Rogers redirect issue; Call for help

[D. Hugh Redelmeier]

| From: Madison Kelly <linux-5ZoueyuiTZhBDgjK7y7TUQ at public.gmane.org>
| 
|   Those of you on Rogers, can you try accessing my website and tell me if you
| succeed or not? David Collier-Brown noticed that he can't, and is helping me
| trace down the exact problem, but it looks like Rogers in resolving my domain
| to their own IP address.
| 
| http://wiki.tle-bu.org/index.php/D-Bus_Tutorial_and_References
| 
| This should resolve to 192.139.81.119 and be a mediawiki page with my D-Bus
| notes. If you get anything else, can you please reply with a traceroute, the
| error you got and anything you may think could help.

Was/is this a DNS or routing problem?  They are very different.

I don't like Rogers DNS: it hijacks unresolved domains.

I run my own DNS server.  I used to have it "forward" requests to
Rogers' DNS.  When Rogers started to hijack, I stopped using their
DNS.

When I did a query for wiki.tle-bu.org, there was a noticeable delay.
Perhaps if Rogers gets a long enough delay, it decided to hijack.

Anyway, it seems to work.


Here's a sample query (it worked):

     $ dig @64.71.255.198 wiki.tle-bu.org a +tcp

    ; <<>> DiG 9.2.1 <<>> @64.71.255.198 wiki.tle-bu.org a +tcp
    ;; global options:  printcmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6734
    ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 2

    ;; QUESTION SECTION:
    ;wiki.tle-bu.org.               IN      A

    ;; ANSWER SECTION:
    wiki.tle-bu.org.        38400   IN      CNAME   tle-bu.org.
    tle-bu.org.             38400   IN      A       192.139.81.119

    ;; AUTHORITY SECTION:
    tle-bu.org.             86390   IN      NS      ns1.nouvelocity.com.
    tle-bu.org.             86390   IN      NS      ns2.nouvelocity.com.

    ;; ADDITIONAL SECTION:
    ns1.nouvelocity.com.    172790  IN      A       192.139.81.119
    ns2.nouvelocity.com.    172790  IN      A       192.139.81.120

    ;; Query time: 45 msec
    ;; SERVER: 64.71.255.198#53(64.71.255.198)
    ;; WHEN: Sat Aug 30 21:15:46 2008
    ;; MSG SIZE  rcvd: 156

In case someone doesn't know how to read dig output, I'll explain a
few things.

First the dig command itself.

The @64.71.255.198 means: query the server at 64.71.255.198.  That is
the IP address of the Rogers DNS server that Rogers DHCP server told
my system to use.

The "wiki.tle-bu.org" is the domain name to query about.  I should
probably have ended it with another ".".

The "a" means: query for A records -- ones that give IP addresses.

The +tcp means query through TCP (rather than the default UDP).


Dig shows pretty plainly what a DNS answer message look like.

There are four sections, each containing zero or more sort-of DNS
records.

Each DNS record looks a bit like this:

    tle-bu.org.             38400   IN      A       192.139.81.119
                                                    ^^^^^^^^^^^^^^ value
                                            ^ kind of record.
                                              A: IPv4 address
                                              NS: name server
                                              CNAME: nickname
                                    ^^ Realm "IN" -- internet
                            ^^^^^ TTL (time to live) -- number of
                                  seconds that you can trust this answer
    ^^^^^^^^^^^ the DNS name in question

The Query section says what query is being answered.

In this example, the question was: what is the A record for
"wiki.tle-bu.org"?

The Answer section gives the answer (if any).

This Answer section shows that "wiki.tle-bu.org" is a nickname for
"tle-bu.org" and that the IP address of "tle-bu.org" is
192.139.81.119.

The Authority section showns what name servers are authoritative.

The Additional section includes additional information that the DNS
server thinks might be worthwhile.
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