Ok, Thanks Gavin, I think that's not the behaviour I want since I am not running ipv6 and I don't need the extra chatter on the network. If I change /etc/modprobe.d/aliases to read
alias net-pf-10 ipv6 off will bad things happen? Thanks for your advice. John On Wed, Apr 21, 2010 at 2:30 PM, Gavin McCullagh <[email protected]> wrote: > Hi, > > On Tue, 20 Apr 2010, john wrote: > >> I am troubleshooting some network issues. Running wireshark and >> watching traffic I notice I have many messages like this: >> >> DNS Standard query AAAA localhost.vanguard.vashonsd.org >> DNS Standard query response, no such name > > This is normal enough. The process is usually: > > 1. The resolver will attempt to find an IPv6 AAAA address for the name. > 2. If an IPv6 address is returned, see is there a route to it. > 3. Attempt to connect over IPv6. > > If any of the above fail, do the same for IPv4. So a DNS query for AAAA > records is pretty normal. If you don't have IPv6 set up, step 2 will fail, > even where a AAAA address is returned. > >> /etc/hosts looks like >> >> 127.0.0.1 localhost >> 127.0.1.1 vbuntu vbuntu.vanguard.vashonsd.org >> 10.114.5.50 paul.vanguard.vashonsd.org paul >> >> my /etc/nsswitch.conf file has this entry >> >> hosts files dns wins > > So when /etc/hosts is checked for a AAAA record, that fails and a DNS > request is made. > >> What exactly is going on here? It looks like the server is trying to query >> a IP6 FQDN for localhost. > > Yup. This is pretty normal. > > Gavin > > > -- > edubuntu-users mailing list > [email protected] > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/edubuntu-users > -- edubuntu-users mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/edubuntu-users
