Re: smail confusion
James A. Robinson writes ("Re: smail confusion "):
> Very odd output. It seems to really be asking for the fqdn like it is
> supposed to... perhaps there is a bug in my DNS setup -- but nslookup
> resolves the short hostnames without any problem. I've appended a uu
> of the tests for:
nslookup is using a different nameserver, I think. The one your Smail
is using, 198.112.200.8, is giving me bogus answers, whereas the real
nameservers for the domain (the ones listed in its NS records) appear
to be OK (I haven't tried each one).
Check your resolv.conf.
Enclosed are some session transcripts.
Ian.
-chiark:~> host -t mx -v plato.simons-rock.edu.
Query about plato.simons-rock.edu. for record types MX
Trying plato.simons-rock.edu ...
Query done, 1 answer, status: no error
The following answer is not authoritative:
plato.simons-rock.edu 85875 IN MX 10 plato.simons-rock.edu
Authoritative nameservers:
SIMONS-ROCK.edu 172275 IN NS NIC.NEAR.NET
SIMONS-ROCK.edu 172275 IN NS BU.edu
SIMONS-ROCK.edu 172275 IN NS NOC.CERF.NET
Additional information:
plato.simons-rock.edu 81555 IN A 198.112.200.2
NIC.NEAR.NET 480300 IN A 192.52.71.4
BU.edu 492465 IN A 128.197.27.7
NOC.CERF.NET 473188 IN A 192.153.156.22
-chiark:~> host -t mx -v plato.simons-rock.edu. 198.112.200.8
Server: 198.112.200.8
Query about plato.simons-rock.edu. for record types MX
Trying plato.simons-rock.edu ...
Nameserver 198.112.200.8 not responding
plato.simons-rock.edu MX record not found at 198.112.200.8, try again
-chiark:~> host -t mx -v plato.simons-rock.edu. 198.112.200.8
Server: 198.112.200.8
Query about plato.simons-rock.edu. for record types MX
Trying plato.simons-rock.edu ...
Query failed, 0 answers, authoritative status: no error
plato.simons-rock.edu has no MX record at 198.112.200.8 (Authoritative answer)
-chiark:~>
>From nslookup on chiark:
> set srchlist=/
> set all
Default Server: [198.112.200.8]
Address: 198.112.200.8
Set options:
debug defname search recurse
d2 novc noignoretc port=53
querytype=MX class=IN timeout=5 retry=4
root=ns.internic.net.
domain=
srchlist=
>
> lserver 198.112.200.8
;; res_mkquery(0, 8.200.112.198.in-addr.arpa, 1, 12)
------------
SendRequest(), len 44
HEADER:
opcode = QUERY, id = 4863, rcode = NOERROR
header flags: query, want recursion
questions = 1, answers = 0, authority records = 0, additional = 0
QUESTIONS:
8.200.112.198.in-addr.arpa, type = PTR, class = IN
------------
------------
Got answer (139 bytes):
HEADER:
opcode = QUERY, id = 4863, rcode = NXDOMAIN
header flags: response, auth. answer, want recursion, recursion avail.
questions = 1, answers = 0, authority records = 1, additional = 0
QUESTIONS:
8.200.112.198.in-addr.arpa, type = PTR, class = IN
AUTHORITY RECORDS:
-> 200.112.198.IN-ADDR.ARPA
type = SOA, class = IN, dlen = 59
ttl = 86400 (1 day)
origin = nic.near.net
mail addr = dns-admin.bbnplanet.com
serial = 950916000
refresh = 3600 (1 hour)
retry = 900 (15 mins)
expire = 864000 (10 days)
minimum ttl = 86400 (1 day)
------------
Default Server: [198.112.200.8]
Address: 198.112.200.8
> plato.simons-rock.edu
Server: [198.112.200.8]
Address: 198.112.200.8
;; res_mkquery(0, plato.simons-rock.edu., 1, 15)
------------
SendRequest(), len 39
HEADER:
opcode = QUERY, id = 4864, rcode = NOERROR
header flags: query, want recursion
questions = 1, answers = 0, authority records = 0, additional = 0
QUESTIONS:
plato.simons-rock.edu, type = MX, class = IN
------------
timeout (0 secs)
------------
Got answer (39 bytes):
HEADER:
opcode = QUERY, id = 4864, rcode = NOERROR
header flags: response, auth. answer, want recursion, recursion avail.
questions = 1, answers = 0, authority records = 0, additional = 0
QUESTIONS:
plato.simons-rock.edu, type = MX, class = IN
------------
;; res_mkquery(0, plato.simons-rock.edu, 1, 15)
------------
SendRequest(), len 39
HEADER:
opcode = QUERY, id = 4865, rcode = NOERROR
header flags: query, want recursion
questions = 1, answers = 0, authority records = 0, additional = 0
QUESTIONS:
plato.simons-rock.edu, type = MX, class = IN
------------
------------
Got answer (39 bytes):
HEADER:
opcode = QUERY, id = 4865, rcode = NOERROR
header flags: response, auth. answer, want recursion, recursion avail.
questions = 1, answers = 0, authority records = 0, additional = 0
QUESTIONS:
plato.simons-rock.edu, type = MX, class = IN
------------
*** No mail exchanger (MX) records available for plato.simons-rock.edu
>
Reply to: