line, and that won't work. Also DNS lookups are slower and may fail if
the DNS is not available, and that's why configuring /etc/hosts is usually a
better bet, but not strictly required.
Comment 4 Simo Sorce 2008-02-13 13:32:59 EST
Add back a check for /etc/hosts to be correct
Comment 5 Yi Zhang 2008-04-07 13:22:10 EDT
qa verified, bug closed
build used: 4-7-2008 daily build

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