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Date: Sun, 03 Jun 2001 21:39:01 +0900
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Subject: [FreeBSD-users-jp 61999] Re: ssh_exchange_identification at root
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$B6M;3$G$9!#(B

$B!t(B $B1:Eg%j%W%i%$$G$9(B

At Fri, 30 Mar 2001 22:21:47 +0900 (JST),
Koga Youichirou wrote:
> 
> kiri@pis.toba-cmt.ac.jp:
> > 50 $BBf$"$k%/%i%$%"%s%H$H0lBf$N%5!<%P(B(NIS$B!\(BNFS)$B$N4V$GA4$F(B root $B$I$&$7$G(B
> > ssh $B$rDL$7$?$N$G$9$,!"$I$&$7$F$b0lBf$@$1(B
> > 
> > sf# slogin c50
> > ssh_exchange_identification: Connection closed by remote host
> > 
> > $B$H8@$o$l$FDL$j$^$;$s!#(BNIS$B!\(BNFS $B$G(B /home $B$H(B passwd $B$r6&M-$7$F$$$k$s$G(B
> > NIS $B%"%+%&%s%H4V$G$O>e$N$h$&$K8@$o$l$F$bG<F@$9$k$N$G$9$,(B...$B!#$A$J$_$K(B
> > c50 $B$H$$$&%/%i%$%"%s%H$G(B /root/.ssh $B$r>C$7$F?7$?$K(B ssh-keyen $B$7$F$bF1(B
> > $B$8>I>u$G$9!#!V(Bssh_exchange_identification$B!W$C$FN>J}$N%-!<$,0l=o$@$h$C(B
> > $B$F$3$H$G$9$h$M!)(B $B$b$A$m$s(B root $B$O(B NIS $B%Q%9%o!<%I$K$OF~$C$F$^$;$s!#(B
> 
> $B$=$NJ8;zNs$O(B ssh_exchange_identification() $B$GLdBj$,$"$C$?$C$F$3$H$G$9!#(B
> 
> $B%5!<%PB&$N%m%0$r;2>H$7$?$j!"%/%i%$%"%s%HB&$G(B -v $B$rJ#?t$D$1$F;n$7$F$_$k(B
> $B$H2?$+J,$+$k$+$b$7$l$^$;$s!#%5!<%PB&$b%G%P%0%b!<%I$GF0$+$9$H$5$i$K%m%0(B
> $B$rEG$$$F$/$l$=$&$G$9!#(B

$B$3$N7o$K$D$$$F0JA0$N%1!<%9$O0lBf$N%/%i%$%"%s%H$N$_$,(B slogin $B$G$-$J$$7o(B
$B$G$3$l$O%5!<%PB&$N(B sshd $B$rN)$A>e$2D>$7$?$i$&$^$/$$$-$^$7$?$,!"F1MM$N>I(B
$B>u$,J#?t%U%!%$%k$rF1;~$K(B scp $B$9$k>l9g$K5/$j$^$7$?!#<B:]$K$O(B

c49# /usr/bin/scp -v sf.cct2:/usr/setup/c01/etc/rc.conf sf.cct2:/usr/setup/c01/etc/rc.local sf.cct2:/usr/setup/c01/etc/shells sf.cct2:/usr/setup/c01/etc/host.conf sf.cct2:/usr/setup/c01/etc/hosts sf.cct2:/usr/setup/c01/etc/resolv.conf /etc

$B$N$H$-"-$K$J$j!":G8e$N(B resolv.conf $B$@$1$,%3%T!<$5$l$^$;$s!#(B

http://csl.toba-cmt.ac.jp/~kiri/trouble/scp.log

$B$b$A$m$s(B resolv.conf $B$@$1$N$H$-(B

c49# /usr/bin/scp -v sf.cct2:/usr/setup/c01/etc/resolv.conf /etc

$B$O"-$N$h$&$K$J$j$A$c$s$H%3%T!<$5$l$^$9!#(B

http://csl.toba-cmt.ac.jp/~kiri/trouble/scp_resolv_conf.log

$BB>$N>l9g$G$b:G6aNI$/5/$j$^$9!#$G!"(B
for f in ${files}; do; scp foo:/hoge/${f} /bar; done $B$H$+$7$F0l$D$:(B
$B$D(B scp $B$9$k$H!_$G(B scp foo:/hoge/bar1 foo:/hoge/bar2 ... /bar $B$H$+$7(B
$B$F0lEY$K$9$k$H(B $B!{(B $B$@$C$?$j$7$^$9!#(Bsshd $B$C$F(B scp $B0l$D$K$D$$$F(B fork
$B$9$k$s$G$9$M!#$=$l$G%5!<%PB&$N@_Dj$G0lEY$K(B fork $B$9$k?t$N>e8B$,7h$a(B
$B$i$l$F$$$k$H$+$+$J$!$H;W$$!"(B/etc/ssh/sshd_config $B$rD4$Y$F$H$3$m(B
ConnectionsPerPeriod $B$C$F$N$,$"$j$^$7$?!#$3$l$r(B

--- /etc/ssh/sshd_config.bak    Sun Jun  3 21:25:55 2001
+++ /etc/ssh/sshd_config        Sun Jun  3 21:25:55 2001
@@ -12,8 +12,8 @@
 LoginGraceTime 120
 KeyRegenerationInterval 3600
 PermitRootLogin yes
-# Rate-limit sshd connections to 5 connections per 10 seconds
-ConnectionsPerPeriod 5/10
+# Rate-limit sshd connections to 30 connections per 10 seconds
+ConnectionsPerPeriod 30/10
 # Don't read ~/.rhosts and ~/.shosts files
 IgnoreRhosts yes
 # Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication

$B$9$k$H$&$^$/$$$/$8$c$"$j$^$;$s$+(B :) $B$H$j$"$($:(B Q and A $B$G$7$g$&$,;~4V(B
$B$,L5$$$N$G(B FreeBSD-users-jp $B$KF~$l$H$/$H$$$&$3$H$G4*J[$7$F$/$@$5$$!#(B
