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To: man-jp@jp.freebsd.org
From: IIJIMA Akihiro <aki@noc.titech.ac.jp>
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$B!V(BDNS & BIND $B2~D{HG!W$r$_$F$_$^$7$?!#(B

> no-fetch-glue
>   $B$3$l$O1~EzCf$NIUB0%G!<%?(B ``additional data'' $B%;%/%7%g%s$r(B
>   $B@8@.$9$k;~$K!"(BBIND $B$,(B missing glue $B$r%U%'%C%A$7$J$$$h$&$K$7$^$9!#(B

$B$=$NB>$b$m$b$m$N>pJs(B $B$C$F46$8$G$7$g$&$+!#(B


$BIaDL!"(BBIND$B$O(B $B8!:wMW5a$,Aw$i$l$F$/$k$H(B $B$=$l$KEz$($h$&$H:F5"E*$J8!:w(B(.$B$+(B
$B$iC)$k8!:w(B)$B$r$7$^$9!#$^$?(B $B$=$N;~$K(B $BESCf$G=P$F$-$?7k2L$r(B cache$B$7$^$9!#(B

 root $B%5!<%P$,(B $B$3$s$J$3$H$r$7$F$k$H=hM}$,=E$/$C$F$7$g$&$,$J$$$s$N$G(B
$B$3$NF0:n$r;_$a$F$"$j$^$9!#(B

$B$=$l$K$O(B
options no-recursion
$B$r;XDj$7$F(B $B:F5"8!:w$r(B STOP$B$7!"(B
$B%-%c%C%7%e$b$7$?$/$J$1$l$P(B
options no-fetch-glue
$B$r;XDj$7$^$9!#(B

$BNc$($P(B $BIaDL$K(B nslookup$B$G(B NS$B$r8!:w$9$k$H(B

> set type=ns
> titech.ac.jp.
Server:  nocs1.noc.titech.ac.jp
Address:  131.112.126.1

titech.ac.jp    nameserver = ns.fujisawa.wide.ad.jp
titech.ac.jp    nameserver = ns1.noc.titech.ac.jp
titech.ac.jp    nameserver = ns2.noc.titech.ac.jp
ns.fujisawa.wide.ad.jp  internet address = 203.178.136.62
ns1.noc.titech.ac.jp    internet address = 131.112.125.4
ns2.noc.titech.ac.jp    internet address = 131.112.125.16

$BEz$($H$7$F$O(B $B:G=i$N(B 3$B9T(B(NS$B$rC4Ev$9$k%[%9%HL>(B)$B$@$1$"$l$P$h$/$F(B
$B$"$H$N(B3$B9T(B($B3F%^%7%s$N(BIP$B%"%I%l%9(B)$B$O(B $B$*$^$1(B(additional data)$B$G$9!#(B

$B$3$N$*$^$1$r@8@.$9$k$?$a$N%G!<%?$N$3$H$r(B missing glue $B$H8F$s$G$$$k$h$&(B
$B$G$9!#(B


$B$?$a$7$K(B $B<j85$G(B $B$3$N(B2$B$D$N(B option$B$r;XDj$7$?(B named$B$K8!:w$rEj$2$F$_$k$H(B

> set debug
> titech.ac.jp.
Server:  localhost
Address:  127.0.0.1

;; res_mkquery(0, titech.ac.jp, 1, 1)
------------
Got answer:
    HEADER:
        opcode = QUERY, id = 44727, rcode = NOERROR
        header flags:  response, want recursion
        questions = 1,  answers = 0,  authority records = 13,  additional = 0

    QUESTIONS:
        titech.ac.jp, type = A, class = IN
    AUTHORITY RECORDS:
    ->  (root)
        nameserver = A.ROOT-SERVERS.NET
        ttl = 0 (0 secs)
$B!cN,!d(B	
    ->  (root)
        nameserver = M.ROOT-SERVERS.NET
        ttl = 0 (0 secs)

------------
Name:    titech.ac.jp
Served by:
- A.ROOT-SERVERS.NET
$B!cN,!d(B	
- M.ROOT-SERVERS.NET

$B$J$K$r8!:w$7$F$b(B $B!V(BROOT-serevr $B$KJ9$1!W$H8@$o$l$^$9!#(B


$BIaDL$N(B named$B$K(B debug$BIU$-$G(B $B8!:w$9$k$H(B

> set debug		$B$3$l$,%]%$%s%H(B
> titech.ac.jp.
Server:  nocs1.noc.titech.ac.jp
Address:  131.112.126.1

;; res_mkquery(0, titech.ac.jp, 1, 2)
------------
Got answer:
    HEADER:
        opcode = QUERY, id = 7, rcode = NOERROR
        header flags:  response, auth. answer, want recursion, recursion avail.
        questions = 1,  answers = 3,  authority records = 0,  additional = 3

    QUESTIONS:
        titech.ac.jp, type = NS, class = IN
    ANSWERS:
    ->  titech.ac.jp
        nameserver = ns1.noc.titech.ac.jp
        ttl = 21600 (6 hours)
    ->  titech.ac.jp
        nameserver = ns2.noc.titech.ac.jp
        ttl = 21600 (6 hours)
    ->  titech.ac.jp
        nameserver = ns.fujisawa.wide.ad.jp
        ttl = 21600 (6 hours)
    ADDITIONAL RECORDS:				$B$3$l$,(B $B$*$^$1(B
    ->  ns1.noc.titech.ac.jp			$B$3$l$O(B named$B7/$,>!<j$K(B
        internet address = 131.112.125.4	$BIU$1$F$/$k(B
        ttl = 21600 (6 hours)
    ->  ns2.noc.titech.ac.jp
        internet address = 131.112.125.16
        ttl = 21600 (6 hours)
    ->  ns.fujisawa.wide.ad.jp
        internet address = 203.178.136.62
        ttl = 773 (12 mins 53 secs)

$B$F$N$,(B $B3NG'$G$-$^$9!#(B
--
$BEl5~9)6HBg3X(B $BAm9g>pJs=hM}%;%s%?!<(B $B%M%C%H%o!<%/%7%9%F%`1?MQ3](B
	$BHSEg(B $B><Gn(B (Akihiro Iijima) aki@noc.titech.ac.jp

