Re: Multihomed Configuration

On Thu, Jun 07, 2007 at 12:06:12PM -0500, Dallas Clement wrote:
> On Wed, 2007-06-06 at 22:32 +0530, Nirmal Babu Puliyadi Suriya Kumar -X
> (npuliyad - HCL at Cisco) wrote:

> > But, Is it possible to assign/ configure different default directory for
> > each IP address with same login username?

I'd run two separate instances of sshd, one for each interface whose
behavior you want to be unique.  Give each one a separate config file,
which does whatever it is you need to do.

You could even run one of them inside a chroot, if that is the easiest
way to do whatever it is you want.

> > e69001# grep "ListenAddress" sshd_config
> > #ListenAddress 0.0.0.0
> > #ListenAddress ::
> > ListenAddress 172.23.87.109
> > ListenAddress 192.168.2.133

(You don't want to listen on loopback?!)

> It's a shame to have to hard-configure both IP addresses in this config
> file -- especially if you are getting them dynamically through DHCP.  I
> wonder if there is a different way to enable sshd on both NICs without
> specifying the IP address...

If he simply went back to

  ListenAddress 0.0.0.0
  ListenAddress ::

then it would listen on all the machine's interfaces.  That is the default.
Heck, he could even remove all the ListenAddress lines entirely, because
these *are* default settings.