Bonjour, I run testdns.py example on my dns. I don't understand why I can't see a classic ip address as with: host webprod.mondomaine.fr gave me webprod.mondomaine.fr has address 192.168.61.2 with r.lookupAddress(sys.argv[1]).addCallback(gotAddress).addErrback(gotError) that give me Addresses: [<RR name=webprod.mondomain.fr type=A class=IN ttl=86400s auth=False>], [<RR name=mondomain.fr type=NS class=IN ttl=86400s auth=False>, <RR name=mondomain.fr type=NS class=IN ttl=86400s auth=False>, <RR name =mondomain.fr type=NS class=IN ttl=86400s auth=False>, <RR name=mondomain.fr type=NS class=IN ttl=86400s au th=False>, <RR name=mondomain.fr type=NS class=IN ttl=86400s auth=False>, <RR name=mondomain.fr type=NS cla ss=IN ttl=86400s auth=False>, <RR name=mondomain.fr type=NS class=IN ttl=86400s auth=False>, <RR name=mondomain.fr type=NS class=IN ttl=86400s auth=False>, <RR name=mondomain.fr type=NS class=IN ttl=86400s auth=False>, <RR name=mondomain.fr type=NS class=IN ttl=86400s auth=False>], [<RR name=dns.mondomain.fr type=A class=IN ttl=86400s auth=False>, <RR name=ia30n.i30.in.mondomain.fr type=A class=IN ttl=86400s auth=False>, <RR name=ia34 m.i34.in.mondomain.fr type=A class=IN ttl=86400s auth=False>, <RR name=linux.i48.in.mondomain.fr type=A cla ss=IN ttl=86400s auth=False>, <RR name=ia66-3.i66.in.mondomain.fr type=A class=IN ttl=86400s auth=False>, <RR na me=l1serv2.in.mondomain.fr type=A class=IN ttl=86400s auth=False>, <RR name=l1serv4.in.mondomain.fr type=A class=IN ttl=86400s auth=False>, <RR name=l1serv5.in.mondomain.fr type=A class=IN ttl=86400s auth=False>, <RR na me=l2serv1.mondomain.fr type=A class=IN ttl=86400s auth=False>, <RR name=ia11-dns.i11.in.mondomain.fr type= A class=IN ttl=86400s auth=False>] On a CNAME I have the corresponding A record [<RR name=www.mondomain.fr type=CNAME class=IN ttl=30s auth=False>, <RR name=webprod.mondomain.fr I certainly misunderstand a basic thing. Thanks for you help.