DNS solve after second try

by Wulf   Last Updated July 11, 2019 07:00 AM

Architecture

DNS resolve dns-name after second try:

> gemeinwohl.info.tm
Server:  srv-vm-dc.vogel.local
Address:  x.10

------------
SendRequest(), len 48
    HEADER:
        opcode = QUERY, id = 2, rcode = NOERROR
        header flags:  query, want recursion
        questions = 1,  answers = 0,  authority records = 0,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm.X, type = A, class = IN

------------
------------
Got answer (116 bytes):
    HEADER:
        opcode = QUERY, id = 2, rcode = NXDOMAIN
        header flags:  response, auth. answer, want recursion, recursion avail.
        questions = 1,  answers = 0,  authority records = 1,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm.X, type = A, class = IN
    AUTHORITY RECORDS:
    ->  X
        type = SOA, class = IN, dlen = 45
        ttl = 3600 (1 hour)
        primary name server = srv-vm-dc.X
        responsible mail addr = hostmaster.X
        serial  = 7065
        refresh = 900 (15 mins)
        retry   = 600 (10 mins)
        expire  = 86400 (1 day)
        default TTL = 3600 (1 hour)

------------
------------
SendRequest(), len 48
    HEADER:
        opcode = QUERY, id = 3, rcode = NOERROR
        header flags:  query, want recursion
        questions = 1,  answers = 0,  authority records = 0,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm.X, type = AAAA, class = IN

------------
------------
Got answer (116 bytes):
    HEADER:
        opcode = QUERY, id = 3, rcode = NXDOMAIN
        header flags:  response, auth. answer, want recursion, recursion avail.
        questions = 1,  answers = 0,  authority records = 1,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm.X, type = AAAA, class = IN
    AUTHORITY RECORDS:
    ->  X
        type = SOA, class = IN, dlen = 45
        ttl = 3600 (1 hour)
        primary name server = srv-vm-dc.X
        responsible mail addr = hostmaster.X
        serial  = 7065
        refresh = 900 (15 mins)
        retry   = 600 (10 mins)
        expire  = 86400 (1 day)
        default TTL = 3600 (1 hour)

------------
------------
SendRequest(), len 36
    HEADER:
        opcode = QUERY, id = 4, rcode = NOERROR
        header flags:  query, want recursion
        questions = 1,  answers = 0,  authority records = 0,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm, type = A, class = IN

------------
------------
Got answer (36 bytes):
    HEADER:
        opcode = QUERY, id = 4, rcode = SERVFAIL
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 0,  authority records = 0,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm, type = A, class = IN

------------
------------
SendRequest(), len 36
    HEADER:
        opcode = QUERY, id = 5, rcode = NOERROR
        header flags:  query, want recursion
        questions = 1,  answers = 0,  authority records = 0,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm, type = AAAA, class = IN

------------
------------
Got answer (95 bytes):
    HEADER:
        opcode = QUERY, id = 5, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 0,  authority records = 1,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm, type = AAAA, class = IN
    AUTHORITY RECORDS:
    ->  info.tm
        type = SOA, class = IN, dlen = 47
        ttl = 900 (15 mins)
        primary name server = ns1.afraid.org
        responsible mail addr = dnsadmin.afraid.org
        serial  = 1907100261
        refresh = 86400 (1 day)
        retry   = 7200 (2 hours)
        expire  = 2419200 (28 days)
        default TTL = 3600 (1 hour)

------------
*** gemeinwohl.info.tm wurde von srv-vm-dc.X nicht gefunden: Server fa
iled.


---- second try ---------------------------------------------------------------------------------------------

> gemeinwohl.info.tm
Server:  srv-vm-dc.X
Address:  x.10

------------
SendRequest(), len 48
    HEADER:
        opcode = QUERY, id = 6, rcode = NOERROR
        header flags:  query, want recursion
        questions = 1,  answers = 0,  authority records = 0,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm.X, type = A, class = IN

------------
------------
Got answer (116 bytes):
    HEADER:
        opcode = QUERY, id = 6, rcode = NXDOMAIN
        header flags:  response, auth. answer, want recursion, recursion avail.
        questions = 1,  answers = 0,  authority records = 1,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm.X, type = A, class = IN
    AUTHORITY RECORDS:
    ->  X
        type = SOA, class = IN, dlen = 45
        ttl = 3600 (1 hour)
        primary name server = srv-vm-dc.X
        responsible mail addr = hostmaster.X
        serial  = 7065
        refresh = 900 (15 mins)
        retry   = 600 (10 mins)
        expire  = 86400 (1 day)
        default TTL = 3600 (1 hour)

------------
------------
SendRequest(), len 48
    HEADER:
        opcode = QUERY, id = 7, rcode = NOERROR
        header flags:  query, want recursion
        questions = 1,  answers = 0,  authority records = 0,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm.X, type = AAAA, class = IN

------------
------------
Got answer (116 bytes):
    HEADER:
        opcode = QUERY, id = 7, rcode = NXDOMAIN
        header flags:  response, auth. answer, want recursion, recursion avail.
        questions = 1,  answers = 0,  authority records = 1,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm.X, type = AAAA, class = IN
    AUTHORITY RECORDS:
    ->  X
        type = SOA, class = IN, dlen = 45
        ttl = 3600 (1 hour)
        primary name server = srv-vm-dc.X
        responsible mail addr = hostmaster.X
        serial  = 7065
        refresh = 900 (15 mins)
        retry   = 600 (10 mins)
        expire  = 86400 (1 day)
        default TTL = 3600 (1 hour)

------------
------------
SendRequest(), len 36
    HEADER:
        opcode = QUERY, id = 8, rcode = NOERROR
        header flags:  query, want recursion
        questions = 1,  answers = 0,  authority records = 0,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm, type = A, class = IN

------------
------------
Got answer (52 bytes):
    HEADER:
        opcode = QUERY, id = 8, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 1,  authority records = 0,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm, type = A, class = IN
    ANSWERS:
    ->  gemeinwohl.info.tm
        type = A, class = IN, dlen = 4
        internet address = 89.163.150.209
        ttl = 21481 (5 hours 58 mins 1 sec)

------------
Nicht autorisierende Antwort:
------------
SendRequest(), len 36
    HEADER:
        opcode = QUERY, id = 9, rcode = NOERROR
        header flags:  query, want recursion
        questions = 1,  answers = 0,  authority records = 0,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm, type = AAAA, class = IN

------------
------------
Got answer (95 bytes):
    HEADER:
        opcode = QUERY, id = 9, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 0,  authority records = 1,  additional = 0

    QUESTIONS:
        gemeinwohl.info.tm, type = AAAA, class = IN
    AUTHORITY RECORDS:
    ->  info.tm
        type = SOA, class = IN, dlen = 47
        ttl = 783 (13 mins 3 secs)
        primary name server = ns1.afraid.org
        responsible mail addr = dnsadmin.afraid.org
        serial  = 1907100261
        refresh = 86400 (1 day)
        retry   = 7200 (2 hours)
        expire  = 2419200 (28 days)
        default TTL = 3600 (1 hour)

------------
Name:    gemeinwohl.info.tm
Address:  89.163.150.209

I have no access to the Cisco-Router to check the config...

Does anyone have an idea why this happens? Because every unknown host will be resolved after second try... In the first try the domain is found, but not the host I'm looking for...



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