Multiple domains on same ip (virtual hosting) - correct way?

[Mathias Körber]

> That's very helpful thanks -=20
>=20
> In fact, I am embarrassed to say that my mail problem seems to have
> caused by not having an A record for cyberscreen.com in my main
> zonefile, plus I changed the name of my reverse file to=20
>=20
> 82.87.212.in-addr.arpa.
>=20
> and everything seems fine now.=20

Did you change the name of file only or the zone-name?
Don't change the zone-name to that if you have not been
delegated that full reverse zone.

Let's see:
# dig 82.87.212.in-addr.arpa ns

; <<>> DiG 8.2 <<>> 82.87.212.in-addr.arpa ns=20
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0
;; QUERY SECTION:
;;      82.87.212.in-addr.arpa, type =3D NS, class =3D IN

;; ANSWER SECTION:
82.87.212.in-addr.arpa.  5D IN NS  usui.newnet.co.uk.
82.87.212.in-addr.arpa.  5D IN NS  hayashi.newnet.co.uk.

;; Total query time: 4254 msec
;; FROM: matjes to SERVER: default -- 0.0.0.0
;; WHEN: Sat Nov 11 00:53:17 2000
;; MSG SIZE  sent: 40  rcvd: 93

Nope, the 82.87.212.in-addr.arpa zone is not delegated to you, so you
should not be running that.


# dig 24.82.87.212.in-addr.arpa any @usui.newnet.co.uk

; <<>> DiG 8.2 <<>> 24.82.87.212.in-addr.arpa any @usui.newnet.co.uk=20
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2
;; QUERY SECTION:
;;      24.82.87.212.in-addr.arpa, type =3D ANY, class =3D IN

;; ANSWER SECTION:
24.82.87.212.in-addr.arpa.  1D IN PTR  server.cyberscreen.com.

;; AUTHORITY SECTION:
82.87.212.in-addr.arpa.  1D IN NS  usui.newnet.co.uk.
82.87.212.in-addr.arpa.  1D IN NS  hayashi.newnet.co.uk.

;; ADDITIONAL SECTION:
usui.newnet.co.uk.      1D IN A         212.87.64.12
hayashi.newnet.co.uk.   1D IN A         212.87.87.11

;; Total query time: 229 msec
;; FROM: matjes to SERVER: usui.newnet.co.uk  212.87.64.12
;; WHEN: Sat Nov 11 00:54:23 2000
;; MSG SIZE  sent: 43  rcvd: 186

Did newnet delegate the reverse to you at all? DOes not look like it.
It seems to me they are running the reverse for the whole /24 =
(82.87.121.in-addr.arpa)
from their nameservers.




>=20
> As a result of the above error, I am even more embarrassed to find =
that
> my original post has been duplicated - I had it bounced back by the
> listserver a couple of times and I thought it was my ISP - in fact it
> was because the listserver sendmail could not do the lookup on
> cyberscreen.com - DUHHH!
>=20
> Many many apologies to the list for this.
>=20
> And thanks again for the advice, I think I am sorted on this subject
> now.
>=20
> Peter Rose
> London UK