Re: relayclient

[Gerrit Pape <pape@smarden.org>]

On Wed, Dec 20, 2006 at 12:20:50PM -0500, Payal Rathod wrote:
> Hi,
> We have a small (1 PC) temporary office using dial-up (dynamic IP). Now 
> I want them to send mails through my qmail box to outside world. But 
> since that is for few days only, I don't want to set up any thing like 
> SMTP-Auth or POP-before-SMTP. Can I use small DDNS client for them and 
> use something like,
> dynamic.host.name:allow,RELAYCLIENT=""
> in my tcp.smtp file? Will it work? Or is there any other way?

You can do that with tcpsvd.  Look for 'check hostname' in the
ipsvd-instruct man page.  I personally use that to restrict access to
the ssh port to hosts authenticated at a tinydyndns service.

HTH, Gerrit.