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To: FreeBSD-users-jp@jp.freebsd.org
From: "K.[NAO-NAO].Kawai" <kawai@scotch.cks.canon.co.jp>
In-Reply-To: Your message of "Wed, 25 Oct 2000 10:57:15 +0900 (LMT)"
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Date: Wed, 25 Oct 2000 12:51:14 +0900
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Subject: [FreeBSD-users-jp 56372] Re: telnetd
 =?ISO-2022-JP?B?GyRCJE4bKEI=?= keep-alive
 =?ISO-2022-JP?B?GyRCJE5KUTk5JEskRCQkJEYbKEI=?= 
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$B$+$o$$!w$-$d$N$s(B

From: $B9b1J>H5W(B (Teruhisa TAKANAGA) <t-takanaga@hitachi-system.co.jp>
Subject: [FreeBSD-users-jp 56369] telnetd $B$N(Bkeep-alive $B$NJQ99$K$D$$$F(B 
Date: Wed, 25 Oct 2000 10:57:15 +0900 (LMT)
$B$?(B>$BLu$"$C$F!"(Btelnetd $B$N(B keep-alive $B$rJQ99$7$J$1$l$P$J$i$J$/$J$j$^$7$?!#(B
$B$?(B>/usr/src/libexec/telnetd $B$*$h$S(B /usr/src/sys/netinet $B$rD/$a$^$7$?$,!"(B
$B$?(B>$B4vJ,!"(BC $B$NJY6/ITB-$G$"$^$jM}2r$G$-$^$;$s$G$7$?!#(B

$B$3$3$G!"LdBj$K$J$k$N$O(B C $B$@$1$8$c$"$j$^$;$s!#(B
network $B$NJ}$,!"$$$m$$$m$HLdBj$G$O!)(B

keep-alive $B$C$F!"(Bset_sockopt $B$N(B SO_KEEPALIVE $B$N;v$r1>$C$F$^$9!)(B

$B$?(B>$B$^$?%+!<%M%kJQ?t$G@_Dj$G$-$k$+$H;W$$!"(BLINT $B$rD4$Y$^$7$?$,!"$=$l$i$7$$(B
$B$?(B>$BJQ?t$r8+$D$1$k$3$H$,$G$-$^$;$s$G$7$?!#(B
sysctl -a $B$G$O!"(B
net.inet.tcp.always_keepalive: 1
$B$H$+(B
net.inet.tcp.keepidle: 7200000
net.inet.tcp.keepintvl: 75000
$B$3$l$O(B msec $BC10L$_$?$$!#(B


$B$?(B>$B$^$?!"(Bkeep-alive $B$N%G%U%)%k%H$O2?IC$K$J$k$N$G$7$g$&$+!#(B
2 $B;~4V!#(B(TCP/IP Illustrated VOL2 P818)

$B$?(B>keep-alive $B$r!"Nc$($P(B 30 $BICKh$KAw=P$9$k$h$&$K$9$k$?$a$K$O!"6qBNE*$K(B
$B$?(B>$B$I$N$h$&$K@_Dj$9$l$P$h$m$7$$$N$G$7$g$&$+!#(B
system $BJQ?t$J$N$G!"A4$F$K1F6A$9$k;v$K$J$j$^$9!#(B
$B!V$3$l$rJQ99$7$F$b!"NI$$;v$O$J$K$b$J$$!W$H$$$&$N$r$I$3$+$GFI$s$@$O$:$J$N$G$9$,(B
$B8+$D$+$i$J$$!#(B
