Fargusson.Alan wrote:
If you have an entry in /etc/hosts it should work if DNS is down.
Exactly. That is broken behaviour:
1. If one runs a DNS, one (usually) wants the DNS info to be used. DNS
was create to eliminate the need to store information in hosts files and
the problems maintaining that information.
2. If DNS or the network is down, I want to know immediately. A system
configured to use DNS will not work well without it. I do not want the
problem to be masked with (possibly) incorrect information stored in a
hosts file.
In fact that is exactly why it is recommended that you have an entry in
/etc/hosts. It makes no difference if the entry in /etc/hosts is a
127.* address or the actual IP address. Both should work, even if the
network is unplugged.
By whom? _I_ recommend not putting the information in the hosts file
_when one is using DNS_.
-----Original Message-----
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of
John Summerfield
Sent: Monday, September 15, 2008 9:03 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: 127.0.0.2 in /etc/hosts?
Fargusson.Alan wrote:
I am not sure I understand what you are saying. The change that was made was to the name
for the host in /etc/hosts. The name "loopback" should always have been to a
127.* address, and all the 127.* addresses should be routed to the loopback interface.
This entry:
127.0.0.2 gpok189.endicott.ibm.com gpok189
could result in a successful lookup for gpok189 when a hardware problem
(fallen-out network cable) should cause it to fail (because BIND can't
be reached). That does not seem to me a good idea.
--
Cheers
John
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