Re: [HACKERS] Another crack at doing a Win32

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To:
Cc: pgsql-hackers-win32(at)postgresql(dot)org
Subject: Re: [HACKERS] Another crack at doing a Win32
Date: 2004-03-05 17:38:13
Message-ID: 4048BB05.6090100@dunslane.net
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Tom Lane wrote:

>Perhaps there is a case to be made
>that on all platforms, "-i" should enable or disable only nonlocal
>connections. Without -i we'd only allow binding to loopback ports
>(either IP4 or IP6).
>
>Aside from keeping the Windows and Unix behaviors similar, this would be
>of some positive benefit for people who use TCP-only clients. They'd
>not have to remember to set -i anymore, unless they want remote access.
>
>

I've been caught by this more than once, because I use local JDBC
clients, so now the first thing I do after initdb is to set tcpip_socket
to true.

>In response to Andrew's table, here's what I'm visualizing:
>
>* No -i: bind only to loopback addresses (both IP4 and IP6 if available).
>
>

OK.

>* With -i, but not virtual_host: bind to all available addresses.
>
>

OK.

>* With -i and virtual_host: bind to specified address(es) only.
>
>

Can you bind one socket to more than one address? My understanding is
that it's all (IN_ADDR_ANY or in6_addr_any) or one. In that case with
this proposal we'd have to force all the communications through that
interface on Windows. Or would we use multiple sockets (in which case
there is probably a good case for allowing multiple addresses in
virtual_host)?

... (haven't toured this part of the code before) ....

I see what looks like an array of listen sockets, so multiple sockets
seems the way to go.

>
>I don't have a strong feeling about the case of virtual_host without -i.
>The above says to ignore virtual_host, but maybe we should instead
>ignore the lack of -i and do what virtual_host says.
>
>
>

I have no strong feelings either.

cheers

andrew

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