On Fri, Feb 4, 2011 at 15:31, Geoff Shang <ge...@quitelikely.com> wrote: > On Fri, 4 Feb 2011, geoffrey mendelson wrote: > >> Possibly never, but at least for a long time. The current DNS system is >> IPv4 only, but serves both IPv4 and IPv6. If you have your DNS set up to >> include IPv6, the information will be available, but the client needs to be >> able to interpet it. > > Some root-servers now have IPv6 addresses. Until I started writing this, I > was under the impression that all did, but according to > ftp://ftp.internic.net/domain/named.root (which is the authoritative source > for the root-servers list), only A.ROOT-SERVERS.NET, F.ROOT-SERVERS.NET, > H.ROOT-SERVERS.NET, I.ROOT-SERVERS.NET, J.ROOT-SERVERS.NET, > K.ROOT-SERVERS.NET, L.ROOT-SERVERS.NET and M.ROOT-SERVERS.NET have IPv6 > addresses.
Only 2 out of the 13 .net and .com main name servers have IPv6 addresses, although I guess for today that's enough. I checked and all .org and .info name servers have IPv6 addresses. For .il only 2 name servers have IPv6 addresses. For .eg only 1 (out of 3) name server has an IPv6 address. http://www.iana.org/domains/root/db/ http://www.iana.org/domains/root/db/net.html http://www.iana.org/domains/root/db/com.html http://www.iana.org/domains/root/db/org.html http://www.iana.org/domains/root/db/info.html All the major ISPs in Israel's name servers don't have IPv6 addresses. Some of my hosting provider (servage.net)'s name servers have IPv6 addresses. I think they don't define IPv6 addresses to all the name servers, because some users will not work when IPv6 addresses are defined - and they can query only servers who don't have any IPv6 address defined. >> Since BIND is open source software, nothing is preventing you or anyone >> else from adding IPv6 support to it. Eventually someone will do it, and 100% >> IPv6 networks will become possible. > > Are you saying that Bind cannot connect to DNS root-servers over IPv6? What > other functionality is it missing? Certainly we run a virtual server on an > IPv6 connection that also runs an authoritative DNS server for those domains > and we've experienced no problems. I think BIND comes with a default root servers list, and this list is IPv4. Then if you work only with IPv4, you will not have any root server defined. But I'm not sure, last time I checked was a long time ago. By the way, I noticed a problem with one of the .il name servers - ns-il.ripe.net [193.0.12.108] returns the other .il name servers and not the domain's name servers - for example [http://www.dnsstuff.com/tools/legacy/?formaction=DNSLOOKUP&ToolFormName=customlookup&name=walla.co.il&r=235660&detail=0&type=MX] (press "Click Here"). Do you know why they added this name server to the list of .il name servers? DNS server handling your query: ns-il.ripe.net. DNS server's address: 193.0.12.108#53 Non-authoritative answer: *** Can't find walla.co.il: No answer Authoritative answers can be found from: co.il nameserver = nsb.ns.il. co.il nameserver = nse.ns.il. co.il nameserver = sns-pb.isc.org. co.il nameserver = nsd.ns.il. co.il nameserver = dns8.denic.de. co.il nameserver = ildns.huji.ac.il. co.il nameserver = lookup.iucc.ac.il. nsb.ns.il internet address = 192.115.210.60 nsd.ns.il internet address = 149.20.56.132 nsd.ns.il has AAAA address 2001:4f8:3:37::11 nse.ns.il internet address = 192.115.141.253 ildns.huji.ac.il internet address = 128.139.6.66 lookup.iucc.ac.il internet address = 128.139.34.240 By the way, why do 012 smile (Internet Zahav) and Netvision have only 2 name servers? Is it enough? Do their DNS servers never fail? Uri Even-Chen Mobile Phone: +972-50-9007559 E-mail: u...@speedy.net Website: http://www.speedy.net/ _______________________________________________ Linux-il mailing list Linux-il@cs.huji.ac.il http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
