On Mar 11, 2021, at 10:08 AM, Warner Losh <imp(a)bsdimp.com> wrote:
On Thu, Mar 11, 2021 at 10:40 AM Bakul Shah <bakul(a)iitbombay.org> wrote:
From
https://www.freebsd.org/cgi/man.cgi?hosts(5)
For each host a single line should be present with the following information:
Internet address
official host name
aliases
HISTORY
The hosts file format appeared in 4.2BSD.
While this is true wrt the history of FreeBSD/Unix, I'm almost positive that BSD
didn't invent it. I'm pretty sure it was picked up from the existing host file
that was published by sri-nic.arpa before DNS.
A different and more verbose format. See RFCs 810 & 952. Possibly because it had to
serve more purposes?
Warner
>> On Mar 11, 2021, at 9:14 AM, Grant Taylor via TUHS <tuhs(a)minnie.tuhs.org>
wrote:
>> Hi,
>>
>> I'm not sure where this message best fits; TUHS, COFF, or Internet History,
so please forgive me if this list is not the best location.
>>
>> I'm discussing the hosts file with someone and was wondering if there's
any historical documentation around it's format and what should and should not be
entered in the file.
>>
>> I've read the current man page on Gentoo Linux, but suspect that it's
far from authoritative. I'm hoping that someone can point me to something more
authoritative to the hosts file's format, guidelines around entering data, and how
it's supposed to function.
>>
>> A couple of sticking points in the other discussion revolve around how many
entries a host is supposed to have in the hosts file and any ramifications for having a
host appear as an alias on multiple lines / entries. To whit, how correct / incorrect is
the following:
>>
>> 192.0.2.1
host.example.net host
>> 127.0.0.1 localhost
host.example.net host
>>
>>
>>
>> --
>> Grant. . . .
>> unix || die
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