but in firts installation theres no dns or valid domain, only sendmail
command was used, no configuration only default
i used courier-mta only for send mails not for received
2016-04-13 18:09 GMT-04:30 Gordon Messmer <gordon.mess...@gmail.com>:
> On 04/13/2016 03:06 PM, PICCORO McKAY Lenz wrote:
> > a question, why before was working and then now not? the only change
> > was a ip change, due are dhcp!
>
> I don't know, but I might guess that the IP address that was previously
> assigned to your host had a PTR record in DNS that contained a fully
> qualified hostname. When the system booted, it may have got an address
> from DHCP, looked up the PTR using DNS, and then set the hostname.
> That's the standard behavior for Red Hat derived systems.
>
>
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