"Chris Evans" <[EMAIL PROTECTED]> writes:
> The ISP suggests mapping the various
> different host names to the different IP addresses all on the same
> machine. The tech man there tells me that gets round the problem
> of older browsers coming in to the numeric address and so hitting
> the www root rather than the virtual mappings. Sounds good to me
> and I assume you just have multiple entries in /etc/hosts.
No, it's a little more complicated. You need a kernel that supports
IP aliasing, then you have to configure the extra addresses as
separate interfaces, e.g.
ifconfig eth0 192.168.20.1 netmask 255.255.255.0
ifconfig eth0:1 192.168.20.2 netmask 255.255.255.0
This is really a waste of IP addresses though, and almost all browsers
will send the required headers so that you don't need to do this.
> Can I do something similar with Email? In particular with
> Smartlist? Is there something I can do using sendmail.cf and
> perhaps MX records to allow the same box to collect for different
> names and allow procmail, sendmail, smartlist, qpopper and
> probably some IMAP server to treat the different names
> appropriately?
It's quite common to set up email this way, and should be easy. I
don't know how to actually do it with anything besides qmail, though.
You don't need different IP addresses - ALL programs sending email to
you will include the machine name.
> Have I got the right idea? What friendly documentation should I be
> reading?
All of it. :-) But start with the friendly Apache documentation.
--
Carey Evans http://home.clear.net.nz/pages/c.evans/
"Is there anyone who actually believes that USAicans are so modest or
intellectually honest as to be unable to find someone to sue?" - Cameron Laird
