[UCIMC-Tech] DNS problem at IMC (clue toward fix)

[Stuart Levy]

On Tue, Mar 04, 2008 at 08:05:08AM -0600, Jay Schubert wrote:
> Tech,
> 
> Has anyone been able to follow up on Stuart's suggestion?

Josh King did last week (2/28).  And it's still working -- at least,
I can see www.books2prisoners.org from zeco.
 
> Thanks,
> Jay
> 
> On Thu, Feb 28, 2008 at 5:32 PM, Stuart Levy <slevy at ncsa.uiuc.edu> wrote:
> 
> > On Thu, Feb 28, 2008 at 04:58:10PM -0600, Jay Schubert wrote:
> > > Techsters,
> > >
> > > Can anyone make an educated guess as to why books2prisoners.org doesn't
> > > resolve properly from the IMC?
> >
> > I've seen this kind of thing too -- it likewise doesn't work to
> > resolve http://www.anti-war.net/ from inside the IMC either.
> >
> >
> > Using "host -d www.books2prisoners.org" on the inside vs. outside shows
> > the difference:
> >
> > From the "inside IMC" nameserver, which seems to be at IP addr
> > 192.168.11.1:
> >
> >    ;; ANSWER SECTION:
> >    www.books2prisoners.org. 300    IN      A       72.22.69.10
> >
> >    ;; ADDITIONAL SECTION:
> >    ns.chambana.net.        300     IN      A       74.134.241.116
> >    ns2.chambana.net.       300     IN      A       74.134.241.116
> >
> >    Received 136 bytes from 192.168.11.1#53 in 1 ms
> >    Trying "www.books2prisoners.org"
> >    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 52043
> >    ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
> >
> >    ;; QUESTION SECTION:
> >    ;www.books2prisoners.org.       IN      AAAA
> >
> >    ;; AUTHORITY SECTION:
> >    books2prisoners.org.    300     IN      SOA     ns.chambana.net.
> > hostmaster.chambana.net. 2006082411 300 300 400 300
> >
> > (note the date on the SOA record -- some time in 2006)
> >
> >
> > Meanwhile, from outside the IMC, we're seeing a different copy of the
> > books2prisoners.org zone:
> >
> >    [...]
> >
> >    ;; ANSWER SECTION:
> >    www.books2prisoners.org. 1800   IN      A       64.198.208.11
> >
> >    ;; AUTHORITY SECTION:
> >    books2prisoners.org.    3600    IN      NS      dns1.name-services.com.
> >    books2prisoners.org.    3600    IN      NS      dns2.name-services.com.
> >    [...]
> >
> >    ;; ADDITIONAL SECTION:
> >    dns1.name-services.com. 38569   IN      A       69.25.142.42
> >    dns2.name-services.com. 38569   IN      A       216.52.184.248
> >    [...]
> >
> >    ;; AUTHORITY SECTION:
> >    books2prisoners.org.    1800    IN      SOA     dns1.name-services.com.
> > info.name-services.com. 2002050701 10001 1801 604801 181
> >
> >
> > Likewise for anti-war.net.
> >
> > I bet that whatever IMC machine is at 192.168.11.1, it has a copy
> > of the zone files for books2prisoners.org and anti-war.net (others too?)
> > and is claiming authority for them even though the data is stale.
> >
> > Guessing that it's running BIND, the config file is probably
> > /etc/namedb/named.conf or something in that directory.  Could someone
> > get rid of stale zones and give the server a kick?
> >
> > Thanks
> >
> >   Stuart
> >