Re: [BackupPC-users] rsyncd via ssh-redirected port
Les Mikesell schrieb:
Guido Schmidt wrote:
So, what could cause BackupPC not to connect to the tunnel?
I may have missed something in the thread, but did you change the ping
command
to something that would succeed?
Yes. The host is publicly available, I just put it's real name into
$Conf{PingCmd} = '$pingPath -c 1 -w 3 host.example.com';
(Have a look at my first posting.)
Guido
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Re: [BackupPC-users] rsyncd via ssh-redirected port
Chris Robertson schrieb:
Guido Schmidt wrote:
Matthias Meyer schrieb:
Guido Schmidt wrote:
Matthias Meyer wrote:
Guido Schmidt wrote:
What works? The opening and closing of the tunnel.
What does not? The connection to it. Nothing in the rsyncd-logs on
host.example.com.
If I leave DumpPostUserCmd empty the tunnel stays open and I can use it
with rsync as user backuppc on a shell providing the password by hand:
rsync -av --list-only --port=32323 backu...@localhost::Alles
/home/backuppc/test/
Do you provide the password during your script?
The ssh-connection works (authenticated via public key). The password I
refered to is for connecting to rsyncd and that is stored in
$Conf{RsyncdPasswd}.
It seems that backuppc does not reach the point where it actually tries
to connect to rsync daemon. There are no entries in the rsyncd-log
(there are when I use the rsync-command above). How can I find out more
what happens and what not?
I don't really know what the problem :-(
You can increase the loglevel with $Conf{XferLogLevel}.
I already increased it to 6, but that didn't give any more details.
What happens if you start your tunnel interactive and leave DumpPreUser as
well
as CmdDumpPostUserCmd empty.
Okay, we're getting closer. That way the backup worked.
So I either get BackupPC to open the tunnel or to do the backup. That's odd.
I'd try giving an explicit exit value upon successful tunnel creation.
...
--- /usr/local/bin/sshtunnelcontrol.orig2009-12-22
03:16:34.0 -0900
+++ /usr/local/bin/sshtunnelcontrol 2009-12-22 03:17:09.0 -0900
@@ -27,6 +27,9 @@
if ! ps -ef|grep -E ^backuppc $PID ; then
echo $PRG_NAME: Error: Tunnel does not exist
exit 1
+ else
+echo $PRG_NAME: Info: Tunnel exists
+exit 0
fi
else
echo $PRG_NAME: Error: ${PIDFILE} already exists.
Although the script should already return 0 upon successfull completion
(and it does, I tried with echo ?) I'm so desperate I gave it a try,
but no, that didn't help.
So, what could cause BackupPC not to connect to the tunnel?
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Re: [BackupPC-users] rsyncd via ssh-redirected port
Guido Schmidt wrote:
I'd try giving an explicit exit value upon successful tunnel creation.
...
--- /usr/local/bin/sshtunnelcontrol.orig2009-12-22
03:16:34.0 -0900
+++ /usr/local/bin/sshtunnelcontrol 2009-12-22 03:17:09.0 -0900
@@ -27,6 +27,9 @@
if ! ps -ef|grep -E ^backuppc $PID ; then
echo $PRG_NAME: Error: Tunnel does not exist
exit 1
+ else
+echo $PRG_NAME: Info: Tunnel exists
+exit 0
fi
else
echo $PRG_NAME: Error: ${PIDFILE} already exists.
Although the script should already return 0 upon successfull completion
(and it does, I tried with echo ?) I'm so desperate I gave it a try,
but no, that didn't help.
So, what could cause BackupPC not to connect to the tunnel?
I may have missed something in the thread, but did you change the ping command
to something that would succeed?
--
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Re: [BackupPC-users] rsyncd via ssh-redirected port
Matthias Meyer schrieb:
Guido Schmidt wrote:
Matthias Meyer wrote:
Guido Schmidt wrote:
What works? The opening and closing of the tunnel.
What does not? The connection to it. Nothing in the rsyncd-logs on
host.example.com.
If I leave DumpPostUserCmd empty the tunnel stays open and I can use it
with rsync as user backuppc on a shell providing the password by hand:
rsync -av --list-only --port=32323 backu...@localhost::Alles
/home/backuppc/test/
Do you provide the password during your script?
The ssh-connection works (authenticated via public key). The password I
refered to is for connecting to rsyncd and that is stored in
$Conf{RsyncdPasswd}.
It seems that backuppc does not reach the point where it actually tries
to connect to rsync daemon. There are no entries in the rsyncd-log
(there are when I use the rsync-command above). How can I find out more
what happens and what not?
