Re: [BackupPC-users] merge incrementals with full

[Rob Owens]

I think $Conf{IncrLevels} is what you're looking for.

http://backuppc.sourceforge.net/faq/BackupPC.html#Backup-basics
http://backuppc.sourceforge.net/faq/BackupPC.html#_conf_incrlevels_

I run weekly fulls, and set $Conf{IncrLevels} = [1, 2, 3, 4, 5, 6];  so
that each incremental references the prior incremental, rather than the
prior full.

On Fri, Jul 15, 2016 at 3:39 PM, cardiganimpatience <
backuppc-fo...@backupcentral.com> wrote:

> To relieve the impact of backing up hundreds of gigabytes in a short time,
> I added several larger folders to the exclude list for a share. Then each
> day I would remove a couple from the exclude list to add more data to the
> backup.
>
> What's happening is that backup #12 is trying to go back to incremental #5
> (which is the level 1 incremental.) I added many folders in-between
> incremental #5 and incremental #10, and if I could get it to use a higher
> incremental, like #7 I think it would include those large files already in
> the pool.
>
> Backup schedules are set to the defaults except for FullKeepCnt, which is
> set to the example value of: 4, 2, 3.
>
> See pastebin for a snippet from the log:
> http://pastebin.com/Aw9zf3pD
>
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Re: [BackupPC-users] Backup PC does not wakeup

[Rob Owens]

On Tue, Jun 28, 2016 at 5:48 AM, Niels Przybilla 
wrote:

> Hello,
>
> i have the strange issue that backuppc is running … but it does not wake
> up to do new incrementals or fullbacks
>

Take a look at Wakeup Schedule on the Server tab.
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Re: [BackupPC-users] Backuppc appears to be ignoring home directories on full and incrementals

[Rob Owens]

The log shows a single backup occurring.  Did you verify that each machine
showed disk and network activity?  Maybe only one machine got backed up,
but the GUI is showing machineA's stats for machineB and machineC.

On Mon, Jun 13, 2016 at 10:53 PM, G Jones  wrote:

> The logs don't really have anything significant in them
>
> /var/lib/Backuppc/pc//LOG.062016
>
> 2016-06-13 17:59:24 full backup started for directory /
> 2016-06-13 18:00:03 full backup 0 complete, 79580 files, 1979593737 bytes,
> 0 xferErrs (0 bad files, 0 bad shares, 0 other)
>
> and from /var/log/BackupPC/LOG
>
> 2016-06-13 17:59:24 User backuppc requested backup of 
> ()
> 2016-06-13 17:59:24 Started full backup on  (pid=12981, share=/)
> 2016-06-13 18:00:00 Next wakeup is 2016-06-13 19:00:00
> 2016-06-13 18:00:03 Finished full backup on 
> 2016-06-13 18:00:03 Running BackupPC_link  (pid=13017)
> 2016-06-13 18:00:03 Finished  (BackupPC_link 
>
> This is the config that is used for the three clients and I know I need to
> clean it up (I used the web gui for most of the config but had to fine tune
> it a bit manually in order to get it to stop backing up the stuff I wanted
> excluded)
>
> http://pastebin.com/VRce4ZMc
>
>
>
> On Mon, Jun 13, 2016 at 6:14 PM, Adam Goryachev <
> mailingli...@websitemanagers.com.au> wrote:
>
>> On 14/06/16 10:19, G Jones wrote:
>>
>> I have Backuppc running on a CentOS7 machine with CentOS 6.x and 7
>> clients. Initially, I had all of the machines using the same xfer settings
>> (rsync) by just using the default config.pl. What I noticed is that when
>> I run a single full backup of one host, all three hosts are backed up
>> instead of just one. Additionally, when the backup completes all three of
>> them have identical sizes. I'm excluding /dev, /proc, and /mnt on those
>> machines, but I also notice that even though I didn't explicitly call out
>> /home to be excluded, the backup grabs the folder /home but refuses to grab
>> any of the files or subdirectories contained within. I have just
>> created individual configs for the three machines I have even though
>> they're all doing the same thing. I wiped out the old backups but, once
>> again, when I kick off a full backup of one host it does a full on all
>> three of them.
>>
>> Anywhere in the config that I should be looking? I'll post up anything
>> needed, I just need to get this running properly.
>>
>> Yes, you should look in the logs and the configs.
>>
>> Oh right, in order for us to help you, we will need to look at your logs
>> and configs, so please include those when requesting assistance.
>> I'm not sure how you could manage to backup multiple hosts, but the
>> configs/logs will help answer that
>>
>> Regards,
>> Adam
>>
>>
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>>
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Re: [BackupPC-users] Copyright protection

[Rob Owens]

- Original Message -
> From: "Mauro Condarelli" 

> Hi,
> please note a this spawned from something Richard Alloway wrote:
>> If I can get approval to do any of this on work's dime (which I think I can 
>> do,
>> since contributing to Open Source projects is part of my job), I should be 
>> able
>> to get a little of 5:
>>
>> 5) Time
> As I read it this means Richard's employer will explicitly pay for 
> contributions
> to BackupPC.
> 
> My concern is said employer may, perhaps in a distant future, possibly after
> being sold to some Evil Empire, decide they still "own" those patches and
> prevent us from redistributing anything which includes them.
> This is the problem we should address (if it exists).
> 
> I do not want to open possibility for anyone to make BackupPC proprietary (I
> know what Rob depicts has happened in the past and will happen again), this
> should be explicitly forbidden in whatever solution we finally chose.
> 
> Initial question remains: "Should we be concerned"?
> This might be sheer paranoia, but I'm to ignorant in the subject to discern 
> it.
> If someone has a positive answer please elaborate.
> 

My "I'm not a lawyer" opinion is that if the code is GPL, then we really don't 
need anything more.  Contributions/patches must then be GPL.  The angry employer
scenario is a possibility I suppose.  Maybe each contributor must sign/swear 
that
the code is his to give away?  Then if an employer raises a stink, would the
issue be the contributor's problem and not ours?  Maybe, but I kind of doubt it.
It may be a waste of time to try to prepare for this scenario.  

The chances of an angry employer scenario are significantly reduced, in my 
opinion, if BackupPC remains a non-commercial project.  

-Rob

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Re: [BackupPC-users] Copyright protection

[Rob Owens]

- Original Message -
> From: "Mauro Condarelli" 

> Thanks Les,
> comments below.
> 
> Il 18/05/2016 18:31, Les Mikesell ha scritto:
>> On Wed, May 18, 2016 at 11:02 AM, Mauro Condarelli  wrote:
>>> Hi Everybody,
>>> it occurred to me there may be legal pitfalls (particularly in the States, 
>>> but
>>> not only) concerning "Intellectual Property" of any contribution.
>>>
>>> I know several organizations (e.g.: Eclipse) require a declaration from each
>>> contributor stating:
>>> 1) he is transferring Copyright of each and all patches to the Project.
>>> 2) no other party (i.e.: his employer) has any claim on his contributions.
>>> I know because I had to go into some loops to have some contributions 
>>> accepted.
>>>
>>> Should we be concerned?
>>> I know *noting* about USA Copyright laws (aside from the fact they're making
>>> many "attorneys" rich).
>>> Is there someone knowledgeable here on the list?
>>> Should we seek advice? (where? github? FSF?)
>>>
>>> We should fix this ASAP, before the coder base enlarges.
>>>
>>> Please give advice.
>>
>> Since the initial license is GPL v2, the only restriction is that any
>> changes/additions must also be GPL or compatible (include source and
>> not add additional restrictions).  In some cases projects add a
> I am not worried about that.
> I'm fine with GPL2+.
>> requirement to transfer ownership of contributions to the official
>> version so that someone would have the authority to change the license
>> on future versions if desired - but it may already be too late for
>> that.
> We do not want to change that and I'm glad none can take away freedom from 
> this
> project.
> I am worried about our ability to redistribute contributions.
> Please see the link David sent (http://oss-watch.ac.uk/resources/cla).
> 
> I think We need a CLA and we should require contributors to sign one.

As Les said, a CLA would give the project owner the ability to change the 
license 
in the future.  That includes the ability to change it to a proprietary license.
The GPL version of the code would still be available as GPL, but that same code
could be sold in a proprietary product at the will of the project owner.  All
future development by the project owner(s) could then be directed toward the 
proprietary version, thus leaving the GPL version to die (unless the community
continued to develop it).  

For this reason, a lot of people frown on CLA requirements.  Look up "Ubuntu 
CLA"
if you want to see what kind of trouble CLAs can cause. 

-Rob

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Re: [BackupPC-users] moving the pool disk to another computer -- file ownership

[Rob Owens]

- Original Message -
> From: "rowens" <row...@ptd.net>
> On Mon, Apr 25, 2016 at 05:21:38PM -0400, Christophe Gouinaud wrote:
>> Helo,
>> 
>> > Le 25 avr. 2016 à 16:28, Rob Owens <row...@ptd.net> a écrit :
>> > 
>> > I had an issue with the root filesystem of my backuppc server (system A) 
>> > which
>> > required a restore.  So I moved the pool disk to another computer (system 
>> > B),
>> > installed backuppc on that computer, booted system A off of a live CD, and
>> > prepared for a restore.
>> > 
>> > However, system B assigned a different UID to the backuppc user than 
>> > system A
>> > did, so all of the files in the backuppc pool (now attached to system B) 
>> > did
>> > not have the proper ownership.  As a result, backuppc would not start.  I 
>> > got
>> > the "test hardlink failed" message.
>> > 
>> > I considered changing the UID of the backuppc user (using the usermod 
>> > command)
>> > but the UID I needed to change it to was already in use.  So I did
>> > 'chown -R backuppc.backuppc /var/lib/backuppc'.  This took several hours, 
>> > as
>> > there were 59 million files (mostly hard links).  But it worked and I got 
>> > my
>> > restore done.  (Note:  I also chown'd my /etc/BackupPC files).
>> > 
>> > So I'm trying to figure out the best way to avoid this in the future.  Here
>> > are some ideas I had.  I'm looking for critiques and advice.
>> > 
>> 
>> In case of emergency, you can mount the pool with bindfs and the appropriate
>> uid.
>> 
> Thanks!  I didn't know about bindfs.  I will look into it.

I tested bindfs outside of backuppc and it looks like it'll do the job if I have
another emergency.  The command would look something like this:

bindfs --force-user backuppc --force-group backuppc --create-for-user 123 
--create-for-group 456 /mnt/backuppc_disk /var/lib/backuppc

This assumes the relocated pool disk is mounted at /mnt/backuppc_disk, and is 
owned by uid 123, gid 456, which are not assigned on system B.  

On my Funtoo system, the files I found which are owned by backuppc are:
/etc/BackupPC
/var/lib/backuppc
/var/log/BackupPC

The /etc and /var/log files can easily be chown'd, so bindfs would not be
necessary there.

Thanks again for the bindfs tip.

-Rob

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Re: [BackupPC-users] moving the pool disk to another computer -- file ownership

[Rob Owens]

On Mon, Apr 25, 2016 at 05:21:38PM -0400, Christophe Gouinaud wrote:
> Helo,
> 
> > Le 25 avr. 2016 à 16:28, Rob Owens <row...@ptd.net> a écrit :
> > 
> > I had an issue with the root filesystem of my backuppc server (system A) 
> > which 
> > required a restore.  So I moved the pool disk to another computer (system 
> > B), 
> > installed backuppc on that computer, booted system A off of a live CD, and 
> > prepared for a restore.
> > 
> > However, system B assigned a different UID to the backuppc user than system 
> > A
> > did, so all of the files in the backuppc pool (now attached to system B) 
> > did 
> > not have the proper ownership.  As a result, backuppc would not start.  I 
> > got
> > the "test hardlink failed" message.
> > 
> > I considered changing the UID of the backuppc user (using the usermod 
> > command)
> > but the UID I needed to change it to was already in use.  So I did 
> > 'chown -R backuppc.backuppc /var/lib/backuppc'.  This took several hours, 
> > as 
> > there were 59 million files (mostly hard links).  But it worked and I got my
> > restore done.  (Note:  I also chown'd my /etc/BackupPC files).
> > 
> > So I'm trying to figure out the best way to avoid this in the future.  Here
> > are some ideas I had.  I'm looking for critiques and advice.
> > 
> 
> In case of emergency, you can mount the pool with bindfs and the appropriate 
> uid.
> 
Thanks!  I didn't know about bindfs.  I will look into it.

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[BackupPC-users] moving the pool disk to another computer -- file ownership

[Rob Owens]

I had an issue with the root filesystem of my backuppc server (system A) which 
required a restore.  So I moved the pool disk to another computer (system B), 
installed backuppc on that computer, booted system A off of a live CD, and 
prepared for a restore.

However, system B assigned a different UID to the backuppc user than system A
did, so all of the files in the backuppc pool (now attached to system B) did 
not have the proper ownership.  As a result, backuppc would not start.  I got
the "test hardlink failed" message.

I considered changing the UID of the backuppc user (using the usermod command)
but the UID I needed to change it to was already in use.  So I did 
'chown -R backuppc.backuppc /var/lib/backuppc'.  This took several hours, as 
there were 59 million files (mostly hard links).  But it worked and I got my
restore done.  (Note:  I also chown'd my /etc/BackupPC files).

So I'm trying to figure out the best way to avoid this in the future.  Here
are some ideas I had.  I'm looking for critiques and advice.

1)  Choose a UID that hopefully won't be used on any future system I may 
install backuppc onto.  Maybe something in the 300-399 range.  usermod my
backuppc user on all systems to use that UID, and chown my pool today while 
I'm not in a hurry.  

2)  Try to convince Craig Barratt and all major distros to standardize on
a particular UID and GID for the backuppc user and group.  This is harder
for me to accomplish than #1, but would virtually guarantee that my pool 
disk could be dropped into any other server, regardless of distro.

3)  Run backuppc as root in an emergency.  I actually tried this, but the
web interface complained that it was not being run as the same user that
owned the pool files.  And apache refused to run as root, so I was unable
to make this work.

4)  Temporarily usermod my backuppc user to whatever UID is required to get 
things to work during an emergency, even if it does conflict with another 
user account.  Usermod has the '--non-unique' option which would allow this.  
What negative consequences might this have?

5)  Convince backuppc to disregard the "test hardlink failed", and start
anyway.  I suspect I would still run into file permission problems, though.

By the way, both systems in question are running Funtoo.  But my goal 
would be to make this work on any system.  In a disaster situation, I 
may need to install whatever distro I have easy access to, or even use a 
live cd or live usb.

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[BackupPC-users] calculating changes to filesystem over time

[Rob Owens]

I am trying to set up LVM snapshots and I need to figure out how large of a 
space to allocate for the snapshot.  Is there a tool I can use to monitor the 
changes to my filesystem over some period of time?  In other words, I want to 
know how much changed data there is over a day, a week, etc.

This would be helpful not only for calculating LVM snapshot space, but also 
storage pool space.

Thanks for any advice you can provide.

-Rob

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Re: [BackupPC-users] BackupPC 3.2.1, changing Xfer method from rsync to rsyncd makes browsing new backups impossible

[Rob Owens]

- Original Message -
 From: johan bostrom johan.bost...@insitu.se
 
 Hi,
 
 we have a couple of Ubuntu 12.04 LTS and Debian 7.1 servers being
 backed up by BackupPC 3.2.1 running on Ubuntu 12.04 LTS.
 
