--with-ipv4-default and sshd IPv4/6 dual bind hack

[Damien Miller]

On Mon, 5 Mar 2001, Pekka Savola wrote:

> Hello all,
>
> I just found a bug a nice bug that can be turned into a real feature on
> systems (usually Linux) that are built with --with-ipv4-default.
>
> If you enable IPv6 in kernel, and enable both listenaddress 0.0.0.0 and
> ::, sshd will error out 'address family not supported'.
>
> However, you can work around this error by starting sshd with 'sshd -4 -6'.
>
> As far as man page is concerned, I'm getting the impression that you
> should be able to use only  -4 or -6, not both.

It may be that the reason for the hack has been fixed. Can someone
with a recent Linux kernel with IPv6 compiled in (or module loaded)
build OpenSSH without the --with-ipv4-default hack and see whether
it still waits ages for nameserver lookups at connect?

-d

-- 
| Damien Miller <djm at mindrot.org> \ ``E-mail attachments are the poor man's
| http://www.mindrot.org          /   distributed filesystem'' - Dan Geer