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Date: Wed, 19 May 1999 17:45:37 +0900
From: marina <marina@yaya.forks.co.jp>
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Subject: [FreeBSD-net-jp 1573] Re: [Q]:DNS 
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$BIp@P$G$9!#(B

> Connection attempt to UDP 172.16.0.50:4833 from 172.16.0.1:53
> Connection attempt to UDP 172.16.0.50:4835 from 172.16.0.1:53
> $B%0%m!<%P%k$J%"%I%l%9$+$i$N%j%/%(%9%H$OJLESD4$Y$k$H$7$F!"5?Ld$J$N$O(B
> $B%m!<%+%k$J(BDNS$B%^%7%s$+$i$N%j%/%(%9%H$G$9!#(B
> 53$BHV$C$F$3$H$O!"(BDNS$B$+$i$@$H;W$&$s$G$9!J!)!K$,(B
> DNS$B$K5-=R$7$F$"$k%^%7%s$KBP$7$F@8$-$F$$$k$+!"3NG'$7$F$k$s$G$7$g$&$+!)(B

sanpei> 
sanpei>  httpd $B%5!<%P(B --> DNS $B%5!<%P$X$N%Q%1%C%H$NN.$l$,8+$($J$$$N$G(B, 
sanpei> $B8m$C$F$$$k$+$b$7$l$^$;$s$,(B. 
sanpei> 
sanpei>   $BC1$K(B, httpd $B$K%"%/%;%9$7$F$-$?%[%9%H$N5U0z$-(B(IP-->hostname)$B$NLd$$9g$o$;$r(B
sanpei> httpd $B%5!<%P$,(B DNS $B%5!<%P$K$*$3$J$C$F(B, $B$=$N$*JV;v$G$O(B?
sanpei> 
sanpei> MIHIRA Sanpei Yoshiro
sanpei> $B%;%-%e%j%F%#!<8~>e$rA@$&$J$i$P(B, ipfw $B$d(B IP Filter $B$r;H$C$F(B
sanpei> filter $B$r$+$1$?J}$,NI$$$H;W$$$^$9(B. 
$B%U%#%k%?!<$O%k!<%?$G$+$1$F$$$^$9!#!J<jH4$-$G$9$,!#!#!#!K(B

$B%m%0$N0UL#$H$7$F(B 172.16.0.50(DNS):50 $B$+$i(B 172.16.0.50(HTTPD):4835$B$X$N(B
$B%"%/%;%9!J<:GT$K=*$o$C$?$,!K$C$F0UL#$@$H;W$C$F$k$s$G$9$,!#!#!#(B

$B;29M$K$7$?!"%;%-%e%j%F%#(BHOW-TO$B$K$O(B
>$B$3$l$O$"$J$?$N%5!<%P!<$,%5!<%S%9$rDs6!$7$F$J$$%]!<%H$K@\B3$r;n$_$i$l$?$i(B
>$B%m%0$r(B $B<h$k$h$&$K$9$k$b$N$G$9!#(B $BNc$($P!"$"$J$?$N%3%s%T%e!<%?$G(BDNS $B%5!<%P!<$,(B
>$BF0$$$F$J$$;~!"C/$+$,$"$J$?$N%3%s%T%e!<%?$r(B DNS $B$H$7$F;H$*$&$H$7$?$i!"(B
> $B$"$J$?$O$3$N$h$&$J%a%C%;!<%8$r<u$1<h$k$G$7$g$&!#(B 
>Connection attempt to UDP yourIP:53 from otherIP$B!'(BX
>           (X $B$N$H$3$m$K$O(B 1024 $B0J>e$N%]!<%HHV9f$,F~$k(B)
>http://www.ipc.hiroshima-u.ac.jp/~u0682151/how2.html $B$h$j0zMQ(B

router ----- static-NAT --172.16.0.50-- HTTPD&squid(FreeBSD 2.2.8R)
         |
         |-- static-NAT --172.16.0.51-- $B308~$1(BDNS&Mail(FreeBSD 2.2.8R)
         |-- static-NAT --172.16.0.53-- $B308~$1(BDNS2(FreeBSD 2.2.8R)
         |-- 
       ------------- Router $B$K$h$k(BIP$B%^%9%+%l!<%IAjEv$N5!G=$K$h$j(B
         |                  static-NAT $BEy$O9T$C$F$$$J$$!J0J2<$N%^%7%s!K(B
         |
         |--172.16.0.1-- $BFb8~$-(BDNS&NTPD(FreeBSD2.2.5R)
         |--172.16.0.2-- $BFb8~$-(BDNS2(FreeBSD2.2.8R)
         |--172.16-- $B3F%/%i%$%"%s%H$?$A!J%f!<%6!<!K(B
$B$*$*$^$+$K!"%M%C%H%o!<%/9=@.$O$3$&$J$C$F$^$9!#(B

$B%m!<%+%k(BDNS$B$@$1$+$H;W$C$F$$$^$7$?$,!J$=$N8~$1(BDNS$B$N%m%0!K(B
> Connection attempt to UDP 127.0.0.1:512 from 127.0.0.1:4242
> Connection attempt to UDP 127.0.0.1:512 from 127.0.0.1:4249
> Connection attempt to UDP 127.0.0.1:512 from 127.0.0.1:4259
> Connection attempt to UDP 172.16.0.51:4256 from 172.16.0.51:53
> Connection attempt to UDP 127.0.0.1:512 from 127.0.0.1:4264
> Connection attempt to UDP 127.0.0.1:512 from 127.0.0.1:4271
$B$J$I$H(B
$B308~$1(BDNS$B$,<+J,<+?H$KBP$7$F$b9T$C$F$$$k$h$&$G!#!#!#!#(B

#DNS$BEy$N5-=R$K%_%9$,$"$k$N$G$"$m$&$+!#!#!#(B
#$B%m%0$N0UL#$r<h$j0c$($F$$$k$N$G$7$g$&$+!#!#!#(B
$B<+J,$J$j$K$b9M$($F$_$^$9$,!"$5$i$J$k!"8f;XFn$/$@$5$$!#(B
$B$3$lD4$Y$m$J$I$d$3$3$N@_Dj$O$J$I$r$*4j$$$7$^$9!#(B

$B%m!<%+%k(BDNS$B$N(Brc.conf / inet.conf $B$G$9!#(B
tcp_extensions="YES"            # Allow RFC1323 & RFC1644 extensions (or NO).
syslogd_enable="YES"            # Run syslog daemon (or NO).
inetd_enable="YES"              # Run the network daemon displatcher (or NO).
named_enable="YES"              # Run named, the DNS server (or NO).
ntpdate_enable="YES"            # Run the ntpdate to sync time (or NO).
xntpd_enable="YES"              # Run xntpd Network Time Protocol (or NO).
cron_enable="YES"       # Run the periodic job daemon.
sendmail_enable="YES"   # Run the sendmail daemon (or NO).

ftp     stream  tcp     nowait  root    /usr/libexec/ftpd       ftpd -l
telnet  stream  tcp     nowait  root    /usr/libexec/telnetd    telnetd
shell   stream  tcp     nowait  root    /usr/libexec/rshd       rshd
login   stream  tcp     nowait  root    /usr/libexec/rlogind    rlogind
finger  stream  tcp     nowait  nobody  /usr/libexec/fingerd    fingerd -s
comsat  dgram   udp     wait    root    /usr/libexec/comsat     comsat
daytime stream  tcp     nowait  root    internal
daytime dgram   udp     wait    root    internal
time    stream  tcp     nowait  root    internal
time     dgram  udp     wait    root    internal
pop3    stream  tcp     nowait  root    /usr/local/libexec/popper       popper

-----------------------------------------------------
Masanori Takeishi,  E-Mail: marina@yaya.forks.co.jp