I don't really know what the problem :-(
You can increase the loglevel with $Conf{XferLogLevel}.
I already increased it to 6, but that didn't give any more details.
What happens if you start your tunnel interactive and leave DumpPreUser as
well
as CmdDumpPostUserCmd empty.
Okay, we're getting closer. That way the backup worked.
So I either get BackupPC to open the tunnel or to do the backup. That's odd.
Why do you need the identification by rsync? I would believe you can trust
your
ssh-tunnel and dont't need an additional authentication.
There a users with shell-access to that host. Not protecting the port
would give them read-access to the whole file-system.
Guido
--
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Percussionsabteilung
Firmensitz: Karolinenstraße 4-5, 20357 Hamburg
Registergericht: Amtsgericht Hamburg, HRB 22770
Geschäftsführer: Christoph Scheffler
Tel 040-43 84 94
Fax 040-430 29 47
Öffnungszeiten:
Mo-Mi 10-19 Uhr
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Sie erreichen mich:
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Re: [BackupPC-users] rsyncd via ssh-redirected port
Guido Schmidt wrote:
Matthias Meyer schrieb:
Guido Schmidt wrote:
Matthias Meyer wrote:
Guido Schmidt wrote:
What works? The opening and closing of the tunnel.
What does not? The connection to it. Nothing in the rsyncd-logs on
host.example.com.
If I leave DumpPostUserCmd empty the tunnel stays open and I can use it
with rsync as user backuppc on a shell providing the password by hand:
rsync -av --list-only --port=32323 backu...@localhost::Alles
/home/backuppc/test/
Do you provide the password during your script?
The ssh-connection works (authenticated via public key). The password I
refered to is for connecting to rsyncd and that is stored in
$Conf{RsyncdPasswd}.
It seems that backuppc does not reach the point where it actually tries
to connect to rsync daemon. There are no entries in the rsyncd-log
(there are when I use the rsync-command above). How can I find out more
what happens and what not?
I don't really know what the problem :-(
You can increase the loglevel with $Conf{XferLogLevel}.
I already increased it to 6, but that didn't give any more details.
What happens if you start your tunnel interactive and leave DumpPreUser as
well
as CmdDumpPostUserCmd empty.
Okay, we're getting closer. That way the backup worked.
So I either get BackupPC to open the tunnel or to do the backup. That's odd.
I'd try giving an explicit exit value upon successful tunnel creation.
...
--- /usr/local/bin/sshtunnelcontrol.orig2009-12-22
03:16:34.0 -0900
+++ /usr/local/bin/sshtunnelcontrol 2009-12-22 03:17:09.0 -0900
@@ -27,6 +27,9 @@
if ! ps -ef|grep -E ^backuppc $PID ; then
echo $PRG_NAME: Error: Tunnel does not exist
exit 1
+ else
+echo $PRG_NAME: Info: Tunnel exists
+exit 0
fi
else
echo $PRG_NAME: Error: ${PIDFILE} already exists.
...
Why do you need the identification by rsync? I would believe you can trust
your
ssh-tunnel and dont't need an additional authentication.
There a users with shell-access to that host. Not protecting the port
would give them read-access to the whole file-system.
Guido
Chris
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Re: [BackupPC-users] rsyncd via ssh-redirected port
Matthias Meyer wrote:
Guido Schmidt wrote:
What works? The opening and closing of the tunnel.
What does not? The connection to it. Nothing in the rsyncd-logs on
host.example.com.
If I leave DumpPostUserCmd empty the tunnel stays open and I can use it
with rsync as user backuppc on a shell providing the password by hand:
rsync -av --list-only --port=32323 backu...@localhost::Alles
/home/backuppc/test/
Do you provide the password during your script?
The ssh-connection works (authenticated via public key). The password I
refered to is for connecting to rsyncd and that is stored in
$Conf{RsyncdPasswd}.
It seems that backuppc does not reach the point where it actually tries
to connect to rsync daemon. There are no entries in the rsyncd-log
(there are when I use the rsync-command above). How can I find out more
what happens and what not?
--
Schalloch Musikhandel GmbH
Percussionsabteilung
Firmensitz: Karolinenstraße 4-5, 20357 Hamburg
Registergericht: Amtsgericht Hamburg, HRB 22770
Geschäftsführer: Christoph Scheffler
Tel 040-43 84 94
Fax 040-430 29 47
Öffnungszeiten:
Mo-Mi 10-19 Uhr
Do+Fr 10-20 Uhr
Sa10-16 Uhr
Sie erreichen mich:
Mo 13-19 Uhr
Di 10-19 Uhr
Do 11-20 Uhr
Jeden 2. Sa 10-16 Uhr
--
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Re: [BackupPC-users] rsyncd via ssh-redirected port
Guido Schmidt wrote:
Matthias Meyer wrote:
Guido Schmidt wrote:
What works? The opening and closing of the tunnel.
What does not? The connection to it. Nothing in the rsyncd-logs on
host.example.com.
If I leave DumpPostUserCmd empty the tunnel stays open and I can use it
with rsync as user backuppc on a shell providing the password by hand:
rsync -av --list-only --port=32323 backu...@localhost::Alles
/home/backuppc/test/
Do you provide the password during your script?
The ssh-connection works (authenticated via public key). The password I
refered to is for connecting to rsyncd and that is stored in
$Conf{RsyncdPasswd}.
It seems that backuppc does not reach the point where it actually tries
to connect to rsync daemon. There are no entries in the rsyncd-log
(there are when I use the rsync-command above). How can I find out more
what happens and what not?
I don't really know what the problem :-(
You can increase the loglevel with $Conf{XferLogLevel}.
What happens if you start your tunnel interactive and leave DumpPreUser as well
as CmdDumpPostUserCmd empty.
Try your interactive:
rsync -av --list-only --port=32323 backu...@localhost::Alles
/home/backuppc/test/
If it work, start a backup via BackupPC.
Why do you need the identification by rsync? I would believe you can trust your
ssh-tunnel and dont't need an additional authentication.
br
Matthias
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[BackupPC-users] rsyncd via ssh-redirected port
Dear backuppc-users,
I'm happily using BackupPC 3.1.0 for quite a while.
I'm now trying to backup a public host (host.example.com) via an ssh-redirected
port. I don't allow any command execution on that host (and therefore cannot
use the wait command), so I wrote a script (sshtunnelcontrol, see below) to
open and close the tunnel when needed. It is called as DumpPreUserCmd and
DumpPostUserCmd.
What works? The opening and closing of the tunnel.
What does not? The connection to it. Nothing in the rsyncd-logs on
host.example.com.
If I leave DumpPostUserCmd empty the tunnel stays open and I can use it with
rsync as user backuppc on a shell providing the password by hand:
rsync -av --list-only --port=32323 backu...@localhost::Alles
/home/backuppc/test/
XferMethod is rsyncd.
RsyncdClientPort is set to 873.
I double-checked the password in /etc/BackupPC/pc/host.example.com.pl.
Running
/usr/local/BackupPC/bin/BackupPC_dump -v -f host.example.com
didn't give more information.
Thank you for any hint.
Guido
--- Begin of file /local/backup/pc/host.example.com/XferLOG.bad.z, modified
2009-12-17 19:50:13 ---
Executing DumpPreUserCmd: /usr/local/bin/sshtunnelcontrol start
host.example.com /usr/bin/ssh -CN 32323 localhost 873 backuppc 43868
SSH Tunnel Control: Opening tunnel
SSH Tunnel Control: /usr/bin/ssh -CN -L 32323:localhost:873 -l backuppc -p
43868 host.example.com
SSH Tunnel Control: Process ID is 24538
SSH Tunnel Control: Created /home/backuppc/sshtunnel-host.example.com.pid
SSH Tunnel Control: Checking for tunnel:
backuppc 24538 24537 0 19:50 ?00:00:00 /usr/bin/ssh -CN -L
32323:localhost:873 -l backuppc -p 43868 host.example.com
incr backup started back to 2009-11-24 15:50:34 (backup #0) for directory Alles
Error connecting to rsync daemon at localhost:32323: inet connect:
Verbindungsaufbau abgelehnt
Executing DumpPostUserCmd: /usr/local/bin/sshtunnelcontrol stop host.example.com
SSH Tunnel Control: Killing Process 24538
SSH Tunnel Control: Done
SSH Tunnel Control: Deleting /home/backuppc/sshtunnel-host.example.com.pid
SSH Tunnel Control: Done
Got fatal error during xfer (inet connect: Verbindungsaufbau abgelehnt)
Backup aborted (inet connect: Verbindungsaufbau abgelehnt)
--- End of file /local/backup/pc/host.example.com/XferLOG.bad.z, modified
2009-12-17 19:50:13 ---
Begin /etc/BackupPC/pc/host.example.com.pl --
$Conf{PingMaxMsec} = 400;
$Conf{RsyncArgs} = [
'--numeric-ids',
'--perms',
'--owner',
'--group',
'-D',
'--links',
'--hard-links',
'--times',
'--block-size=2048',
'--recursive',
'--checksum-seed=32761'
];
$Conf{RsyncShareName} = [
'Alles'
];
$Conf{XferLogLevel} = 3;
$Conf{XferMethod} = 'rsyncd';
$Conf{RsyncdUserName} = 'backuppc';
$Conf{DumpPreUserCmd} = '/usr/local/bin/sshtunnelcontrol start $client $sshPath
-CN 32323 $host 873 backuppc 12345';
$Conf{DumpPostUserCmd} = '/usr/local/bin/sshtunnelcontrol stop $client';
$Conf{RsyncdClientPort} = 32323;
$Conf{ClientNameAlias} = 'localhost';
$Conf{RsyncdPasswd} = '';
$Conf{UserCmdCheckStatus} = '1';
$Conf{PingCmd} = '$pingPath -c 1 -w 3 host.example.com';
End /etc/BackupPC/pc/host.example.com.pl --
Begin /usr/local/bin/sshtunnelcontrol --
#!/bin/sh
TODO=$1
CLIENT=$2
SSH_PATH=$3
SSH_OPTS=$4
SSH_TUNNEL_PORT=$5
SSH_HOST=$6
RSYNC_PORT=$7
SSH_USER=$8
SSH_PORT=$9
PRG_NAME=SSH Tunnel Control
BASEDIR=/home/backuppc
PIDFILE=${BASEDIR}/sshtunnel-${CLIENT}.pid
case $TODO in
start)
if [ ! -e ${PIDFILE} ]; then
echo $PRG_NAME: Opening tunnel
echo $PRG_NAME: $SSH_PATH $SSH_OPTS -L
$SSH_TUNNEL_PORT:$SSH_HOST:$RSYNC_PORT -l $SSH_USER -p $SSH_PORT $CLIENT
$SSH_PATH $SSH_OPTS -L $SSH_TUNNEL_PORT:$SSH_HOST:$RSYNC_PORT -l
$SSH_USER -p $SSH_PORT $CLIENT 1/dev/null 2/dev/null
#$SSH_PATH $SSH_OPTS -L $SSH_TUNNEL_PORT:$SSH_HOST:$RSYNC_PORT -l
$SSH_USER -p $SSH_PORT $CLIENT
PID=$!
echo $PRG_NAME: Process ID is $PID
echo $PID ${PIDFILE} echo $PRG_NAME: Created ${PIDFILE}
echo $PRG_NAME: Checking for tunnel:
if ! ps -ef|grep -E ^backuppc $PID ; then
echo $PRG_NAME: Error: Tunnel does not exist
exit 1
fi
else
echo $PRG_NAME: Error: ${PIDFILE} already exists.
exit 2
fi
;;
stop)
if [ ! -e ${PIDFILE} ]; then
echo $PRG_NAME: Error: Can not find process. $PIDFILE is missing.
exit 3
else
PID2KILL=`cat ${PIDFILE}`
echo $PRG_NAME: Killing Process $PID2KILL
kill -15 $PID2KILL echo $PRG_NAME: Done
echo $PRG_NAME: Deleting $PIDFILE
rm $PIDFILE echo $PRG_NAME: Done
fi
;;
*)
echo $PRG_NAME: Parameter-error
exit 4
;;
esac
End /usr/local/bin/sshtunnelcontrol --
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Re: [BackupPC-users] rsyncd via ssh-redirected port
Guido Schmidt wrote:
Dear backuppc-users,
I'm happily using BackupPC 3.1.0 for quite a while.
I'm now trying to backup a public host (host.example.com) via an
ssh-redirected port. I don't allow any command execution on that host (and
therefore cannot use the wait command), so I wrote a script
(sshtunnelcontrol, see below) to open and close the tunnel when needed. It
is called as DumpPreUserCmd and DumpPostUserCmd.
What works? The opening and closing of the tunnel.
What does not? The connection to it. Nothing in the rsyncd-logs on
host.example.com.
If I leave DumpPostUserCmd empty the tunnel stays open and I can use it
with rsync as user backuppc on a shell providing the password by hand:
rsync -av --list-only --port=32323 backu...@localhost::Alles
/home/backuppc/test/
Do you provide the password during your script?
I don't know how BackupPC can know the password for the ssh connection.
I believe $Conf{RsyncdUserName} and $Conf{RsyncdPasswd} refers to the rsync
secrets and not to the ssh connection.
I would suggest to use public/private key for ssh.
br
Matthias
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