Messages in this thread |  | | Date | Thu, 6 Sep 2001 11:03:02 -0600 | From | Charles Cazabon <> | Subject | Re: notion of a local address [was: Re: ioctl SIOCGIFNETMASK: ip alias bug 2.4.9 and 2.2.19] |
| |
Wietse Venema <wietse@porcupine.org> wrote: > > An SMTP MTA is required to correctly recognize user@[ip.address] > as local. That's the rules, like it or not. These address forms > are actually being used, like it or not.
Yes. MTAs have to work around this; qmail does a reasonable job. Why not look at how djb does this? See ipme.c.
> It also is desirable for an MTA to treat clients on local subnets > different than strangers that happen to be on the same class A, > like it or not. Failure to do so can make one end up on black > lists, like it or not.
Having an MTA automatically treat clients on "local subnets" differently than the rest of the 'net at large is definitely _not_ desirable. The administrator should have to explicitly configure the MTA to grant additional access to every subnet he desires; anything else is begging for trouble in the form of absued relaying privileges.
Charles -- ----------------------------------------------------------------------- Charles Cazabon <linux@discworld.dyndns.org> GPL'ed software available at: http://www.qcc.sk.ca/~charlesc/software/ ----------------------------------------------------------------------- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |