サーバがリブートしてIPアドレスが変わってもNFSマウントが切断されません

[matsui888]

matsui888$B$H?=$7$^$9!#(BRedhat9$B$G$N4D6-$G$9!#(B

Redhat9(nfs$B%5!<%P(B hoge.dyndns.net)
|
WAN
|
Redhat9(nfs$B%/%i%$%"%s%H(B)

$B$H$J$C$F$$$^$7$F!"(B

[nfsServer]# cat /etc/fstab | grep fat32
/dev/hdb1 /mnt/fat32 vfat
codepage=932,iocharset=euc-jp,dafaults,rw,user,exec,umask=0 0 0

[nfsServer]# exportfs -v | grep hoge.dyndns.net
/mnt/fat32 hoge.dyndns.net(rw,wdelay,no_root_squash)

[nfsServer]# ifconfig ppp0 | grep inet
inet addr:xxx.xxx.xxx.xxx P-t-P:210.130.183.132
Mask:255.255.255.255

[nfsClient]# host hoge.dyndns.net
hoge.dyndns.net has address xxx.xxx.xxx.xxx

[nfsClient]# mount -
t nfs -o soft,timeo=1 hoge.dyndns.net:/mnt/fat32 /mnt/hoge_dyndns_net_nfs

$B$G%^%&%s%H=PMh$^$9!#(B

[nfsClient]# mount | grep hoge.dyndns.net
hoge.dyndns.net:/mnt/fat32 on /mnt/hoge_dyndns_net_nfs type nfs
(rw,soft,timeo=1,addr=xxx.xxx.xxx.xxx)

$B$H$3$m$,(BnsfServer$BB&$,%j%V!<%H$7$F%0%m!<%P%k%"%I%l%9$,JQ$o$j$^$7$?$N$K(B

[nfsServer]# ifconfig ppp0 | grep inet
inet addr:yyy.yyy.yyy.yyy P-t-P:210.130.183.132
Mask:255.255.255.255
[nfsClient]# host hoge.dyndns.net
hoge.dyndns.net has address yyy.yyy.yyy.yyy

mount$B%3%^%s%I$G%^%&%s%H>u67$r3NG'$7$F$_$^$7$?$iAjJQ$o$i$:(B

[nfsClient]# mount | grep hoge.dyndns.net
hoge.dyndns.net:/mnt/fat32 on /mnt/hoge_dyndns_net_nfs type nfs
(rw,soft,timeo=1,addr=xxx.xxx.xxx.xxx)

$B$H%^%&%s%H$5$l$?$^$^$J$N$G$9!#$7$+$b(B

[nfsClient]# umount /mnt/hoge_dyndns_net_nfs
Cannot MOUNTPROG RPC: RPC: $B%]!<%H%^%C%Q!<$N<:GT$G$9(B - RPC: $B%?%$%`%"%&%H$7$^(B
$B$7$?(B
umount: /mnt/hoge_dyndns_net_nfs: $B%G%P%$%9$r;HMQCf$G$9(B

$B$H$J$j!"%"%s%^%&%s%H$G$-$^$;$s!#(B
$B$3$l$O2?$,860x$J$N$G$7$g$&$+(B?

[k***@gssm.otsuka.tsukuba.ac.jp]

$B5WLn$G$9!#(B

Post by matsui888
$B$H$3$m$,(BnsfServer$BB&$,%j%V!<%H$7$F%0%m!<%P%k%"%I%l%9$,JQ$o$j$^$7$?$N$K(B

$B%"%s%^%&%s%H$NF0:n$r<B9T$7$J$$8B$j>!<j$K$O%"%s%^%&%s%H$5$l$J$$(B
$B$G$7$g$&!#$=$&$"$k$Y$-$G$9$h$M!#%j%V!<%H$7$F%5!<%PB&$,%j%;%C%H$5(B
$B$l$?$3$H$r$3$A$iB&$OCN$i$J$$$s$G$9$+$i!#(B

Post by matsui888
$B$H%^%&%s%H$5$l$?$^$^$J$N$G$9!#(B

$BEvA3$G$9$h$M!#(B

Post by matsui888
$B$H$J$j!"%"%s%^%&%s%H$G$-$^$;$s!#(B

$B%5!<%P$N%"%I%l%9$,JQ$o$C$?$+$i85$N%5!<%P(B(IP$B%"%I%l%9(B)$B$HDL?.$G$-(B
$B$J$$$s$G$7$g(B? $B$7$?$i%"%s%^%&%s%H$b$G$-$J$$$o$1$G$9!#(B

Post by matsui888
$B$3$l$O2?$,860x$J$N$G$7$g$&$+(B?

$B860x$H$7$F$O$=$&$$$&$3$H$G$7$g$&!#(B $B5WLn(B

[Yasushi Shinjo]

$B?7>k!wC^GHBg3X>pJs$G$9!#$3$s$K$A$O!#(B

Post by k***@gssm.otsuka.tsukuba.ac.jp
$B5WLn$G$9!#(B

Post by matsui888
$B$H$J$j!"%"%s%^%&%s%H$G$-$^$;$s!#(B

$B%5!<%P$N%"%I%l%9$,JQ$o$C$?$+$i85$N%5!<%P(B(IP$B%"%I%l%9(B)$B$HDL?.$G$-(B
$B$J$$$s$G$7$g(B? $B$7$?$i%"%s%^%&%s%H$b$G$-$J$$$o$1$G$9!#(B

$B%"%s%^%&%s%H$O!"K\Ev$O%/%i%$%"%s%HB&$@$1$N=hM}$G==J,$J$N$G!"(B
$B%M%C%H%o!<%/$,@Z$l$F$b$G$-$k$H$$$&OC$O$"$j$^$9!#$?$@!"(B
showmount $B%3%^%s%I$N$?$a$K?***@Z$G%5!<%P$KDLJs$7$F$$$k$@$1$J$N(B
$B$G!"DLJs$7$J$$$h$&$K$7$F%"%s%^%&%s%H$G$-$l$P$$$$$G$9!#$?$@!"(B
$B<B:]LdBj!"(Bumount $B%3%^%s%I$N%W%m%0%i%`$NLdBj$G!"$=$&$G$-$J$$(B
$B$3$H$b$"$k$+$b!#@N$O!"(B

umount hoge.dyndns.net:/mnt/fat32 &
umount hoge.dyndns.net:/mnt/fat32 &

$B$H#22s$d$C$F%"%s%^%&%s%H$7$F$^$7$?!##12sL\$OJV$C$F$-$^$;$s$,!"(B
$B%"%s%^%&%s%H$O<B9T$5$l$F$$$^$9!##22sL\$O!"(B/etc/mnt $B%U%!%$%k(B
$B$r=q$-49$($F$$$^$9!#(B

$B%5!<%P$N%"%I%l%9$,JQ$C$F$b$$$$$h$&$K$9$k$K$O!"(BVPN $B$r;H$($P$$(B
$B$$$s$8$c$J$$$+$J$"!#(B

$B!@!@!!?7>k!!Lw!!!J$7$s$8$g$&!!$d$9$7!K!!!@!@(B
$B!@!@!!C^GHBg3X!!EE;R!&>pJs!!!!!!!!!!!!!!!@!@(B

[d***@anet.ne.jp]

Post by Yasushi Shinjo
$B<B:]LdBj!"(Bumount $B%3%^%s%I$N%W%m%0%i%`$NLdBj$G!"$=$&$G$-$J$$(B

umount -f $B$G$O$G$-$^$;$s$+!)(B

http://www.linux.or.jp/JM/html/util-linux/man8/umount.8.html

[matsui888]

$B$42sEzM-Fq$&$4$6$$$^$7$?!#(B

Post by k***@gssm.otsuka.tsukuba.ac.jp
$B%"%s%^%&%s%H$NF0:n$r<B9T$7$J$$8B$j>!<j$K$O%"%s%^%&%s%H$5$l$J$$(B
$B$G$7$g$&!#$=$&$"$k$Y$-$G$9$h$M!#%j%V!<%H$7$F%5!<%PB&$,%j%;%C%H$5(B
$B$l$?$3$H$r$3$A$iB&$OCN$i$J$$$s$G$9$+$i!#(B

$B$=$&$G$7$?$+!#2r$j$^$7$?!#(B

Post by k***@gssm.otsuka.tsukuba.ac.jp
umount hoge.dyndns.net:/mnt/fat32 &
umount hoge.dyndns.net:/mnt/fat32 &
$B$H#22s$d$C$F%"%s%^%&%s%H$7$F$^$7$?!##12sL\$OJV$C$F$-$^$;$s$,!"(B
$B%"%s%^%&%s%H$O<B9T$5$l$F$$$^$9!##22sL\$O!"(B/etc/mnt $B%U%!%$%k(B
$B$r=q$-49$($F$$$^$9!#(B

2$B2s;n$7$F$_$^$7$?$,!"(Bmount$B%3%^%s%I$9$k$HI=<($5$l$F$7$^$$$^$9!#(B

Post by k***@gssm.otsuka.tsukuba.ac.jp
umount -f $B$G$O$G$-$^$;$s$+!)(B

#umount -f /mnt/hoge_dyndns_net_nfs
Cannot MOUNTPROG RPC: RPC: $B%]!<%H%^%C%Q!<$N<:GT$G$9(B - RPC: $B%?%$%`%"%&%H$7$^(B
$B$7$?(B
umount2: $B%G%P%$%9$b$7$/$O%j%=!<%9$,%S%8!<>uBV$G$9(B
umount: /mnt/hoge_dyndns_net_nfs: $B%G%P%$%9$r;HMQCf$G$9(B

$B$H$J$C$F$7$^$$$^$9!#(B
$B?t2s$d$C$F$_$^$7$?$,AjJQ$o$i$:$G$9!#(B

[Yasushi Shinjo]

$B?7>k!wC^GHBg3X>pJs$G$9!#$3$s$K$A$O!#(B

Post by matsui888
#umount -f /mnt/hoge_dyndns_net_nfs
Cannot MOUNTPROG RPC: RPC: $B%]!<%H%^%C%Q!<$N<:GT$G$9(B - RPC: $B%?%$%`%"%&%H$7$^(B
$B$7$?(B
umount2: $B%G%P%$%9$b$7$/$O%j%=!<%9$,%S%8!<>uBV$G$9(B
umount: /mnt/hoge_dyndns_net_nfs: $B%G%P%$%9$r;HMQCf$G$9(B

device busy ($B%G%P%$%9$r;HMQCf$G$9(B)$B$J$i!"(BNFS $B$@$m$&$H%m!<%+%k!&(B
$B%G%#%9%/$@$m$&$H!"(Bumount $B$K$O<:GT$7$^$9!#!J(BNFS $B$N>l9g!"%5!<(B
$B%P$HDL?.$,$G$-$k>uBV$G$bDL?.$,$G$-$J$$>uBV$G$b<:GT$7$^$9!#!K(B

$B$^$:$O!"(Bdevice busy $B$r2r>C$7$J$$$H%@%a$G$9$M!#(B

device busy $B$r2r>C$9$k$K$O!";H$C$F$$$=$&$J%W%m%;%9$r(B kill $B$9(B
$B$k$H$$$&$3$H$J$s$@$1$I!"$3$N;~!"(BD $B>uBV$N%W%m%;%9$G!"(BNFS $B$K%"(B
$B%/%;%9$K9T$C$F$$$k$b$N$,$"$k$H!"(Bkill $B$G$-$J$+$C$?$j$9$k$s$G(B
$B$9$h$M!#$G!"$7$g$&$,$J$$$+$i%j%V!<%H$9$k$H!#(B

$B!@!@!!?7>k!!Lw!!!J$7$s$8$g$&!!$d$9$7!K!!!@!@(B
$B!@!@!!C^GHBg3X!!EE;R!&>pJs!!!!!!!!!!!!!!!@!@(B

[matsui888]

matsui888$B$G$9!#(B
$B$42sEzM-Fq$&$4$6$$$^$9!#(B

Post by Yasushi Shinjo
device busy $B$r2r>C$9$k$K$O!";H$C$F$$$=$&$J%W%m%;%9$r(B kill $B$9(B
$B%/%;%9$K9T$C$F$$$k$b$N$,$"$k$H!"(Bkill $B$G$-$J$+$C$?$j$9$k$s$G(B
$B$9$h$M!#$G!"$7$g$&$,$J$$$+$i%j%V!<%H$9$k$H!#(B

$B$=$&$J$s$G$9$+!#(B
$B%"%s%^%&%s%H$G$-$J$$$N$O;EJ}$J$$$s$G$9$M!#!#!#(B

[d***@anet.ne.jp]

Post by matsui888
$B%"%s%^%&%s%H$G$-$J$$$N$O;EJ}$J$$$s$G$9$M!#!#!#(B

device busy $B$N860x$,%7%'%k$N%+%l%s%H%G%#%l%/%H%j$@$C$?(B
$B$H$$$&%*%A$,$h$/$"$j$^$9!#!J!0!0!((B

cd /
umount -lf /mnt/hoge_dyndns_net_nfs

$B!t(B portmap $B$r:F5/F0$7$?$i$I$&$J$k$s$@$m$&!)(B

[Kawaguti Ginga]

Post by matsui888
Redhat9(nfs$B%5!<%P(B hoge.dyndns.net)
|
WAN
|
Redhat9(nfs$B%/%i%$%"%s%H(B)

$B$*@a2p$+$b$7$l$^$;$s$,!$$3$l!$$A$c$s$H%U%#%k%?%j%s%0$H$+$7$F$$$k$s$G$7$g$&$+(B?
nfs $B$O%Q%U%)!<%^%s%90JA0$K%;%-%e%j%F%#E*$K$O<e$$%W%m%H%3%k$G$9$N$G(B
$BMWCm0U$G$9(B(NFSv4 $B$J$i$$$$$+$b$7$l$J$$$G$9$,(B)$B!%(B

$B:#2s$NLdBj$r2r7h$9$k<jCJ$H$7$F$b(B "VPN $BE=$C$?$i(B?" $B$H$$$&$N$,(B
$B$"$j$^$9$,!$%;%-%e%j%F%#$N4QE@$+$i$b(B VPN $BI,?\$8$c$J$$$+$H!%(B

$B[9M+$@$C$?$i:Q$_$^$;$s$,!$9=@.$r$h!<$/8!F$$5$l$k$3$H$r$*4+$a$7$^$9!%(B

[matsui888]

matsui888$B$H?=$7$^$9!#$42sEzM-Fq$&$4$6$$$^$9!#(B

Post by d***@anet.ne.jp

Post by matsui888
$B%"%s%^%&%s%H$G$-$J$$$N$O;EJ}$J$$$s$G$9$M!#!#!#(B

$B$H$$$&%*%A$,$h$/$"$j$^$9!#!J!0!0!((B

$B0l1~!"(Bpwd$B$G3N$+$a$F$_$?$j!"%U%!%$%k%^%M!<%8%c$b3NG'$7$F$_$?$N$G$9$,(B
$BFC$K$=$N$h$&$J;v$OM-$j$^$;$s$G$7$?!#(B

$B:#F|;n$7$F$_$^$7$?$i(B

[nfsClient]# mount | grep hoge.dyndns.net
hoge.dyndns.net:/mnt/fat32 on /mnt/hoge_dyndns_net_nfs type nfs
(rw,soft,timeo=1,addr=xxx.xxx.xxx.xxx)

$B$N8e!"%5!<%PB&$r%j%V!<%H$7$F$_$^$7$?$i!"(B

[nfsClient]# ls /mnt/zz_homeunix_com_nfs
ls: /mnt/zz_homeunix_com_nfs: $BF~NO(B/$B=PNO%(%i!<$G$9(B

[nfsClient]# umount /mnt/zz_homeunix_com_nfs
Cannot MOUNTPROG RPC: RPC: $B%]!<%H%^%C%Q!<$N<:GT$G$9(B - RPC: $B<u$1<h$l$^$;$s(B

[nfsClient]# mount | grep hoge.dyndns.net
[nfsClient]#

$B$H$J$j!"%"%s%^%&%s%H=PMh$A$c$$$^$7$?(B($BIT;W5D(B)$B!#(B

Post by d***@anet.ne.jp
cd /
umount -lf /mnt/hoge_dyndns_net_nfs

$B$I$&$7$F$b%"%s%^%&%s%H$G$-$J$/$J$C$?>l9g$^$?;n$7$F$_$?$$$H;W$$$^$9!#(B
$B$+(B?
$B$O$$!"0l1~!"(Biptables$B!"(BTCPWrapper$B$G%/%i%$%"%s%H$N(BIP$B%"%I%l%9$+$i$@$1(BNFS$B%"%/%;(B
$B%95v2D$7$F$^$9!#(B

Post by d***@anet.ne.jp
nfs $B$O%Q%U%)!<%^%s%90JA0$K%;%-%e%j%F%#E*$K$O<e$$%W%m%H%3%k$G$9$N$G(B
$BMWCm0U$G$9(B(NFSv4 $B$J$i$$$$$+$b$7$l$J$$$G$9$,(B)$B!%(B

[nfsServer]# rpm -qa | grep nfs
redhat-config-nfs-1.0.4-5
nfs-utils-1.0.1-3.9

$B$J$N$G;d$N$O<e$$$s$G$9$M!#(B

Post by d***@anet.ne.jp
$B:#2s$NLdBj$r2r7h$9$k<jCJ$H$7$F$b(B "VPN $BE=$C$?$i(B?" $B$H$$$&$N$,(B

$BM-Fq$&$4$6$$$^$9!#JY6/$7$F;n$7$F$_$?$$$H;W$$$^$9!#(B