 The backups were taking a long time to finish, even after the initial
 one or two full backups.
 Part of this is due to old 10/100 Mbit switches that are being
 replaced.
 But after searching the internets for a while, I came to the
 conclusion that it is an issue with running rsync over ssh,
 in combination with the type of data we're backing up.
 
 So I changed the Xfer method to running rsyncd on the clients and saw
 significant speed improvments.
 Since rsyncd uses modules, whose names can not contain forward
 slashes, the RsyncShareName array had to be changed.
 /bin was changed to bin.
 /etc - etc
 and so on.
 
 This had the unfortunate effect of disabling the ability of browsing,
 using the web interface, of any backup that had been performed with
 the rsyncd method.
 The files are there in the file directory, they just aren't
 accessible when browsing client backups.
 I'm just presented with the message:
 Error: Can't browse bad directory name /
 
 So how can I fix this? Should I just wait for the old backups to be
 trashed?
 Delete the client from BackupPC, then add it again after purging
 everything associated with the old client?
 
 Obviously I'd like there to be an easy way out of this quagmire, the
 delete client from backuppc solution is obviously the last option
 here.
 
You could put the config back the way it was, then disable backups for this 
host.  Then create a new host, with an alias to the original host, and 
configure that to use rsyncd.  You'd end up with two hosts entries for each 
physical server, but after a period of time you can delete the old one (once 
you no longer need its backups to be available).

-Rob

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Re: [BackupPC-users] An host for restoration only

[Rob Owens]

- Original Message -
 From: Jimmy Thrasibule thrasibule.ji...@gmail.com
 
 
  The easiest way is probably to set the option 'BackupsDisable' to 1
  for your restoration only host:
  http://backuppc.sourceforge.net/faq/BackupPC.html#_conf_backupsdisable_
 
 The problem with BackupsDisable is that if the host has no backup
 yet,
 BackupPC will still try to backup the host even if it is disabled...
 :(
 
You could just allow it to back it up, but specify a directory that has a
single file in it (or maybe even no files would work).  You don't need to 
backup the entire / filesystem.

-Rob

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Re: [BackupPC-users] How to backup Exchange in BackupPC - step by step

[Rob Owens]

- Original Message -
 From: Prem squirr...@yahoo.com
 
 Dear All,
 
 Could anyone kindly share the step by step to set up the backup of
 Exchange 2008 in BackupPC?
 
Does Exmerge still exist?  I used to use that to export Exchange
mailboxes to *.pst files, and then I backed them up with Backuppc.
It was a long time ago, so I don't remember many of the specifics.

-Rob

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Re: [BackupPC-users] How to backup Exchange in BackupPC - step by step

[Rob Owens]

- Original Message -
 From: Rob Owens row...@ptd.net
 - Original Message -
  From: Prem squirr...@yahoo.com
  
  Dear All,
  
  Could anyone kindly share the step by step to set up the backup of
  Exchange 2008 in BackupPC?
  
 Does Exmerge still exist?  I used to use that to export Exchange
 mailboxes to *.pst files, and then I backed them up with Backuppc.
 It was a long time ago, so I don't remember many of the specifics.
 
Apparently it's been replaced with Export-Mailbox.  See this page:
https://www.simple-talk.com/sysadmin/exchange/goodbye-exchange-exmerge,-hello-export-mailbox/

-Rob

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Re: [BackupPC-users] Documentation error

[Rob Owens]

On Sun, Mar 18, 2012 at 04:25:48PM +0100, Till Hofmann wrote:
 On Sun, Mar 18, 2012 at 12:00 PM, Justin Finkelstein 
 jus...@redwiredesign.com wrote:
 
  **
  Hi guys
 
  I've found what I believe to be a minor typo in the SSH FAQ entry. The
  sudoers line given by Martin Hansen:
 
  backuppc  ALL=NOPASSWD: /usr/bin/rsync --server --sender *
 
  Doesn't work as shown on CentOS 6; to make it work, remove the space
  before the asterisk so it becomes:
 
  backuppc  ALL=NOPASSWD: /usr/bin/rsync --server --sender*
 
  Could we get a consensus on which works for different platforms? I'd like
  to see the FAQ updated if this is true for other OSes.
 
  All the best,
 
  Justin
 
 
  backuppc  ALL=NOPASSWD: /usr/bin/rsync --server --sender *
 works without any flaws on Arch Linux (as client).
 but I guess the other command should work too since * matches  *

It works on my Debian systems as well, with the space.

-Rob

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Re: [BackupPC-users] Minimal cygwin install?

[Rob Owens]

On Thu, Oct 06, 2011 at 12:53:24PM +0700, hans...@gmail.com wrote:
 On Wed, Oct 5, 2011 at 5:01 AM, Les Mikesell lesmikes...@gmail.com wrote:
  I've always just done a full install of Cygwin where I needed it, but
  now I'm looking for an installer package that would be easier for
  others to use.  Is there anything like cwrsync that also includes
  sshd?
 
 Les,
 
 I've found with recent version of Cygwin, there aren't any registry or
 other issues preventing a fully portable (as in runs from any
 path/drive letter/external device) non-installation setup - IOW, get
 it running on one machine and then distribute via a zip file or
 however you like.
 
I can confirm that Cygwin (at least the version I installed sometime in
the last 2 years) can be installed to and run from a non-system,
user-owned directory without needing write access to the Windows
registry.  I never tried running an ssh daemon in that configuration,
though.

-Rob

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Re: [BackupPC-users] I need help and will compensate

[Rob Owens]

Chris, where are you located?  

I've done several BackupPC installs for business and home users.  Let
me know if you'd like my help.  Maybe I can give you a couple tips, or
maybe I can do it all for you.

-Rob

On Tue, May 10, 2011 at 11:01:18PM -0500, Chris Baker wrote:
 It is extremely busy right now at the office. I am attempting to set up a
 new BackupPC server. It's an older Dell Dimension computer with 1 GB of
 memory and a 1 TB hard drive.
 
 Right now, I have the latest Ubuntu with BackupPC installed. I can't get the
 web interface going.
 
 If anyone can help me set this set up, I would appreciate it. At this point,
 I am willing to pay for it. If you think I should use a different
 distribution, I am willing to get a different one.
 
 Thank you.
 
 Chris Baker

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Re: [BackupPC-users] Filesystem separation

[Rob Owens]

On Wed, Jan 26, 2011 at 01:40:19AM +, John Goerzen wrote:
 Rob Owens rowens at ptd.net writes:
 
  One reason I always specify the --one-file-system argument for rsync is
  that prevents me from accidentally backing up an NFS share.  Since I use
  BackupPC for all the computers on my LAN, the data in the NFS share gets
  backed up when I back up the server that is hosting/exporting the share.
  
  Same thing goes for the occasional fuse share.  In particular, I've
  started using encfs and I certainly wouldn't want a copy of my encrypted
  data to get backed up unencrypted, just because BackupPC happened to be
  running when I had an encrypted volume mounted.
 
 That is a reasonable point, and a good idea.  I'm used to doing that with 
 other
 backup software as well.  But I'm still not understanding why the manual says 
 a
 *restore* is easier.
 
I don't know the answer, but it might have to do with preventing a
restore operation from attempting to restore over NFS, or to any other
share which might be mounted read-only.  

Maybe the author could speak up...

-Rob

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Re: [BackupPC-users] Filesystem separation

[Rob Owens]

On Tue, Jan 25, 2011 at 06:17:12PM -0600, John Goerzen wrote:
 Hi,
 
 In reading the manual for parameters such as the tar, rsync, etc. share, 
 I see:
 
 Alternatively, rather than backup all the file systems as a single 
 share (/), it is easier to restore a single file system if you backup 
 each file system separately.
 
 Can anyone tell me why this is easier?  Can't one select the subset of 
 the backup to restore out of a whole filesystem backup anyhow?
 
One reason I always specify the --one-file-system argument for rsync is
that prevents me from accidentally backing up an NFS share.  Since I use
BackupPC for all the computers on my LAN, the data in the NFS share gets
backed up when I back up the server that is hosting/exporting the share.

Same thing goes for the occasional fuse share.  In particular, I've
started using encfs and I certainly wouldn't want a copy of my encrypted
data to get backed up unencrypted, just because BackupPC happened to be
running when I had an encrypted volume mounted.

-Rob

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[BackupPC-users] most recent version packaged for CentOS 5

[Rob Owens]

What is the latest packaged version of BackupPC available for CentOS 5?
I see this:
http://dev.centos.org/centos/5/testing/i386/RPMS/

Are any of you aware of something more recent?

Thanks

-Rob

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Re: [BackupPC-users] Disaster Recovery Configuration (Having a Hot Spare BackupPC server)

[Rob Owens]

On Wed, Jan 12, 2011 at 03:25:59PM -0500, Ryan Blake wrote:
 Hello everyone,
 
 I have been looking around for a solution to backing up the BackupPC server 
 to a hot spare BackupPC server but haven't really found anything concrete.
 
 What I'm basically trying to do is this:
 
 I am currently using dd to make an exact duplicate of the server's 
 configuration on another machine (that is also exactly the same).  Once this 
 finishes, I plan to put the drives into the spare computer and place it 
 offsite at another location that has a direct fiber connection from the main 
 site where the original BackupPC server is.
 
 What I'd like to do is change the hostname, IP, and have the other server 
 running without having the actual BackupPC process running but installed.  
 Then, using rsync (or some other recommended method), I would like to have 
 the data copied over from the main server to the hot spare that is sitting 
 at the alternate location without BackupPC running.  From my understanding 
 and logic, if I do this, I should be able to easily start up BackupPC if a 
 disaster did happen and be able to access the files just as if I was using 
 that machine to do backups on.  So, I would like to have rsync* mirror the 
 main server to the hot spare so if files are deleted off the main server, 
 the process would delete the files automatically during a nightly run.
 
 So, my question is: What is the best solution to do this?  I am assuming 
 rsync since I've seen quite a few posts about it (and to be sure to use -H).  
 However, I was hoping someone would have an entire command I would need to 
 run and the best way to go about doing this since the backup server will be 
 assumingly still building backups overnight.  I also don't want to be 
 retransferring unchanged files, only the ones that have changed (just like 
 BackupPC does with the clients now).  I've also heard someone mention 
 storebackup but I'm not exactly convinced it's any better than rsync.
 
Did anybody ever implement a backuppcfs using fuse?  This would allow
us to mount the backuppc pool filesystem, locally on the spare backuppc
server.  Then the spare could do daily backups of those mount points.

This would solve the rsync/hardlink problem.  It would be a little
easier on the hosts than simply running two backuppc servers that backup
the hosts -- hosts would only get backed up once a day instead of twice.

-Rob

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Re: [BackupPC-users] Disaster Recovery Configuration (Having a Hot Spare BackupPC server)

[Rob Owens]

On Wed, Jan 12, 2011 at 04:04:37PM -0500, Rob Owens wrote:
 On Wed, Jan 12, 2011 at 03:25:59PM -0500, Ryan Blake wrote:
  Hello everyone,
  
  I have been looking around for a solution to backing up the BackupPC server 
  to a hot spare BackupPC server but haven't really found anything concrete.
  
  What I'm basically trying to do is this:
  
  I am currently using dd to make an exact duplicate of the server's 
  configuration on another machine (that is also exactly the same).  Once 
  this finishes, I plan to put the drives into the spare computer and place 
  it offsite at another location that has a direct fiber connection from the 
  main site where the original BackupPC server is.
  
  What I'd like to do is change the hostname, IP, and have the other server 
  running without having the actual BackupPC process running but installed. 
   Then, using rsync (or some other recommended method), I would like to have 
  the data copied over from the main server to the hot spare that is 
  sitting at the alternate location without BackupPC running.  From my 
  understanding and logic, if I do this, I should be able to easily start up 
  BackupPC if a disaster did happen and be able to access the files just as 
  if I was using that machine to do backups on.  So, I would like to have 
  rsync* mirror the main server to the hot spare so if files are deleted 
  off the main server, the process would delete the files automatically 
  during a nightly run.
  
  So, my question is: What is the best solution to do this?  I am assuming 
  rsync since I've seen quite a few posts about it (and to be sure to use 
  -H).  However, I was hoping someone would have an entire command I would 
  need to run and the best way to go about doing this since the backup server 
  will be assumingly still building backups overnight.  I also don't want to 
  be retransferring unchanged files, only the ones that have changed (just 
  like BackupPC does with the clients now).  I've also heard someone mention 
  storebackup but I'm not exactly convinced it's any better than rsync.
  
 Did anybody ever implement a backuppcfs using fuse?  This would allow
 us to mount the backuppc pool filesystem, locally on the spare backuppc
 server.  Then the spare could do daily backups of those mount points.
 
I should clarify that the mount points would be of the most recent daily
backup.

 This would solve the rsync/hardlink problem.  It would be a little
 easier on the hosts than simply running two backuppc servers that backup
 the hosts -- hosts would only get backed up once a day instead of twice.
 
 -Rob
 
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Re: [BackupPC-users] Best way to backup on remote dynamic IPs

[Rob Owens]

On Fri, Oct 15, 2010 at 02:57:13PM +0200, Boniforti Flavio wrote:
 Hello there.
 
 I'm struggling to find a definitive solution to my troubles: I'm backing
 up servers which are on remote DSL connections. Just a few of them have
 fixed IPs, thus I had to use DDNS services for the other ones. Because
 of the propagation delay when an IP changes (and the related DDNS entry
 too), I wanted to get to a better way: any clues/suggestions?
 
I use a setup similar to yours and I've never had any problems.  I use
www.dyndns.com and ddclient software (all my boxes are Linux).

-Rob

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Re: [BackupPC-users] [OT] RE: Best way to backup on remote dynamic IPs

[Rob Owens]

On Fri, Oct 15, 2010 at 04:58:50PM +0200, Boniforti Flavio wrote:
 Hello Rob and thanks for your reply.
 
  I use a setup similar to yours and I've never had any 
  problems.  I use www.dyndns.com and ddclient software (all my 
  boxes are Linux).
 
 I've 99% Windows 2003 Servers.
 I'm used to configure DDNS on DSL routers instead of computers.
 
 With one machine running ddclient, I don't have *periodic* updates
 (which leads to get email notifications about your account is about to
 expire): how do you treat this issue?
 
I always found that the use= line that Debian sets up didn't work for
me.  I always use use=web.  Here is my ddclient.conf file:

pid=/var/run/ddclient.pid
protocol=dyndns2
use=web, web=checkip.dyndns.org/, web-skip='IP Address' # found after IP
Address
server=members.dyndns.org
login=mylogin
password='mypassword'
mydns.dyndns.com

I never get your account is about to expire messages, so everything
seems to be working as it should.

-Rob

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Re: [BackupPC-users] New BackupPC server on Debian: which version?

[Rob Owens]

On Thu, Aug 19, 2010 at 11:59:55AM +0200, Boniforti Flavio wrote:
 Hy Rob.
 
  BackupPC has only a few dependencies, and this makes it 
  fairly easy to install the Debian testing version in Debian stable.
 
 [cut]
 
 Thanks for your reply.
 What about the future versions of BackupPC? Who know if they'll still
 get backported to run on Lenny?
 This is actually my only concern.
 
I don't think there's any guarantee about that.  Currently, BackupPC is
not backported to Lenny.  However, the version in testing (Squeeze)
works fine on Lenny.  Also remember that Squeeze has just been frozen,
so it'll probably be released as stable in 9 months or so (based on past
freeze/release timeframes).

 Or would there be an other Linux distro which could be used for a
 stable, still upgradable BackupPC server?
 
You might want to consider learning how to do backports yourself, if
this is really important to you.  For some packages this is very
straightforward to do on Debian.  For other packages it's a lot of work.
I have very limited experience with this, but in general I think the
fewer dependencies, the easier it is to backport.  BackupPC has several
dependencies, but fairly few which require a specific version of a
dependency package.

-Rob

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Re: [BackupPC-users] New BackupPC server on Debian: which version?

[Rob Owens]

On Wed, Aug 18, 2010 at 08:46:45AM +0200, Boniforti Flavio wrote:
 Hello all.
 
 As from the subject line, which Debian version do you suggest to set up
 for using BackupPC?
 My actual server is on testing, would not want to stick to a version
 which is freezed because I'd miss the future releases of BackupPC.
 
BackupPC has only a few dependencies, and this makes it fairly easy to
install the Debian testing version in Debian stable.

$ apt-cache policy backuppc
backuppc:
  Installed: 3.1.0-4lenny3
  Candidate: 3.1.0-4lenny3
  Version table:
 3.1.0-9 0
190 http://ftp.us.debian.org squeeze/main Packages
 *** 3.1.0-4lenny3 0
990 http://ftp.us.debian.org lenny/main Packages
100 /var/lib/dpkg/status


$ sudo aptitude install backuppc/testing

wants to install libwbclient0, samba-common, and smbclient from the
backports.org repo onto my Lenny system.

-Rob

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Re: [BackupPC-users] Restrict backup to not run when laptop is on specific subnet?

[Rob Owens]

On Thu, Aug 12, 2010 at 07:30:55PM -0400, Marcelino Mata wrote:
 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA256
 
 
 
 I have the case where a laptop user with 150GB of data could be on one
 of two locations which are connected by router.  Our network guys do not
 want a full backup to run for the user when he's on the opposite end of
 router to the backuppc computer.  The ping latency between the locations
 is very short (typically under .5ms) so I can't use ping (PingMaxMsec)
 as method to avoid this.
 
 Is there another way I could configure backuppc so it only backs up the
 computer when it's on specific subnet?
 
 The subnet are as follows:
 
 Backuppc computer : 10.2.X.X
 Opposite location : 10.3.x.x
 
 The simplest solution is to restrict backup computers to the backuppc
 subnet.
 
 Maybe create firewall rule on backuppc to block traffic from 10.3.x.x?
 
 Running backuppc 3.1.0-9ubuntu1 under Ubuntu 10.04.
 
Maybe you can solve it with DNS.  Have your DNS server assign a
different hostname depending on what subnet the laptop is on (I assume
you have separate zone files for the two subnets).  Then tell BackupPC
to back up only the hostname that belongs to the 10.2.x.x subnet.

-Rob

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Re: [BackupPC-users] SMB limitations?

[Rob Owens]

On Wed, Jul 07, 2010 at 09:30:52AM -0500, Jim Kyle wrote:
 On Wednesday, July 7, 2010, at 8:16:13 AM, James Wells wrote:
 
  I'd suspect permissions - are the new files getting correct permissions
  for the account that backuppc is using?
 
 The backuppc user is an Administrator on all of the VMs, so ought to have
 full permissions on them. When I try to test using smbclient, I get the
 access denied error message no matter what user I try. I know that
 Windows from XP on won't let an external login with blank password, but my
 normal administrator accounts are all passworded, and they're denied access
 also.
 
It's been a while since I ran a Windows system, but I think it's
possible for the Administrator to be denied access to files.  I think
your backuppc user needs to be a member of the backup or system
group (can't remember which).

-Rob

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Re: [BackupPC-users] Outsourcing backup

[Rob Owens]

On Tue, May 04, 2010 at 11:08:51AM -0500, Les Mikesell wrote:
 On 5/4/2010 9:38 AM, Inno wrote:
  It's a very good idea. But with this solution I am forced to do a single 
  full then incrementals. And I'm not sure the speed of upload will be 
  sufficient.
 
 Rsync full backups still only transfer the differences from the last 
 full.  They run slower than incrementals because they do a block 
 checksum comparison even on unchanged files, but don't take a lot more 
 bandwidth.  And since the previous full is the base for comparison, you 
 don't  want to go too long between fulls.  If you backup both sites from 
snip

For the machines being backed up over the internet, I'd recommend
setting IncrLevels to 1, 2, 3, 4, 5, 6 in order to minimize your
bandwidth usage.

I have used the setup Les describes, with IncrLevels as stated above,
successfully in 2 scenarios.  One was a business that had an office in
the USA and the UK, and one is in use at my home and my parents' home.

-Rob

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Re: [BackupPC-users] Best Linux base

[Rob Owens]

On Thu, Apr 29, 2010 at 12:42:22PM -0700, Eddie Gonzales wrote:
 My issues were mainly do to my lack of linux knowledge but now it's
 getting the exim mail service on my debian to send me emails. I know I
 will rebuild if I put this in production so wanted to know If I should
 change bases if I do to make things easier to get all working.
 
I run BackupPC on Debian Lenny.  What specifically is your problem?  Are
you trying to get mail working only on the local machine, or are you
sending it over the internet?  Are you using a smarthost (for instance,
sending the mail through your ISP's mail servers), or are you running
your own mail server?

-Rob

 
 
 On Apr 29, 2010, at 12:38 PM, Les Mikesell lesmikes...@gmail.com
 wrote:
 
  On 4/29/2010 2:18 PM, Eddie Gonzales wrote:
 
  I been testing backuppc on a Debian distro and had some issues but
  wanted to see if there is a base that has the least problems with
  installing backuppc..
 
  What kind of issues?  Installing on Centos 5.x from the EPEL yum
  repository should come up working, but I'm sure others here are using
  debian or ubuntu.
 
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Re: [BackupPC-users] request for comment

[Rob Owens]

On Mon, Oct 19, 2009 at 04:51:08PM -0700, Ryan Jewell wrote:
 I am trying to figure out a set of scripts to get a reliable offsite 
 backup of a client's backuppc (300GB pool). I've read a lot of the older 
 posts and I'm aware of some of the issues.
 
 At the moment we have a backuppc install running at an office. We have a 
 second backuppc offsite. This works pretty well but there are a lot of 
 problems backing up the various clients because they aren't always 
 online late at night. So this is a wild attempt to get a fast rsync 

Are you aware of the BlackoutPeriods, BlackoutBadPingLimit, and BlackoutGoodCnt 
settings?  They are designed to ensure that machines get backed up, even
if they are not left on overnight.

-Rob

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Re: [BackupPC-users] PST files -- accelerated retiring?

[Rob Owens]

On Wed, Jul 08, 2009 at 09:34:42AM -0400, Ken D'Ambrosio wrote:
 Hi, all.  Not having used BackupPC for about five years, I was wondering,
 first and foremost, if there had come into existence a mechanism for
 backing up open PST files.  Secondly, since PST files are
 disproportionately large when it comes to incrementals, is there any way
 to delete them at an accelerated rate?
 
I've used a program called exmerge, running on the exchange server, to create 
PST files from the store without shutting down the server.  Maybe that could 
work for you?  Exmerge
is downloadable from Microsoft's website.  Just run it on the server and have 
BackupPC back up the PST files it creates.

-Rob

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Re: [BackupPC-users] backuppc

[Rob Owens]

On Mon, May 18, 2009 at 07:21:21AM -0500, Les Mikesell wrote:
 Richard de Rivaz wrote:
  Hi Les
  
  You suggest connecting as the backuppc user on the server to the root on 
  the target and I am slightly baffled as to how to do this on Ubuntu 9.04. 
  'backuppc' does not appear on the list of users so I cannot log in as 
  backuppc, although it will not allow me to add a user backuppc as it says 
  there is one already. I wonder how you would suggest I test the connection 
  as I have the same problem as soume86.
  
  Regards Richard
 
 Try
 sudo su -
   to become root

sudo -i also works.

-Rob

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Re: [BackupPC-users] Change XFER settings for a particular client

[Rob Owens]

Dave,

If you're using rsync or rsyncd as a transfer, you can add --one-file-system to 
the rsync options.  I put that in my
default config so it applies to all hosts.

-Rob

On Sat, May 02, 2009 at 10:30:06PM -0400, David Hopkins wrote:
 Figures ... the moment I send a query, I notice that at the top left
 in small blue print is the edit config option for the host.
 
 Sorry for the silly post.
 
 Sincerely,
 Dave Hopkins
 
 On Sat, May 2, 2009 at 10:24 PM, David Hopkins dahopkins...@gmail.com wrote:
  I have added some new NFS-mounted directories to some of my systems
  (including the Backuppc system) and I want to specifically exclude
  those new directories since they will be backed up when the system
  they reside on is backed up.  Is there a way to do so through the GUI?
   I know I set up the hosts originally and added specific exclusions as
  I added them, but I can't seem to find the correct menu now.  Or do I
  have to edit the settings located in /etc/BackupPc/pc directly?  If
  so, why doesn't the file exclusions I have set appear in the backuppc
  system's .pl file when they appear in all the other per host files?
 
  Sincerely,
  Dave Hopkins
 
 
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Re: [BackupPC-users] backuppc 3.1.0-4/debian: rrd graph missing

[Rob Owens]

On Sat, Apr 25, 2009 at 06:09:11AM +0200, Jonas Meurer wrote:
 On 24/04/2009 Rob Owens wrote:
  I'm not sure if it's a permissions issue, but that's all I could think of
  to check.  Let me know if you want any other specific information about my
  installation.
 
 Hey again,
 
 I just discovered, that www-data, the user that runs apache2, doesn't
 have read permissions to /var/lib/backuppc/log/pool.rrd at all, and I
 guess that this is required at least. I changed the permissions, but
 that didn't help either.
 
 Rob, can you check which permissions /var/lib/backuppc,
 /var/lib/backuppc/log and /varl/lib/backuppc/log/pool.rrd do have at
 your system? At my system it's:
 
 # ls -dl /var/lib/backuppc /var/lib/backuppc/log 
 /var/lib/backuppc/log/pool.rrd 
 drwxr-x--- 8 backuppc backuppc 4.0K Apr 25 06:05 /var/lib/backuppc
 drwxr-x--- 2 backuppc backuppc 4.0K Apr 25 06:00 /var/lib/backuppc/log
 -rw-r- 1 backuppc backuppc  12K Apr 24 22:02 
 /var/lib/backuppc/log/pool.rrd
 

My system is the same as yours:

drwxr-x--- 14 backuppc backuppc 4096  2009-02-26 13:26 /var/lib/backuppc
drwxr-x---  2 backuppc backuppc 4096  2009-04-27 09:00 /var/lib/backuppc/log
-rw-r-  1 backuppc backuppc 11784 2009-04-27 01:06 
/var/lib/backuppc/log/pool.rrd

I wonder what else could be causing your problems.  Do those tables need a
special browser plugin in order to display?  Like java or something?

-Rob

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Re: [BackupPC-users] backuppc 3.1.0-4/debian: rrd graph missing

[Rob Owens]

I'm using BackupPC on Debian Lenny as well.  My graphs work fine.  I'm
using the Debian packaged version, 3.1.0-4

My entire pool is owned by backuppc.backuppc
Everything in /etc/backuppc is owned by backuppc.www-data except:
  apache.conf, htpasswd, htgroup, which are owned by backuppc.root

I'm not sure if it's a permissions issue, but that's all I could think of
to check.  Let me know if you want any other specific information about my
installation.

-Rob

On Fri, Apr 24, 2009 at 03:23:40AM +0200, Jonas Meurer wrote:
 Hello,
 
 I use backuppc 3.1.0-4 on a debian/lenny system to backup four remote
 hosts. According to changelog and source, some graph with information
 about the pool size should be displayed in the webinterface.
 Unfortunately, this is not the case.
 
 rrdtool (1.3.1-4) is installed and the rrd-file at
 /var/lib/backuppc/log/pool.rrd seems to be updated regularly as well.
 
 I even checked the command to create the graph image, which is used at
 /usr/share/backuppc/lib/BackupPC/CGI/GeneralInfo.pm, and it seems to
 work:
 
 $ /usr/bin/rrdtool graph - --imgformat=PNG --start=end-7w --end=-300 
 --title=BackupPC Pool Size (7 weeks) --base=1000 --height=100 --width=600 
 --alt-autoscale-max --lower-limit=0 --vertical-label= --slope-mode --font 
 TITLE:10: --font AXIS:8: --font LEGEND:8: --font UNIT:8: -c BACK#FF 
 DEF:ao=/var/lib/backuppc/log/pool.rrd:ckb:AVERAGE CDEF:a=ao,1024,* 
 AREA:a#95B8DB:CPool in bytes  GPRINT:a:LAST:Current\\:%8.2lf %s 
 GPRINT:a:AVERAGE:Average\\:%8.2lf %s GPRINT:a:MAX:Maximum\\:%8.2lf %s\\n 
  graph.png
 (process:14825): Pango-CRITICAL **: pango_context_load_font: assertion 
 `pango_font_description_get_family (desc) != NULL' failed
 
 (process:14825): Pango-CRITICAL **: pango_context_load_font: assertion 
 `pango_font_description_get_family (desc) != NULL' failed
 $ file graph.png 
 graph.png: PNG image, 687 x 180, 8-bit/color RGBA, non-interlaced
 
 So I wonder why the image doesn't occur in the webinterface. Does
 anybody have similar issues?
 
 greetings,
  jonas
 
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Re: [BackupPC-users] Harmless button when trying to start backups using links browser

[Rob Owens]

http://www.mail-archive.com/backuppc-users@lists.sourceforge.net/msg06412.html

NX does have many uses, as Les suggested.  This might be a good time to try it 
out.

If you have an ssh server running on the BackupPC machine, you can use port 
forwarding as somebody else suggested:

ssh -L 8080:localhost:80 u...@backuppcserver

This will log you in as user on backuppcserver.  As long as that session is 
open, your local port 8080 will be forwarded to port 80 on
backuppcserver.  So in your web browser, go to this address:

http://localhost:8080/backuppc

This will let you use a heavy graphical web browser locally, while using 
minimal bandwidth. 

-Rob

On Wed, Apr 22, 2009 at 07:39:38PM +, John Rouillard wrote:
 Hi all:
 
 I just installed backuppc 3.2.0beta0 (but this happens with 3.1.0 as
 well) and I browsed to a host summary page and attempted to start a
 backup using the links text browser.
 
 However links is showing Harmless Button as the text for all three:
 
   Start Incr Backup
   Start Full Backup
   Stop/Dequeue Backup
 
 buttons. Looking at the source I see that the buttons are only valid
 when javascript is enabled and don't seem to work as regular form
 buttons. It looks like the value is set only if a button is clicked
 and javascript is available to set the action value.  Kind of makes it
 difficult to use when working from a text mode browser or other
 non-javascript enabled device (like some handheld phones).
 
 Does anybody have a fix to let it be used in a text mode browser or a
 browser w/o javascript?
 
 Would making the three buttons read something like:
 
   INPUT TYPE=submit NAME=button VALUE=Start Incr Backup
   INPUT TYPE=submit NAME=button VALUE=Start Full Backup
   INPUT TYPE=submit NAME=button VALUE=Stop/Dequeue Backup
 
 with support in the cgi for detecting ?button=Start%20Incr%20Backup
 with no action or a blank action work?
 
 For those who are wondering, I am remoted into the system and the vpn
 isn't working at the moment so I can't use the browser on my laptop
 nor can I send back X or anything to use a graphical browser.
 
 Well guess it's time to drag out my BackupPC_serverMesg dictionary
 to fire up the backup 8-).
 
 Thanks for any ideas.
 
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Re: [BackupPC-users] How to simply sync and not do full/incremental backups?

[Rob Owens]

On Fri, Apr 10, 2009 at 02:30:56PM +0200, Boniforti Flavio wrote:
 [cut]
 
  You need regular full backups as a means to *cut down* the 
  traffic. Search the archives for countless explanations of 
  why this is so. There's also an incorrect explanation in the 
  Wiki which I'll correct once I get around to it.
 
 So you are telling me that *in fact* there is just ONE full backup being
 done (the very first time), right?
 Well, what about the full backups being made every $Conf{FullPeriod}
 = 6.97;? What is being rsynced in that case?
 
The terms full and incremental lose their meaning a little bit when using 
rsync or rsyncd.  A full when using any other method does mean that it
re-transfers every file.  For rsync and rsyncd, though, it does not mean that.

-Rob

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Re: [BackupPC-users] vmware/virtuabox/etc.?

[Rob Owens]

On Wed, Apr 08, 2009 at 10:55:29AM -0500, Les Mikesell wrote:
 Thomas Karcher wrote:
 
  I'm looking for something that can be fired up easily on a
  windows/mac 
  without much concern for its physical hardware, so I don't think Xen
  is 
  a good fit.  I do have a dual-boot laptop - but it spends much of its 
  time in the same building as the data being backed up and I'd like a 
  plan that only needs the offsite disk and perhaps an image on a CD or 
  DVD that is likely to run anywhere.
  
  It doesn't matter which VM technology you choose - the network block
  device is the main idea.
  
  But perhaps I miss the point: You want to run a desaster recovery
  backuppc instance, right?
 
 I don't want to maintain a disaster recovery instance or require it to 
 exist in any particular place - I want to be able to spin up a virtual 
 machine on any available hardware that can access my spare disk copy via 
 a USB adapter and be restoring files in a few minutes.
 
   You will have to do this in a *nix
  environment, since you need to read your backuppc repository filesystem
  with hard links. Whether you do that in a VM or on a physical machine
  doesn't matter I guess. So you have two tasks: Make such a desaster
  recovery system running, and get your last working backuppc repository
  to it. If you have a physical machine, it's a matter of connecting and
  mounting.
 
 I have a physical machine in the form of a dual-boot laptop, but it is 
 the one I use daily in the same building as the data being backed up, so 
 it's probably not a good idea to expect it to survive a disaster.
 
  If you have a VM, all I'm saying is: I have good experience
  with nbd. And as far as I know, there is a NBD server for windows, but I
  didn't look much into it. This way, you could export your USB disk
  from a windows machine and import = mount it from any nbd-capable *nix
  machine on the same network.
 
 It might also work to re-spin one of the live linux CD distributions 
 that auto-detect most common hardware, but a VM sounds easier.  Both 
 Virtualbox and the current vmware server/player claim to work with USB 
 2.0 but I haven't done any speed tests yet - in fact I haven't been able 
 to get virtualbox to see usb drives at all.
 
I think USB only works in the closed source version of VirtualBox.

If you decide to got the live cd route, you might want to try Ubuntu.
Version 8.10 comes with a nice and easy USB stick installer.  Sidux has
one, too.

-Rob

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Re: [BackupPC-users] vmware/virtuabox/etc.?

[Rob Owens]

On Wed, Apr 08, 2009 at 04:30:15PM -0500, Les Mikesell wrote:
 Rob Owens wrote:
  If you decide to got the live cd route, you might want to try Ubuntu.
  Version 8.10 comes with a nice and easy USB stick installer.  Sidux has
  one, too.
 
 I think clonezilla has a ubuntu-base version.  I'll try that again.  But 
 I'm still interested in a VM that has decent USB speed so I can plug 
 ext3 drives into my laptop and access them while still running windows.
 
Ooh, I just read an article today about Ubuntu portable.  It installs Ubuntu on 
a USB stick and you can run it from within Windows.  

http://news.softpedia.com/news/Softpedia-Linux-Weekly-Issue-40-108697.shtml#0

See if that's of any interest to you.

-Rob

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Re: [BackupPC-users] Can $Conf{DumpPreUserCmd} and $Conf{DumpPostUserCmd} be used to s top and start Exchange Server 5.5 on a Windows NT 4.0 Server as part of a BackupPC job?

[Rob Owens]

I used to backup an exchange server using BackupPC and a couple Microsoft 
utilities:  ntbackup and exmerge.  Both of them can back up the exchange
database while exchange is running.  I then used BackupPC to backup the output 
of those utilities.  

ntbackup creates one huge file for the exchange database.  Exmerge creates a 
separate pst file for each mailbox.  

-Rob

On Sun, Mar 08, 2009 at 04:34:19PM -0700, Jessie M. Bunker-Maxwell wrote:
 We are just beginning to use BackupPC running on a Debian Linux server to
 backup our Exchange Server 5.5 databases via rsyncd running on the Windows
 NT 4.0 server where Exchange is installed.
 
 Currently, we have bat files scheduled to run on our Windows NT 4.0 Exchange
 Server to stop Exchange services before the BackupPC job runs and start
 Exchange services afterwards.  But this means we're estimating the length of
 time needed for the backups and scheduling these jobs with a safe margin in
 either direction.
 
 I am concerned that: 1) we are leaving our Exchange database down longer
 than necessary; and 2) if something goes wrong and the procedures that stop
 or start the Exchange database run while BackupPC has the Exchange files
 open for backup, we may corrupt our Exchange data (am I being paranoid
 here?).
 
 It would be nice if the BackupPC job itself could issue the net stop and
 net start commands and I'm assuming I would use the $Conf{DumpPreUserCmd}
 and $Conf{DumpPostUserCmd} but I don't understand from the documentation how
 this would be done if you're issuing commands to a Windows server.  Maybe
 this is not possible?
 
 Can someone tell me if/how I could use $Conf{DumpPreUserCmd}  and
 $Conf{DumpPostUserCmd} to remotely stop and start Exchange?
 
 Does anyone know if there is any risk around attempting to stop or start the
 Exchange services while BackupPC has the files open for backup?
 
 Thanks much.
 
 Jess
 
 Jessie M. Bunker-Maxwell
 Network Access Services
 Santa Cruz Public Library
 224 Church St.
 Santa Cruz, CA 95060
 v: 831-420-5764
 f: 831-459-7936
 e: je...@santacruzpl.org
 
 

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Re: [BackupPC-users] How does BackupPC work?

[Rob Owens]

On Mon, Feb 23, 2009 at 01:15:05PM -0600, Les Mikesell wrote:
 Tino Schwarze wrote:
  The n+1-th incremental
  compares against the most recent n-th incremental, therefore only
  transfers the difference to that. But since mergine several incrementals
  is expensive in terms of server I/O, you may limit the number of levels.
 
 This is an option in recent versions only - and I'm not sure whether it 
 is on by default or not.
 
It's not on by default.  I use it for over-the-internet backups in order to 
decrease bandwidth usage.

-Rob

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Re: [BackupPC-users] how to backup the backuppc server (off site)

[Rob Owens]

On Tue, Feb 10, 2009 at 12:43:44PM -0500, scurry7 wrote:
 
 Since most on-line storage service (that I know of) do not allow me to 
 configure my own server but merely transfer data to them, do you all think it 
 would work to setup an additional backupPC server (with the same backups) and 
 mount a remote file-system (the online storage) via sshfs or something to my 
 /var/lib/backuppc directory?
 So if things went down I could re-install then re-mount the remote filesystem?
 
 (I have a 10MB up/down connection to the Internet)
 
 If so which protocol do you think would work best for secure transmission of 
 data?
 
 If not why?
 
Why not just use a full BackupPC server at your home, or the President of the 
company's home, or somewhere else secure?

I've used sshfs in the past (not for BackupPC), and I had trouble keeping it 
connected for extended periods of inactivity.

-Rob

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Re: [BackupPC-users] multiple pre/post commands

[Rob Owens]

On Mon, Feb 02, 2009 at 06:47:35PM -0500, Nick Smith wrote:
 Is it possible to use more than on pre/post command per host?
 Would they need to be separated by a semi-colon or comma or similar?
 
 Thanks for any help, i couldnt find the info in the docs or from google.
 
I'm not sure, but couldn't you just make a script that runs all your commands, 
and call that script as a single pre/post command?

-Rob

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Re: [BackupPC-users] multiple pre/post commands

[Rob Owens]

In bash, you can make your script accept arguments.  See this link:  
http://www.ibm.com/developerworks/library/l-bash2.html

I'm not sure if this works or not for the backuppc user, because his shell is 
sh.  Maybe someone else can advise.

-Rob

On Mon, Feb 02, 2009 at 07:33:07PM -0500, Nick Smith wrote:
 What would the script look like?
 
 The two commands are:
 /etc/backuppc/preusercmd-host1.sh $host
 /etc/backuppc/startbkupemail.sh $user $xferOK $host $type $cmdType
 
 the latter one has from what ive played with it, has to be run from
 the predump command or the variables backuppc defines dont get picked
 up for some reason.
 
 any ideas?
 
 On Mon, Feb 2, 2009 at 7:16 PM, Rob Owens row...@ptd.net wrote:
  On Mon, Feb 02, 2009 at 06:47:35PM -0500, Nick Smith wrote:
  Is it possible to use more than on pre/post command per host?
  Would they need to be separated by a semi-colon or comma or similar?
 
  Thanks for any help, i couldnt find the info in the docs or from google.
 
  I'm not sure, but couldn't you just make a script that runs all your 
  commands, and call that script as a single pre/post command?
 
  -Rob
 
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Re: [BackupPC-users] vista laptops info

[Rob Owens]

Could you back up the mail server instead of the clients?  I've used exmerge (a 
free-of-charge MS utility) to break the exchange store up into individual pst 
files -- then use BackupPC to back them up.  They will not get locked.

-Rob

On Sun, Feb 01, 2009 at 11:02:27AM +, Terry wrote:
 Hi every one. I have a small work group of vista laptops who come into 
 the office and connect using wireless and dhcp.
 I am looking to backup there my documents and there pst file which tend 
 to be a round 2 to 3 GB.
 The one big snag is there pst files are mostly going to be open and even 
 when they close out look the outlook process may still be running due to 
 add ons they have such as act etc.
 Any pointers or experiences welcome. Or am I going to be banging my head 
 against a brick wall.
 
 The plus point is I have a freebsd server to use. I am in the middle of 
 setting up backuppc at home now for some testing
 
 Thanks
 Terry
 
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Re: [BackupPC-users] BackupPC over a Firewall (IPtables)

[Rob Owens]

You could use either a VPN or ssh port forwarding.  For ssh port forwarding, it 
would go something like this:

ssh -L :remotemachine:22 usern...@servername

Then you can do:

ssh -p  someu...@localhost

servername is a machine behing the firewall that can receive ssh requests 
from the internet.  remotemachine is a machine on the same network as 
servername, which you want to ssh into (for the purpose of running a backup). 
 The port forwarding makes your local port  pretend to be port 22 on 
remotemachine. 

This works for one remote host.  You would need to repeat the process for each 
remote host.  You could specify a different port (2223, perhaps), or you could 
re-use port  as long as you end the previous session before starting a new 
one.

This will all have to be worked into a DumpPreUserCmd.

-Rob


On Wed, Jan 28, 2009 at 06:09:13PM +0100, Sam Przyswa wrote:
 Hi,
 
 Is it a way to backup multiples Windows and Ubuntu machines (up to 200 
 machines) over a firewall on the same port if it's possible ?
 
 Thanks for your reply.
 
 Sam.
 
 
 
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Re: [BackupPC-users] BackupPC over a Firewall (IPtables)

[Rob Owens]

On Wed, Jan 28, 2009 at 07:07:26PM +0100, Sam Przyswa wrote:
 
 
 Rob Owens a écrit :
  You could use either a VPN or ssh port forwarding.  For ssh port 
  forwarding, it would go something like this:
 
  ssh -L :remotemachine:22 usern...@servername
 
  Then you can do:
 
  ssh -p  someu...@localhost
 
  servername is a machine behing the firewall that can receive ssh requests 
  from the internet.  remotemachine is a machine on the same network as 
  servername, which you want to ssh into (for the purpose of running a 
  backup).  The port forwarding makes your local port  pretend to be port 
  22 on remotemachine. 
 
  This works for one remote host.  You would need to repeat the process for 
  each remote host.  You could specify a different port (2223, perhaps), or 
  you could re-use port  as long as you end the previous session before 
  starting a new one.

 
 Ok but with 200 machines, manage 200 port forwards it's not very useful, 
 and what about Windows machines and SMB shares ?
 
  This will all have to be worked into a DumpPreUserCmd.

 
 What is DumpPreUserCmd ?
 
For simplicity, I'd try to back up all machines using the same method.  Perhaps 
rsyncd would be best.  Then you could use the $host variable in the 
DumpPreUserCmd.  DumpPreUserCmd runs a command before performing the backup.  
You would run your port forwarding command like this:

ssh -L :$host:873 usern...@servername sleep 10

Note that port 873 is for rsyncd, and I have added sleep 10 because this will 
automatically end the port forward after 10 seconds of inactivity. 

If all your hosts are behind the same firewall, then this is easy to do.  Just 
put the above command in the main configuration (not host-specific 
configuration).  With this setup, you can only back up one host at a time.

You should experiment before putting this into production, because this is all 
off the top of my head and I haven't double-checked it.

-Rob

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Re: [BackupPC-users] Backuppc cygwin rsync fails to write files to C drive.

[Rob Owens]

On Tue, Jan 27, 2009 at 01:01:41PM -0500, vnetrix wrote:
 
 Hi,
 not sure if anyone has come across this before.  I have a full backup of a 
 windows 2003 X86_64 R2 server.  This includes an NT system state job to 
 capture the parts the backuppc cannot backup nativly.
 
 The backup has a C$ share and a D$ share contained in it.
 I'm using cygwin with rsync version 2.6.9 on the windows server running as an 
 rsyncd system service.
 
 I can restore the D$ share without any problems.  But when I try and restore 
 the C$ share to the C: drive of a rebuilt server.  Backuppc says it has 
 restored the files but when I check on the hard drive several files under 
 C:\windows\system32\drivers have not been restored.
 
 This means that when I restore the system state and reboot I get 
 unrecoverable boot errors. So I have to rebuild the server from scratch.
 
 I have managed to restore some of the driver files to the root of the D: 
 drive.  But when I try and restore them with the full path to the D$ drive I 
 get an error saying mkdir failed.
 
Make sure that the rsync daemon is running as a user who has permission to 
create the files/directories you are trying to restore.

-Rob

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Re: [BackupPC-users] sudoers

[Rob Owens]

On Wed, Jan 21, 2009 at 10:15:43PM -0600, Terri Kelley wrote:
 Ok, apparently I am particularly dense tonight. I have had the  
 following error when setting up a host:
 
  Remote[1]: rsync: push_dir#3 /home/backuppc/15 failed: No such file
  or directory (2)
  Remote[1]: rsync error: errors selecting input/output files, dirs
  (code 3) at main.c(602) [sender=2.6.8]
  Read EOF:
  Tried again: got 0 bytes
  fileListReceive() failed
 
 The above directory doesn't exist and shouldn't and I don't have it  
 anywhere in backuppc for that host.
 
 So I am trying to test using rsync via command line from the backuppc  
 server to test the problem. The host server automatically backs up its  
 files to a directory/files owned etc by root and I am trying to backup  
 that host to backuppc. If I rsync from the backuppc server as root,  
 that works. So I am trying to rsync as backuppc user. I have entered  
 the following in visudo on the host:
 
 ## Allow root to run any commands anywhere
 rootALL=(ALL)   ALL
 backuppc ALL=NOPASSWD:/usr/local/bin/backuppc-rsync
 backuppc ALL=NOPASSWD:/root/backups/
 
I don't think that last line is right.  You are supposed to list a command that 
the user can run, and /root/backups/ is not a command.

You seem to want to give user backuppc read access to /root/backups/, but is 
not being accomplished.  If you want to specify a specific path that backuppc 
is allowed to back up, you need something like:

ALL=NOPASSWD: /usr/bin/rsync --server --sender *

Only you should replace the * with the specific switches and paths that you 
need.  You can find them by running the backup as root, and doing ps aux on 
the host machine to see the exact rsync command that is being run.  I believe 
you can also find that command in the BackupPC log files.

-Rob

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Re: [BackupPC-users] sudoers

[Rob Owens]

On Thu, Jan 22, 2009 at 01:39:34PM -0600, Terri Kelley wrote:
 
 On Jan 22, 2009, at 12:14 PM, Rob Owens wrote:
 
  On Wed, Jan 21, 2009 at 10:15:43PM -0600, Terri Kelley wrote:
  Ok, apparently I am particularly dense tonight. I have had the
  following error when setting up a host:
 
  Remote[1]: rsync: push_dir#3 /home/backuppc/15 failed: No such  
  file
  or directory (2)
  Remote[1]: rsync error: errors selecting input/output files, dirs
  (code 3) at main.c(602) [sender=2.6.8]
  Read EOF:
  Tried again: got 0 bytes
  fileListReceive() failed
 
  The above directory doesn't exist and shouldn't and I don't have it
  anywhere in backuppc for that host.
 
  So I am trying to test using rsync via command line from the backuppc
  server to test the problem. The host server automatically backs up  
  its
  files to a directory/files owned etc by root and I am trying to  
  backup
  that host to backuppc. If I rsync from the backuppc server as root,
  that works. So I am trying to rsync as backuppc user. I have entered
  the following in visudo on the host:
 
  ## Allow root to run any commands anywhere
  rootALL=(ALL)   ALL
  backuppc ALL=NOPASSWD:/usr/local/bin/backuppc-rsync
  backuppc ALL=NOPASSWD:/root/backups/
 
  I don't think that last line is right.  You are supposed to list a  
  command that the user can run, and /root/backups/ is not a command.
 
  You seem to want to give user backuppc read access to /root/ 
  backups/, but is not being accomplished.  If you want to specify a  
  specific path that backuppc is allowed to back up, you need  
  something like:
 
  ALL=NOPASSWD: /usr/bin/rsync --server --sender *
 
 The backuppc-rsync above refers to the following script:
 
 #!/bin/sh -f
 exec /usr/bin/rsync --server --sender $*
 
What's the $ for?  I don't use that and I'm not sure if it would have any 
adverse effects.

 And you are right, I want user backuppc to have read access to /root/ 
 backups (owned etc by root) since that server itself creates its on  
 backups and stores them there. I had put the /root/backups in visudo  
 because of the trouble I was having and I guess I was punting.
 
  From the backuppc server as root (have to type in password) this works:
 rsync -avz -e ssh -p 22 myserver.domain.net:/root/backups /var/tmp/ 
 pwrnctmpback/rsyncmanual
 
  From the backuppc server as user backuppc this results in the  
 mentioned push_dir failure:
 rsync -avz -e ssh -p 22 -l backuppc --rsync-path /usr/bin/sudo /usr/ 
 local/bin/backuppc-rsync myserver.domain.net:/root/backups /var/tmp/ 
 pwrnctmpback/rsyncmanual
 
Try it like this:
sudo rsync -avz -e ssh -p 22 -l backuppc --rsync-path 
/usr/local/bin/backuppc-rsync myserver.domain.net:/root/backups 
/var/tmp/pwrnctmpback/rsyncmanual

I think you should consider getting rid of your backuppc-rsync script and just 
put /usr/bin/rsync --server --sender * (or $* if there's good reason for it) in 
sudoers.

-Rob

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Re: [BackupPC-users] how to examine progress of backup

[Rob Owens]

Les Mikesell wrote:
 Matthias Meyer wrote:
 I use rsyncd to backup both, windows as well as linux clients.
 Is it possible to examine or calculate the progress of an actual running
 backup?
 
 No, gnu tar has a way to get an estimate of the size of an incremental 
 run that amanda uses to help compute what will fit on a tape, but rsync 
 doesn't have an equivalent.
 
 One Idea would be to calculate the duration of the last backups and assume
 the actual backup will have the same performance. But this can be wrong if
 some new (big) files had been added.
 Another Idea is to examine the filespace of the share and calculate the
 estimated duration based on the last transfer rates. But this can be wrong
 if some (big) files are in the exclusion list.

 Any Ideas?
 
 I don't think it is even possible to guess how much rsync will transfer 
 on a changed file without running through the whole comparison.
 
I think if you use the --dry-run option in rsync it may tell you how
much data would have been transferred.

-Rob


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Re: [BackupPC-users] Backing up the backup to an external USB drive

[Rob Owens]

Rodrigo Real wrote:
 Hi
 
 Holger Parplies wrote:
 Hi,

 Andreas Micklei wrote on 2008-12-15 10:13:38 +0100 [Re: [BackupPC-users] 
 Backing up the backup to an external USB drive]:
 Am Freitag, 12. Dezember 2008 schrieb Rich Rauenzahn:
 Some of you running dd might want to consider dump
 [...]
 I have been doing that for about two years now. Works great!
 I've been meaning to ask/point this out for some time now. Has anyone 
 actually
 tried *restoring* a dump of a *reasonably sized* pool? The reason I'm asking 
 is
 that as far as I understand the man page, restore runs completely in user
 space, so it is faced with the same problem as cp/rsync/tar - the need to 
 keep
 an inode-to-path-name mapping for correctly re-creating hardlinks. It is
 possible that restore can handle this problem, but I wouldn't take it for
 granted without testing.
 
 The restore issue is the reason that targets me to a sort of live system 
 which I can easily test and use  any time I want. I prefer to waste some 
 time more while doing the backup and than to do a fast backup and spent 
 a lot of time to recover it in case of disaster. That's why I want to 
 have this live USB-HD.
 
I thought about something similar a while back.  I never got anywhere
with it, but the plan was to use Knoppix or Knoppix-like technology to
have all the hardware automatically detected and configured at boot.
That way the hard drive could be installed in any machine and it would
work.

This info may be outdated:  Knoppix has 3 configuration options for a
hard drive installation.  The one you would want is called Knoppix,
and it basically runs the live cd system on a hard drive.  All the live
cd startup scripts run, so hardware is detected automatically.

I don't think Knoppix would be the best distro to use, due to its
mish-mash of repositories, but maybe a Debian live cd or Ubuntu live cd
would do the trick for you.  I'm just not sure how to install them to
the hard drive in Knoppix mode.

-Rob


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Re: [BackupPC-users] I broke perfection ...

[Rob Owens]

If you're being prompted for a password, then the public key is being
ignored for some reason.  This could be due to permissions.  The .ssh
directory should have 700 permissions (chmod 700 .ssh).  Some distros
are picky about the permissions of the individual files in .ssh.  Just
to be safe, give every file in .ssh 600 permissions (chmod 600 .ssh/*)

-Rob

Kenneth L. Owen wrote:
 Mike,
 
 I have answered yes to the prompt to accept the key and immediately get
 asked for a password.  I have tried entering the password thinking that it
 might be 'just this once', but when I rerun the command, I am prompted for
 the password again.  When I set this up before, this test ran without a
 hitch, and I simply got a response of 'root' to the whoami command.  -- ken
 
 -Original Message-
 From: Les Mikesell [mailto:[EMAIL PROTECTED] 
 Sent: Thursday, December 04, 2008 3:38 PM
 To: General list for user discussion,questions and support
 Subject: Re: [BackupPC-users] I broke perfection ...
 
 Kenneth L. Owen wrote:
 The problem is that when all is working properly, and I run the command
 -bash-3.2$ ssh -l root Winserver whoami
 (bash-3.2$ prompt since user 'backuppc' was setup on Fedora 8 'no-logon')
 WinServer should not ask for a password or pass-phrase, but only respond
 'root'
 
 Did you ever answer 'yes' at the point where your earlier message showed 
 a ^C instead?  You do have to answer yes to that once (and only once). 
 Then if it goes on to ask for a password your keys aren't set up right.
 
 The process is not generating password/phrase-less keys!
 
 This is determined by how you respond during the keygen step for the 
 backuppc user.  If you just hit enter at the prompt for a passphrase you 
 won't have one.  After that you just have to get the pub part of the key 
 into the /root/.ssh/authorized_keys2 file on the target with permissions 
 set correctly.
 
 It did on the original setup back in October before the crash.  I am
 wondering if some file or program update issued in the last month or so
 may
 be affecting the way the system is working now.
 
 An update would affect everyone.  It hasn't.
 


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Re: [BackupPC-users] I broke perfection ...

[Rob Owens]

 for the first time will get that message.

The other set of keys is the user's key pair.  These are created with
the ssh-keygen command, and they are used for authentication purposes
(in place of password authentication).  If a user places his public key
in the ~/.ssh/authorized_keys file on another machine, that gives him
the ability to log into that other machine as that particular user
(whichever user's home directory he put the keys in).  So I could put my
public key in /home/rob/.ssh/authorized_keys and in
/var/lib/backuppc/.ssh/authorized_keys and in /root/.ssh/authorized_keys
and that would allow me to log in as rob, backuppc, and root on
that server.

 Does it matter if the BackupPC service is running?  I think it was stopped
 when I created the keys this time.
 
No, that doesn't matter.

So what's the problem you're having again?  The only error message I see
is ABORTED DUE TO FAILURE, but that's because you hit ctrl-c when
asked if you were sure you wanted to connect.

-Rob

 -Original Message-
 From: Rob Owens [mailto:[EMAIL PROTECTED] 
 Sent: Wednesday, December 03, 2008 10:30 AM
 To: General list for user discussion,questions and support
 Subject: Re: [BackupPC-users] I broke perfection ...
 
 
 
 Kenneth L. Owen wrote:
 Back in October, I was a Linux newbie struggling to get BackupPC to work
 and was successful in a very short time with the great support I got
 here (Ref:  Almost Working).  Since then, I've monitored the system
 
 Deleted text 
 
 Yes, because it is the fingerprint of the server (it is not
 user-specific).  FYI, the RSA key it is referencing is in /etc/ssh/
 (it's probably called ssh_host_rsa_key.pub).
 
 The first time you were asked this question, you were scp'ing as root.
 Now you are ssh'ing as a different user.  That is why you're being asked
 the question again.  Each user gets the opportunity to accept or reject
 the validity of a server's public key (by verifying that the fingerprint
 is correct).  This information is recorded in the user's
 ~/.ssh/known_hosts file.
 
 -Rob
 
 Are you sure you want to continue connecting (yes/no)? ^C  ===
 ABORTED DUE TO FAILURE

 -bash-3.2$

 
 
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Re: [BackupPC-users] Project Cuba announcement, was: Wh at is the latest on acl backup for Windows (and selinux)?

[Rob Owens]

Jeffrey J. Kosowsky wrote:
 It seems to me like a shame that there hasn't been more interest and
 effort in getting BackupPC working better on Windoze because now it
 really is only useful for limited user file backups. Without
 proper treatment of the registry, ACLs, and all the other details of
 NTFS, I wouldn't want to rely on BackupPC to restore system-level files
 or even executable programs. This means that I still need to do
 occasional full disk clones which typically require manual
 intervention (unless you buy commercial software) and take up lots of
 space since they don't offer the pooling functionality.
 
I think the going theory (my theory, anyway) is that if a Windows system
crashes, you might as well use the opportunity to do a fresh install.
Windows seems to need that once in a while anyway.  Maybe your
experience is different, but I find that Windows generally has aging
problems.  It behaves worse and worse over time.

-Rob


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Re: [BackupPC-users] I broke perfection ...

[Rob Owens]

Kenneth L. Owen wrote:
 Back in October, I was a Linux newbie struggling to get BackupPC to work
 and was successful in a very short time with the great support I got
 here (Ref:  Almost Working).  Since then, I’ve monitored the system
 operation and performed two restore tests, one from a full backup and
 one mid-stream off of the incremental files.  The total byte count was
 about 75 GBytes with a perfect score by comparison of every single
 byte.  The BackupPC system works GREAT!
 
  
 
 Since the testing, I’ve moved on to another issue that was brought to my
 attention during the work to get BackupPC working:  /_Fedora was
 probably not the best distribution of Linux to run a server function_./ 
 While working with other distro’s, I goofed and trashed my perfectly
 running system.  I have rebuilt it up to the point of installing my
 ssh-keys for rsync.  In as far as I know, I’m doing the same thing as
 before when it worked out just fine.  This time, it all looks good
 during the setup, but ‘backuppc’ user is not getting ‘root’ authority
 when tested.  I’ve tried several times, consistently getting the same
 result.  I am hoping that someone will see where this somewhat less of a
 newbie is messing up.  All comments are welcome.  -- ken
 
 Below is a transcript of the last session:
 
  
 
 Starting on my Windows-server, I removed previous setup from /root/.ssh:
 
  
 
 [EMAIL PROTECTED] .ssh]# rm -f *
 
  
 
 [EMAIL PROTECTED] .ssh]# ls -al
 
 total 16
 
 drwx--  2 root root 4096 2008-11-29 16:50 .
 
 drwxr-x--- 27 root root 4096 2008-11-29 16:22 ..
 
  
 
 Next, I generated a key-pair on the Windows-server:
 
  
 
 [EMAIL PROTECTED] .ssh]# ssh-keygen -t rsa
 
 Generating public/private rsa key pair.
 
 Enter file in which to save the key (/root/.ssh/id_rsa):
 
 Enter passphrase (empty for no passphrase):
 
 Enter same passphrase again:
 
 Your identification has been saved in /root/.ssh/id_rsa.
 
 Your public key has been saved in /root/.ssh/id_rsa.pub.
 
 The key fingerprint is:
 
 fe:a0: … :7b:9e [EMAIL PROTECTED]
 mailto:[EMAIL PROTECTED]  ç Ref at end
 
 [EMAIL PROTECTED] .ssh]#
 
[EMAIL PROTECTED] does not need a keypair unless [EMAIL PROTECTED] is going to
log in remotely via ssh to another machine.

  
 
 I verified the archiving host was listed in /etc/hosts:
 
  
 
 [EMAIL PROTECTED] .ssh]# cat /etc/hosts
 
 # Do not remove the following line, or various programs
 
 # that require network functionality will fail.
 
 127.0.0.1   WinServer.localdomain   WinServer   WinServer
 
 ::1 localhost6.localdomain6 localhost6
 
 192.168.1.106   Archiver.localdomainArchiver this is it
 
 [EMAIL PROTECTED] .ssh]#
 
  
 
 On the archiver, I removed the old configuration from
 /var/lib/BackupPC/.ssh,
 
 changed to user 'backuppc' on /var/lib/BackupPC and created a key-pair:
 
  
 
 [EMAIL PROTECTED] .ssh]# rm -f *
 
 [EMAIL PROTECTED] .ssh]# ls -al
 
 total 16
 
 drwx-- 2 backuppc root 4096 2008-11-29 16:53 .
 
 drwxr-x--- 8 backuppc root 4096 2008-11-26 21:26 ..
 
  
 
 [EMAIL PROTECTED] .ssh]# su -s /bin/bash - backuppc
 
 -bash-3.2$ whoami
 
 backuppc
 
  
 
 -bash-3.2$ ssh-keygen -t rsa
 
 Generating public/private rsa key pair.
 
 Enter file in which to save the key (/var/lib/BackupPC/.ssh/id_rsa):
 
 Enter passphrase (empty for no passphrase):
 
 Enter same passphrase again:
 
 Your identification has been saved in /var/lib/BackupPC/.ssh/id_rsa.
 
 Your public key has been saved in /var/lib/BackupPC/.ssh/id_rsa.pub.
 
 The key fingerprint is:  34:e2: … :e8:73 [EMAIL PROTECTED]
 
  
 
 -bash-3.2$ cp ./.ssh/id_rsa.pub ./.ssh/BackupPC_id_rsa.pub
 
  
 
 -bash-3.2$ ls ./.ssh
 
 BackupPC_id_rsa.pub  id_rsa  id_rsa.pub
 
  
 
 -bash-3.2$ scp ./.ssh/BackupPC_id_rsa.pub [EMAIL PROTECTED]:/root/.ssh/
 
 The authenticity of host '192.168.1.101 (192.168.1.101)' can't be
 established.
 
 RSA key fingerprint is 57:e6: … :7a:c6.
 
FYI, you do not need to conceal fingerprints.  It is the fingerprint of
a *public* key, and it doesn't hurt anything if everybody can see it.

 Are you sure you want to continue connecting (yes/no)? yes
 
 Warning: Permanently added '192.168.1.101' (RSA) to the list of known hosts.
 
 [EMAIL PROTECTED]'s password:
 
 BackupPC_id_rsa.pub   100%  411 0.4KB/s   00:00   
 
 -bash-3.2$
 
  
 
 Back on the Windows-server, I added BackupPC_id_rsa.pub to authorized_keys2:
 
  
 
 [EMAIL PROTECTED] .ssh]# ls -al
 
 total 40
 
 drwx--  2 root root 4096 2008-11-29 16:53 .
 
 drwxr-x--- 27 root root 4096 2008-11-29 16:22 ..
 
 -rw-r--r--  1 root root  411 2008-11-29 16:53 BackupPC_id_rsa.pub
 
 -rw---  1 root root 1675 2008-11-29 16:50 id_rsa
 
 -rw-r--r--  1 root root  408 2008-11-29 16:50 id_rsa.pub
 
  
 
 [EMAIL PROTECTED] .ssh]# cat BackupPC_id_rsa.pub  authorized_keys2
 
 [EMAIL PROTECTED] .ssh]#
 
  
 
 Edited Authorized_keys2 to add 'from=Archiver.localdomain':
 
  
 
 [EMAIL PROTECTED] .ssh]# cat authorized_keys2
 
 

Re: [BackupPC-users] maximum clients/data

[Rob Owens]

[EMAIL PROTECTED] wrote:
 Hi list,
 
 Is there some way to determine approximately how many clients (or how  
 much data) can be backup up with backuppc?
 
 (For example, the server has a dualcore 2Ghz processor, 1000mb ram,  
 backups are made with rsync method, clients are on a LAN with 100mb  
 network cards and switches, you want a weekly full and a daily  
 incremental backup)
 
 I use backuppc backupservers for different small networks and I am  
 pretty happy with it, but I have the impression that it is a lot  
 slower then for example bacula. I'm not sure whether I could improve  
 it by changing the settings or that my impression that it is slower is  
 true. I'm not looking for a solution to a specific problem but I would  
 like to determine how scalable backuppc is.
 
If I were you, I'd test with 'iftop' on the BackupPC server.  That'll
tell you how much bandwidth you're using.  If you're just about
saturating your 100mb NIC, then BackupPC is not slowing you down.

Check 'iftop' when backing up a single host, and again when backing up a
few hosts.

Note that rsync takes some time to compile the file list, during which
time it uses very little bandwidth.  You might want to see how long it
takes to compile the file list under various circumstances.  Be sure to
test it for both full and incremental backups (fulls take much longer).

-Rob


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Re: [BackupPC-users] What is the latest on acl backup for Windows (and selinux)?

[Rob Owens]

Jeffrey J. Kosowsky wrote:
 Nicholas Hall wrote at about 18:46:35 -0600 on Monday, November 24, 2008:
   On Mon, Nov 24, 2008 at 4:41 PM, Jeffrey J. Kosowsky
   [EMAIL PROTECTED]wrote:
   
Nicholas Hall wrote at about 15:27:48 -0600 on Monday, November 24, 2008:
  On Mon, Nov 24, 2008 at 2:48 PM, Les Mikesell [EMAIL PROTECTED]
wrote:
 
   The registry is another tricky part.  You may need parts relating to
   what you are restoring, but if you aren't going back to exactly the
same
   machine/environment you may not want all of it.
  
 
  I've got all my win32 boxes doing a local NTbackup to disk which
BackupPC
  picks up.  It's kinda a pain but works.
 
What do you mean by that? I'm not sure I understand how that is
different. Please explain if you don't mind.
   
   
   Referring to backing up the registry.  NTBackup which comes standard on
   Windows can backup System State via VSS which includes the registry and
   also system32 I believe.  NTBackup dumps out a .bkf file which I have
   BackupPC grabbing.
 
 OK. I think I am beginning to understand (I don't know much about
 Windows).
 Could you just clarify that I am understanding correctly ;)
 
 - It seems like all the files that I wasn't able to back up because
   they are locked are actually critical things like the Registry
   (i.e. NTUSER.DAT)
 - NTBackup uses VSS to dump these locked files to a readable file
 - You then use BackupPC to backup that file.
 
 Is there any reason I couldn't add a command to run NTBackup to my
 DumpPreUserCmd and have it write out the backup file to a fixed
 place on my windows machine?

You'd have to be able to log in remotely and execute the command.  That
will require ssh or something similar, and knowledge of how to launch
that command from the command line (unless you know another way of doing
it -- I don't).

 Also, I assume I could just write the file to the Windows machine
 itself so that BackupPC would pick it up automatically.
 
Yes you could.  Depending on how long it takes to run NTBackup, this
might actually be a better method than running it under DumpPreUserCmd
-- it won't tie up the BackupPC machine while NTBackup is running.

-Rob


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Re: [BackupPC-users] BackupPC DR Replication

[Rob Owens]

Andrew Libby wrote:
 Greetings,
 
 I've been running BackupPC for a few months.   I'm now
 thinking of disaster recover strategy.  My initial thought
 is to replicate (via rsync) the BackupPC configs and data to
 another server.  This server would not actively run BackupPC
 jobs, but I would like to be able to restore from it in the
 even to of a catastrophe.
 
 Is this a reasonable approach?  Are others doing something
 like this, or something else even to meet the same objectives?
 
Seems reasonable, as long as you test it.  Rsync'ing the pool can take a
long time (I've done it).  You should consider whether you want your
second server to be on-site or off-site.

Here's what I do:

I have one on-site BackupPC server, and one off-site BackupPC server.
They are each configured to backup the same hosts -- I don't rsync one
server to the other, I just let them both run.  Each server uses
software RAID 1 (mirrored drives).  If a drive fails, I have an
immediate failover via RAID.  If a server burns up in a fire, I have two
choices to restore:  1) perform my restore over the internet, which will
be pretty slow, or 2) ship one of the hard drives from the remote server
to me so I can install it in a new server and perform my restore locally.

-Rob


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Re: [BackupPC-users] Native Window version of rsync

[Rob Owens]

dan wrote:
 excuse me for arguing a few of these...
 
 On Wed, Nov 19, 2008 at 8:11 PM, David Rees [EMAIL PROTECTED]
 mailto:[EMAIL PROTECTED] wrote:
 
 On Wed, Nov 19, 2008 at 6:34 PM, dan [EMAIL PROTECTED]
 mailto:[EMAIL PROTECTED] wrote:
  the rync algorythm is actually part of the GPL code released by Andrew
  Tridgell.
 
 Yes, it is, but you can not Copyright algorithms, and you can't
 protect them from reverse engineering. You can patent an algorithm,
 but I know of no such patents on the algorithms used by rsync (not
 that I've looked).
 
 
 I believe this is somewhat of a grey area.  You will find many
 references of this going either way on google.
  

I've read the GPL a few times, but still I'm no expert.  However, I
think you guys are missing a key word here:  code.  The code is
copyrighted.  The ideas are not.  Ideas can be used by anyone, but if
you use GPL code then the derivative work must also be released as GPL
(if it is released at all).

-Rob


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Re: [BackupPC-users] Rsyncd - probability that it trashed my drive?

[Rob Owens]

[EMAIL PROTECTED] wrote:
 I just installed Rsyncd on my XP Pro machine and performed a full backup.
 Fourty-eight hours later my drive seems hosed. I have run a drive check
 and it won't complete, it sticks at 82%. The drive check as finding a
 nunmber of bad clusters and repairing files.
 
 To be fair I also allowed the Windows SP3 install in the same 48 hour
 window between no problems and problems. I also allowed a Java upgrade. I
 know, I know, what was I thinking!
 
 Anyway...what are the chances that rsyncd was responsible for the drive
 going down by somehow scrambling the data or some other unintended
 problem? Has anybody running rsyncd on XP Pro machines had any other
 problems to report?
 
I think the issue is that you had bad clusters, and one of the things
you installed happened to land on some of those bad clusters.  The bad
clusters probably went unnoticed until you tried to actually use them.

I've used rsyncd on a couple XP Pro machines with no problems.

-Rob


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Re: [BackupPC-users] Backuppc mirroring with rdiff-backup or not?

[Rob Owens]

Nils Breunese (Lemonbit) wrote:
 [EMAIL PROTECTED] wrote:
 
 Don't get me wrong:  I'll take the hacks.  It's better than  
 nothing.  I, like I think *most* of us, would kill (or even pay  
 for!) a method of replicating a pool in a guaranteed-correct way,  
 especially at the host or even backup level.  But I still worry  
 about using these hacks for production.
 
 You could also set up two BackupPC servers in two different locations.  
 No hacks needed.
 
That's what I do, and it works well.  My offsite BackupPC server is
actually an onsite BackupPC server at another office.  And my office
holds their offsite backups, so it works well.

-Rob


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Re: [BackupPC-users] Backuppc mirroring with rdiff-backup or not?

[Rob Owens]

dan wrote:
 Also, I did try to do some software raid mirroring over iscsi but did
 not do much more that basic testing.  The problem here is that the raid
 mirroring is syncronous so the slow iscsi connection will effect backup
 performance quite a bit.  I couldnt find any info on making the linux
 software raid work in async mode with the local drive being the priority
 drive.
 
Would the --write-mostly option do this?  (man mdadm)

-Rob


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Re: [BackupPC-users] Import client config

[Rob Owens]

Pierguido wrote:
 Hi all.
 I'm running backuppc on a linux server and everything works well.
 I have now to move backuppc on a solaris server and the main 
 installation went fine. I then copied the configuration files for the 
 differente servers to be backed up...i modify the hosts files and it 
 works...but, backuppc is not reading (so it seems) the per-server 
 configuration files.
 The permission are ok...everything belongs to backuppc user.

On my system, all the config files are owned by backuppc and assigned to
group www-data.  The files have 640 permissions.

Can your web server user read the files?

-Rob


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Re: [BackupPC-users] Rsyncd on XP

[Rob Owens]

Eric Snyder wrote:
 I was having problems with SMB on XP pro so have shifted gears and am 
 trying Rsyncd. I ran a full backup of the cDrive setup. The problem is 
 that I am using a backup user I created that is part of the user group 
 Backup Operators. I do get files backed up but... The only files I get 
 in the Documents and Settings folder is the backup user's files 
 (basically empty). There are other users there and I need to get those 
 files backed up as well. There seems to be a permission problem and I 
 can't get the other users files backed up.
 
 How do I get all the users files backed up using Rsynced?
 
 Config file:
 [cDrive]
 path = c:
 comment = Entire Drive
 auth users = removed,removed
 secrets file = c:/rsyncd/rsyncd.secrets
 # hosts allow = 172.16.0.17
 strict modes = false
 read only = true
 list = false
 

Does your rsyncd.conf file have a line like:

uid = someuser

This is the user that that the rsync daemon runs as.  Mine is set to be
my backup user.  I'm not sure what the default is, but if it's uid =
administrator, that might not give you enough rights to see everything.
 I'm pretty sure it needs to be run as someone who is in the Backup
Operators group.

Additionally, on my systems I found that some files were not readable by
the Backup Operators group.  That made it impossible for me to backup
those files until I fixed the problem.

-Rob


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Re: [BackupPC-users] upgrading backuppc 3.0 to 3.1

[Rob Owens]

Leandro Tracchia wrote:
 if i apt-get upgrade backuppc on ubuntu 8.04 it will try to install
 backuppc 3.1. this is good and what i want. but it will also try to
 upgrade samba, samba-common, smbclient, and smbfs. i don't want to
 upgrade the samba packages because it as i posted before, my backups
 were crashing with backuppc 3.1 and samba 3.2.3
 (http://www.mail-archive.com/backuppc-users@lists.sourceforge.net/msg12192.html).
 
 how can i prevent apt-get from upgrade the samba packages???
 
Consider this very experimental, and remember that I'm not an expert so
I may have made some mistakes:

You can change the dependencies in a deb package by editing its
control file.  You can do this in Gnome by right-clicking on the deb
file and choosing open in archive manager (or something like that).
Then do the same for control.tar.gz.  Then navigate the directory tree
to find a file called control.  Open that and edit the Depends line.
 The syntax is fairly obvious.

You need to make sure you don't change Depends in such a way that the
application won't work.  If backuppc 3.1 will really work with the older
versions of samba (or if you don't use samba with backuppc), then there
should be no problem changing the depends line.

Hmm, I'm not sure, but you might get an error about the signature not
being valid when you install your modified deb.

-Rob


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Re: [BackupPC-users] Disabling incremental to enable Full

[Rob Owens]

Alexandre - ArchivTech wrote:
 Hi there,
 
 Juste asking you on question on planning execution.
 
 I'd like to disable incremental since i use rsync, and so, full backups
 are ok for my needs giving me the same results as incremental.
 
Just so you know, rsync full backups take quite a bit longer than rsync
incrementals due to the extra disk access and processing time required
to examine every single file in your share.

As an example, using rsync over ssh to backup one of my linux hosts on a
gigabit LAN, a full backup took 1 hour and 8 minutes, while the very
next incremental backup took only 9 minutes.

-Rob


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Re: [BackupPC-users] Pool duplicates and corrupted backups

[Rob Owens]

Jeffrey J. Kosowsky wrote:
 The deeper I probe into this, the more confused I get and the more I
 worry about data integrity on my system...
 
Do a restore to a temporary location and then compare the original with
the restore using the diff command:

diff -r /path/to/original/* /path/to/restore/*

-Rob


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Re: [BackupPC-users] BackupFilesOnly problem

[Rob Owens]

Robin Munt wrote:
 Hello from a rainy Barcelona,
 
 I've just installed BakcupPC 3.1.0 from Sourceforge on a SUSE 10.2
 platform.  I am testing backup with a SUSE 11.0 client.
 
 Everything has installed fine, no problems setting up the CGI
 interface, etc etc.
 
 I've set the $Conf{XferMethod} = ''rsync;
 
 I want to limit the backup to just one area on the clientfor the
 moment /home/robin.  This is just a standard directory (there is
 only a / partition on the client). So In the CGI interface I set
 
 BackupFilesOnly to /home/robin
 
 Checking the /etc/BackupPC/config.pl file shows
 
 $Conf{BackupFilesOnly} = {
   '/home/robin' = [
 ''
   ]
 };
 
You have to first define a key, and then specify the files to backup
for that key.  key is one of your shares.  I think you made
/home/robin your key, and then left blank the field where you are
supposed to specify the files to backup.

-Rob


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Re: [BackupPC-users] REQUEST FOR ADVICE ON SUITABILITY OF BACKUPPC

[Rob Owens]

SamK wrote:
 QUESTIONS
 01 What are the benefits of using rsync rather versus smb?
Rsync only transfers the changed files -- even on full backups.  Smb
will require a periodic full transfer of all files.  Basically, rsync
requires much less bandwidth if you have a fairly large amount of static
data.

 02 Does the choice of rsync or smb affect the off-site copies on removable 
 disks for disaster recovery purposes?
rsync is *way* better if you're doing backups over the internet.

 03 Is it possible to use Samba domain accounts with backuppc rather that the 
 default Apache htpasswd?
I think all authentication has to be done through Apache, but it doesn't
necessarily have to be htpasswd.  I saw a post on this list recently
where someone explained how to set up LDAP authentication for Apache and
make it work with BackupPC.  So I suppose it's possible to use Samba
domain accounts, but I can't give you instruction on it.

 04 
 Rob Owens wrote:
 For every host you configure, you must assign a user who is permitted to 
 access those backups. You can assign multiple users and/or groups.
 How is the assignment of multiple groups conducted as opposed to using a list 
 of 'moreUsers'?
 
Hmm, I thought you could do groups, but maybe I'm confused.  Does
anybody know if it's possible?  What if you create an htgroup and enter
that group name as user in the hosts configuration section?

 05 When logging into BackupPC as a user is it possible to:
   (a) force the web page to defualt to displaying 'Browse backups'?
   (b) remove from the left-hand side-panel under aliased hostname section; 
 all options except 'Browse backups'?
   (c) remove from the left-hand side-panel the entire 'Server' section?
 
Admin-type stuff does not appear on the screen if the logged-in user is
not an admin.  (For instance, there will be no option to edit the global
config file).  Anything else can probably be removed if you dive into
the cgi code, but I don't think there's a simple for dummies set of
instructions -- I asked about that on this list a few months back.

-Rob


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Re: [BackupPC-users] Shadow Copy in WindowsXP

[Rob Owens]

Per the suggestion of somebody on this list, I use Exmerge (downloadable
from MS's website) to backup my Exchange server.  It saves a pst file
for each individual account and has rsync-like properties for restoring
-- for example it can restore new email messages only, if you want it to.

My Exchange server runs Exmerge daily, and then BackupPC backs up the
pst files.

-Rob

Peter McKenna wrote:
 Hi Dejan,
 If you are trying to backup the clients PIM info from Outlook why don't
 you use Backup.pst? It's available from the Microsoft web-site free, but
 requires validation. It basically does a backup of outlook data to a pst
 file when the user exits Outlook. You can then back this up.
 Regards,
 Peter
 
 
 On Sun, 2008-10-26 at 08:48 -0400, [EMAIL PROTECTED] wrote:
 hi,

 When searching the Internet, snapshots and shadow copy are associated with
 Server versions of Windows.

 I have to use shadow copy on client machines to be able to backup Outlook
 files but the only way I found to do that is by using XP's Backup program.
 This Backup program unfortunately makes bkf archive which creates unwanted
 additional steps in backing up/restoring.

 Any solution for this?

 Dejan


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Re: [BackupPC-users] REQUEST FOR ADVICE ON SUITABILITY OF BACKUPPC

[Rob Owens]

SamK wrote:
 This is an edited version of a previous post
 
 
 Hi.
 I am hoping to find some advice to assist in fulfilling the following wish 
 list.  The LAN is operating OK and supports both Linux (Ubuntu) and Windows 
 (XP) clients.  My questions relate only to BackupPC within this framework.  
 From research conducted it appears that some of the the wish list are 
 standard features of BackupPC.  I am hoping that those which remain can be 
 achieved by appropriate configuration.
 
 SUMMARY of LAN
 Primary Domain Controller Server
 OS = Ubuntu 8.04 LTS Server Edition
 Samba = 3.0.28a
 Share = home for each user
 Share = allusers (common area for all members of users group)
 
 BackupPC Server
 OS = Ubuntu 8.04 LTS Server Edition
 BackupPc = 3.0.0 (obtained from Ubuntu repository)
 
 WISH LIST
 01 Users not required to initiate backups
 02 Backup of each home and common area to be initiated from BackupPC Server 
 via schedule
 03 Users able to conduct restore via web interface
 04 Each user able to access and restore only their own home backup
 05 Every member of a common group able to access and restore a backup of a 
 common share
 06 Reliability of backup/restore higher priority than efficiency/speed
 07 Ease of use by end user of higher priority than security
 08 Ability for BackupPc administrative user to copy all backups to external 
 (removable) disks
 
 QUESTIONS
 01 Is the wish list achievable using BackupPC?
yes.  Of course, ease of use is different from one user to another.

 02 Is anyone able to point to a 'how to' type guide to assist with this?
The documentation is very long, but it provides a lot of very helpful
information.  That's where I'd start.  It's apparent that BackupPC will
do what you are looking for, so reading the documentation will not be a
waste of your time.

 03 Has any member of the forum any advice on how best to configure BackupPC 
 to meet the wish list?
For every host you configure, you must assign a user who is permitted
to access those backups.  You can assign multiple users and/or groups.
The default setup uses your web server's user/permission scheme.  For
instance, Apache uses an htpasswd file.

 04 Any suggestions of alternative FOSS products if BackupPC is not a suitable 
 choice?
 
I've used rsnapshot in the past.  You could try looking into that.

-Rob


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Re: [BackupPC-users] cygwin rsync 3.x/sshd?

[Rob Owens]

Les Mikesell wrote:
 Does anyone know if the old problem with windows/cygwin rsync hanging 
 when run under sshd is completely fixed now?  After an update that 
 picked up the 3.0.4 version of rsync I was able to copy a large 
 directory without any trouble.
 
I just tested it successfully.  I did an incremental on a ~30GB share
that was previously backed up using rsyncd.  Actual data transfered
during the incremental was ~10GB.

This was on a Windows 2003 server.

-Rob


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Re: [BackupPC-users] Why Inbox from Thunderbird gets deleted!?

[Rob Owens]

[EMAIL PROTECTED] wrote:
 Also, the problem with restore is likely rsyncd has write disabled,
 check the rsyncd.conf file for the correct settings.

 I was trying to find where is the settings for rsyncd write configuration,
 but no luck. Can you please be more specific?
 
In rsyncd.conf look for:

read only = true

It must be:

read only = false

if you want to restore backups.

-Rob


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Re: [BackupPC-users] Almost working

[Rob Owens]

Kenneth L. Owen wrote:
  On this path, my next step is to set up ssh-keys for BackupPC.
 Remember, that I am a novice in Linux.  I have instructions for creating
 the keys but find a discrepancy between the instructions (written for
 Debian) and the Fedora setup.  When creating keys on the archive unit
 running BackupPC, the instructions say to be logged in as user backuppc.
  Fedora 8 came with BackupPC installed and almost setup to run with
 directories, file permissions and a user (backuppc) in existence but set
 for no logon.  Do I instead work as root?  -- ken
 

Here's some background on how ssh keys work.

There are 2 basic types of keys:  keys which identify a server, and keys
which are used for user authentication.  Note that they are not really
different in construction, only in the purpose they serve.

The identifier keys go in /etc/ssh/some_keyfile_name and
/etc/ssh/some_keyfile_name.pub and are typically created by the system
when the ssh server software is installed.

The authentication keys are created by the user and are stored in the
/home/username/.ssh directory.  The filenames will be something like
id_rsa and id_rsa.pub.

Keys are generated as key pairs.  There is a private key and a public
key.  The public key ends in .pub and can be distributed freely.  It is
not a secret.  The private key is a secret, and only its owner should
have access to it.

Placing your public key on a remote server, inside the file
/home/someuser/.ssh/authorized_keys, will allow you to log into that
server as someuser.

In the case of BackupPC, the backuppc user is the one who needs to log
in to other machines.  Therefore the backuppc user (on the BackupPC
server) is the one who needs to generate keypairs and distribute the
public keys to the host servers that need to be backed up.

Backups need to be run as a user who has permission to read all the
files that you intend to back up.  For this reason, some people have the
backuppc user on the BackupPC server log in as root to the host servers.
 A more secure method is have the backuppc user log in as a non-root
user on the host servers (it can be any username that you decide on) and
give that user special permissions to read the files that need to be
backed up.  This is usually done using sudo.

Remember that when logging in remotely, the local username does not have
to match the remote username.  The backuppc user on the BackupPC server
can log into the host machines as root, backuppc, backupguy,
fred, or whatever you choose to set up.

Hope that helps.  Sometimes you need some background information to
complement the step-by-step instructions you find on the internet.

-Rob


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Re: [BackupPC-users] Almost working

[Rob Owens]

I agree with Nils that CentOS would be a better choice for you.  If you
like Fedora, you'll find that CentOS is nearly identical.  If you're
looking to try new things (sounds like you aren't, though), you could
try Debian or Ubuntu's LTS version.

If you want the longest support cycle for a server-type machine, I'd
stick with CentOS until you find a reason to use something different.

-Rob

Kenneth L. Owen wrote:
 When I started this transition, Fedora 8 was issued and stable.  When I am
 more stable with Linux, I'll be willing to be more adventurous.  -- ken
 
 -Original Message-
 From: Michael Mansour [mailto:[EMAIL PROTECTED] 
 Sent: Friday, October 10, 2008 11:23 PM
 To: General list for user discussion,questions and support;
 BackupPC-users@lists.sourceforge.net
 Subject: Re: [BackupPC-users] Almost working
 
 Hi,
 
 Hello all,

 For a number of years I have run a small home network of windows machines.
 I recently decided to move my computing to Linux.  I now have two machines
 running Fedora 8.  The first machine assumed the role of my windows server
 
 Why choose Fedora 8 and not Fedora 9? Fedora 8 has an End of Life next
 month:
 
 http://poelstra.fedorapeople.org/schedules/f-10/f-10-all-tasks.html
 
 No more support for it after that.
 
 Regards,
 
 Michael.
 
 
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Re: [BackupPC-users] Script for managing mdadm add/removes

[Rob Owens]

dan wrote:
 Your best bet here is to use udev rule for the device
 
Careful!  This will sync *any* drive that you plug in, won't it?  Or is
there a way to have a udev rule that applies to only a drive with a
specific UUID?

-Rob

 whenever the drive gets plugged in it should run the script
 
 [SCRIPT1]
 add the device to the array so it can sync.
 
 launch a script in the background that watches the sync and when it is
 100% complete, remove the disk from the array. (use while and awk probably)
 eject the disk
 notify you via email.
 
 make sure you are generous with `sleep` commands.  some things take a
 few seconds to settle so a 30 second wait here or there is a good thing.
 
 
 I will certainly give any help I can but I really suggest that you read
 this on writing udev rules http://reactivated.net/writing_udev_rules.html
 also, a quick while loop using awk to pull out the specific field you
 need for the while.  this shouldnt be terribly hard.
 eject /dev/sdb is pretty straightforward
 
 it will be very helpfull for you to learn to do this so i suggest you
 put as much effort into this as you can before getting any help.
 
 good luck.
 
 
 
 
 
 On Mon, Oct 6, 2008 at 4:40 PM, Kim Pedersen [EMAIL PROTECTED]
 mailto:[EMAIL PROTECTED] wrote:
 
 
 Hi everyone,
 
 I have been following the discussions about using Linux md raid1 as a
 way of creating an offline copy of the pool filesystem, which method Les
 Mikesell seems to be a big proponent of.
 
 I am about to try it out myself on an installation, where users will
 connect an external harddrive to the BackupPC server and sync the drive
 to the raid1 array using mdadm, and later disconnect it again for
 offline/offsite storage.
 
 As this is something that will happen on a regular basis, I am looking
 to automate it as much as practical (and possible) by writing a script
 for the umount/fail/remove and recognition of the external drives.
 
 Might there be someone on the list who have taken a shot at this already
 and be willing to share the code to get me jump started?
 
 
 Regards,
 
 Kim Pedersen
 
 
 
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Re: [BackupPC-users] Backup through slow line?

[Rob Owens]

Christian Völker wrote:
 Waking up this thread :)
 
 Ok, we discovered (and meanwhile I saw it on my systems) when doing 
 backuo with rsync the first full backup will take several days until 
 finished.
 
 Once this is done, every following backup consumes much less bandwith, 
 so it succeeds within 24hours.
 
 But what happens to a Windows machine backed up through this line with 
 smb? As there is no rsync involved may I assume every full backup needs 
 this amount of time?
 And does the smb transfer option start at the last failed backup again 
 (just like rsync does)?
 
smb will do a complete transfer on every full backup.  I think you
should use rsync or rsyncd on Windows (through Cygwin) if you plan on
backing up Windows machines remotely.

-Rob


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Re: [BackupPC-users] IP address

[Rob Owens]

Gary Vassalotti wrote:
 Hi all,
  
 Ok, this is not directly a backuppc problem, but I can't find an answer
 anywhere... My backuppc will not run because when it pings the other
 computers on the network it does not receive the correct ip for the
 netbios name.
  
 For example, I have one machine named 'gary' with a static ip of
 192.168.123.200 but if you ping 'gary' you get an address of
 65.xxx.xxx.xxx (it is a verizon ip address, I believe, I did not copy
 the whole address here, that is not relavant).
  
What happens if you ping the fully-qualified domain name?
ping gary.myprivatelan.net

-Rob


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Re: [BackupPC-users] backuppc URL : 404 not found

[Rob Owens]

Did you use this url:  http://localhost/backuppc

Try doing /etc/init.d/apache reload (or maybe it's /etc/init.d/apache2
reload)

-Rob

donhatem wrote:
 Hi,
 it's the first time that I install backuppc on a Debian server, everything 
 seems ok, I configure backuppc hosts file, when I use localhost or 
 localhost_IP on the navigator, it's ok, but when I would like to open 
 backuppc administration page --- error 404 not found, can you help me please
 
 +--
 |This was sent by [EMAIL PROTECTED] via Backup Central.
 |Forward SPAM to [EMAIL PROTECTED]
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Re: [BackupPC-users] Off-site backup strategies

[Rob Owens]

Kevin DeGraaf wrote:
 Hello,
 
 We have an on-site BackupPC server (2.1.2pl1) backing up 31 hosts, with 
 a total pool size of 1.8 TB.
 
 We're going to deploy an off-site backup server in a colocation 
 facility.  The colo has a great deal of bandwidth available, but our 
 office is stuck with a T1 connection (1.5 Mbps symmetric).
 
 Possible configurations:
 
1. Install BackupPC on the remote server, and do a full backup in the 
 office prior to deploying it to the colo.  From then on, perform only 
 incremental backups.
 
This is what I do, except I do perform full backups (using rsync or
rsyncd).  It works well.  Basically each machine on my lan gets backed
up twice -- once locally and once remotely.

2. Use the remote server to hold a copy of the on-site BackupPC 
 server's file pool.  The pool would be rsync'ed on-site initially and 
 then rsync'ed remotely from then on.
 
Against all advice on this list, I did this yesterday.  I rsync'd my
pool to a larger drive in the same machine.  My pool size is 347G and
it's been running for the past 15 hours or so.  I've transfered 334G so
far.  My server has 3GB of RAM.  It hasn't crashed, like many people
thought it might, and it has only used 2MB of swap.

-Rob


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Re: [BackupPC-users] possible to schedule unattended backups with backuppc?

[Rob Owens]

Juan, this is exactly what BackupPC does.  Backups can be done via ssh
and rsync, ssh and tar, rsyncd, or smb (probably not the best choice for
a unix server).

-Rob

Juan Miscaro wrote:
 I would like to use backuppc to back up some unix servers.  Is it
 possible to configure a central backuppc server to do unattended
 (automatic) backups of them?  Secondly, can an administrator log in to
 the backuppc web interface and manage those backups (view history;
 restore files to the unix server; launch on demand backup of a unix
 server)?
 
 Thank you,
 
 /juan
 
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Re: [BackupPC-users] User Permissions

[Rob Owens]

Dejan Batic wrote:
 
 Now, how can I apply chmod o+x only to folders?
 
 I want other users to be able to open folders without putting x bit to
 all the files.
 

use chmod o+X  (note the upper-case X).

This will add 'x' permissions to directories only.

-Rob



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Re: [BackupPC-users] Backup through slow line?

[Rob Owens]

Adam Goryachev wrote:
 Holger Parplies wrote:
 a) rsync full backups are only minimally more expensive than incrementals in
terms of bandwidth. Still, every file needs to be completely read from 
 disk
on both sides, so there is a good reason to offer an incremental mode as
a speedup.
 
 BTW, 2 x rsync incrementals of the same level will transfer more data
 than one full + one incremental. So for example, doing 6 incrementals
 followed by a full backup can in fact transfer a lot more data than
 doing 7 full backups.
 
 eg, if a file changes after the full backup, then each incremental
 backup will re-transfer those changes. While a full will transfer the
 changes but the following full/incremental will not re-transfer those
 changes.
 
This situation can be avoided by setting IncrLevels to 1, 2, 3, 4, 5, 6

This way each incremental is based on the previous incremental, and not
the previous full.  (Assuming you get a full backup every 7 days).

-Rob


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Re: [BackupPC-users] Full vs. Incremental

[Rob Owens]

Christian,

Here is a good post on Full vs. Incremental from a year ago.  In
particular, check out the two threads that Holger links to.

http://www.mail-archive.com/backuppc-users@lists.sourceforge.net/msg06101.html

-Rob

Christian Völker wrote:
 Yohoo!
 
 | I keep repeating this, so you might all be bored, but still:
 No, definetly not bored. For this it looks like it's too complicated :-\
 
 | When you factor pooling into the equasion, this means that the difference
 | between rsync full and incremental backups is smaller than for tar/smb
 | backups, which is yet far smaller than for tape backups for instance.
 Or, the
 | other way around, for tape backups the difference is obvious, for
 tar/smb you
 | can still see it clearly, while for rsync backups you have to look
 through a
 | microscope. But it's still the same difference, and it's still there.
 | I like that explanation! :-) IMHO it should go to the Wiki.
 
 I would prefer to have a more detailled explanation for this. As I want
 to understand what's going on it's not helpfull to compare things
 instead of giving examples.
 
 So WHAT it the difference between an rsync full and incremental backup?
 What CAN be the microscopic differences?
 Let's say I have a running Linux server which I back up through rsync
 with default settings and I already have one successful full backup.
 
 There are now two parts to look at:
 1. The backup process itself
 2. The stored backup
 
 So what are the differences now between a full and incremental one?
 
 Greetings
 
 Christian

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[BackupPC-users] show XferLog warning on Status page -- was Re: idea

[Rob Owens]

Tino Schwarze wrote:
 On Wed, Sep 03, 2008 at 02:29:53PM -0600, dan wrote:
 I have a thought here, thought id run it through the users list before
 dropping it on the devs.

 My idea was to add a small step to the backuppc process to validate that all
 files that should be transfered were transfered and automatically flag the
 backup as a partial if there is a discrepancy.

 The idea is to simply compare a list of files with some details such as
 mtime, size and filename. basically, have a post dump command to run a find
 against each share to be backed up on the remote side and on the backuppc
 side then compare the files.

 The reason for this is that I have found that backuppc can miss a file every
 now any then without an error or warning.
 
 There should be a warning in the XferLog about files which disappeared
 during the transfer.
 
This is a problem that I've noticed before.  There are sometimes
warnings in XferLog which indicate that certain files did not get backed
up, but this is not shown on the Status page as an error.  At the very
least, it would be nice to have a flag on the Status page saying look
at the XferLog!.  As it is, I have to routinely check the XferLog of
all my hosts one-by-one, which certainly isn't the quickest way of doing
things.

-Rob


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Re: [BackupPC-users] Backup through slow line?

[Rob Owens]

Adam Goryachev wrote:
 Rob Owens wrote:
 Adam Goryachev wrote:
 Holger Parplies wrote:
 a) rsync full backups are only minimally more expensive than incrementals 
 in
terms of bandwidth. Still, every file needs to be completely read from 
 disk
on both sides, so there is a good reason to offer an incremental mode 
 as
a speedup.
 BTW, 2 x rsync incrementals of the same level will transfer more data
 than one full + one incremental. So for example, doing 6 incrementals
 followed by a full backup can in fact transfer a lot more data than
 doing 7 full backups.

 eg, if a file changes after the full backup, then each incremental
 backup will re-transfer those changes. While a full will transfer the
 changes but the following full/incremental will not re-transfer those
 changes.

 This situation can be avoided by setting IncrLevels to 1, 2, 3, 4, 5, 6
 
 This way each incremental is based on the previous incremental, and not
 the previous full.  (Assuming you get a full backup every 7 days).
 
 Also assuming you use backuppc 3.0 or newer, which means it is not
 available for me as I am using debian stable packages. (Although, I hear
 the next debian stable should be out pretty soon, in which case I'll get
 the newer version then :)
 
Yes, that's what it sounds like.  It is pretty easy, though, to install
backuppc 3.0 on Etch.  Just download the package from the debian testing
repository, along with libfile-rsyncp-perl (if I remember correctly).
There aren't any other dependencies as far as I know -- but I only use
rsync as a transport, so there may be some samba stuff to download from
testing as well.

-Rob


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Re: [BackupPC-users] Backup through slow line?

[Rob Owens]

 Christian Völker wrote:
 Now I want to backup these servers. Obviously it takes more than 24
 hours to perform a full backup, so the running backup fails after 24hours.

 BackupPC now schedules the next full backupwhich runs for 24h and
 fails...and so on.
 
Try setting ClientTimeout (on the Backup Settings tab) to something
larger than the default 72000.  72000 seconds is 20 hours, which is
approximately how long you say it takes your backup to fail.

I recommend switching it back after you've got a complete full.

Of course the other option is to put the BackupPC server on the same
local network as the machines you're backing up in order to get your
first backup, and then move it off-site.

-Rob


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Re: [BackupPC-users] Backup through slow line?

[Rob Owens]

Christian Völker wrote:
 | Assume, the full backup is finished after two weeks- will the next full
 | backup take the same amount of time?
 | If you are using rsync it will be much faster next time, sending only
 | the changes.
 If so, again the question what is then the difference between a full
 rsync backup and an incremental one? I think I'll have to read the docs
 again to understand this...tried already several times, didn't succesed ;-)
 
With rsync, the difference between a full and incremental has more to do
with processor and disk activity than with bandwidth.  Both use about
the same bandwidth.  If you ask me, it doesn't make sense to call them
full and incremental, but I guess those terms are holdovers from the
days when BackupPC didn't offer rsync as a transport.

-Rob


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Re: [BackupPC-users] Hosted customer backups

[Rob Owens]

Adam Goryachev wrote:
 Oh, and I would be interested in hearing whether people are using
 backuppc for the basis of a commercial service, and/or what
 customisation they did to it. Especially how they deal with backing up
 windows systems behind a firewall...

I've been thinking about this, and I think it might end up being cost
effective to install 1 machine at the client's location to handle the
firewall issue.  That machine could simply run an ssh server and then
the remote BackupPC machine could use it as the way through the
firewall, using ssh port forwarding.  Or a full-blown VPN could be set
up using that machine.

Of course, having a Linux machine at the client's location opens up more
possibilities.  It could serve as a local backup server, running
BackupPC.  And/or it could be configured as a file server.  These
options turn the machine into a revenue generator for the provider, in
addition to making remote backups more convenient to perform.

-Rob


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Re: [BackupPC-users] Chinese Characters Breaking backups

[Rob Owens]

Maybe this is the issue:
http://www.mail-archive.com/backuppc-users@lists.sourceforge.net/msg07798.html

-Rob

[EMAIL PROTECTED] wrote:
 
 Hi Everyone, we are running BackupPC 3.1.0 in our Shanghai office and
 for every backup we are receiving the following type of error  
 
 Remote[2]: file has vanished:  S/system32/D:/Filesystem/profiles/User
 Name/tool materials/??.xls  
 
 The file has not actually vanished as the server is never turned off,
 after checking the file it contains Chinese characters in its name which
 i believe is causing the errors.
 
 Our BackupPC server is running on FreeBSD 7.0 and we are backing up from
 a Windows Server 2003 machine using rsync.  Is there anyway make
 BackupPC compatible with Chinese characters? Or is my problem something
 different entirely?
 
 Jason Hendry
 
 http://www.mintel.com
 providing insight + impact
 
 PS Discover and develop genuinely new ideas first with Mintel Inspire -
 your global trends resource.
 
 Preview our Trendscape and get on the fast track to productive ideation.
 http://www.mintel.com/inspire/
 
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 Mintel International Group Ltd (Mintel)
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 Tel: 020 7606 4533
 Fax: 020 7606 5932
 
 
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 Tel: 312 932 0400
 Fax: 312 932 0469
 
 Notice
 
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 No Mintel staff are authorised to make purchases using
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Re: [BackupPC-users] Windows Vista rsync

[Rob Owens]

I see a syntax error, but I don't know if that would cause your problem. 
  you have list - false instead of list = false

Mark Maciolek wrote:
 hi,
 
 Having issue with rsync on Vista to use BackupPC.
 
 from rsyncd.conf
 [cDrive]
path= c:/Users
auth users = mlm
secrets file  = c:/rsyncd/rsyncd.secrets
strict modes = false
read only = false
list - false
 
  From log file:
 
 2008-08-06 15:28:09 Got fatal error during xfer (Unknown module 'cDrive')
 2008-08-06 15:28:14 Backup aborted (Unknown module 'cDrive')
 
 
 rsync version 2.6.8 protocol version 29
 
 Any one have suggestions on what could be wrong?
 
 Mark
 


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Re: [BackupPC-users] Windows Vista rsync

[Rob Owens]

Strange.  I use the rsyncd/cygwin dll package from the BackupPC website 
and I can use paths like c:\Users just fine.  Oh well.  Glad you got it 
working.

-Rob

Mark Maciolek wrote:
 hi,
 
 That was it I changed the path line to the suggested below and it is now 
 working.
 
 Thank you.
 
 Mark
 
 Alexandre - ArchivTech wrote:
 Which version of rsync are you using ? :D

 i only know one using cygwin dll, then, path looks like :
 path = /cygdrive/c

 Then for you may look like :

 path = /cygdrive/c/Users

 Hope this helps.
 -  Alexandre BLANC
 Responsable SI - Ingénierie systèmes et réseaux
 IT Manager - Information Systems Network Manager
 Archiv'Tech
 [EMAIL PROTECTED]
 Mob : 06 72 133 811


 Le jeudi 07 août 2008 à 11:00 -0400, Rob Owens a écrit :
 Can you try copying the conf file to a Windows XP machine?  That way 
 we'll know if the problem is the OS or the conf file.

 Mark Maciolek wrote:
 hi,

 That was a typo in the email in the config file it is =

 Mark

 Rob Owens wrote:
 I see a syntax error, but I don't know if that would cause your 
 problem.  you have list - false instead of list = false

 Mark Maciolek wrote:
 hi,

 Having issue with rsync on Vista to use BackupPC.

 from rsyncd.conf
 [cDrive]
path= c:/Users
auth users = mlm
secrets file  = c:/rsyncd/rsyncd.secrets
strict modes = false
read only = false
list - false

  From log file:

 2008-08-06 15:28:09 Got fatal error during xfer (Unknown module 
 'cDrive')
 2008-08-06 15:28:14 Backup aborted (Unknown module 'cDrive')


 rsync version 2.6.8 protocol version 29

 Any one have suggestions on what could be wrong?

 Mark

 

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Re: [BackupPC-users] Just to make sure: How to move/copy /var/lib/backuppc to another place (RAID1)

[Rob Owens]

Holger Parplies wrote:
 Your best options remain to either do a block level copy of the file system
 (dd) or to start over. 

One suggestion I've heard on this list before, which may be a good one 
for you, is to simply start over with a new pool but save the existing 
pool for a few weeks/months/years.  Then if you never need to restore a 
backup from the old pool, you will have saved yourself a lot of effort.

-Rob


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[BackupPC-users] DumpPreUserCmd vs DumpPreShareCmd

[Rob Owens]

I'm not sure what the difference is between these two options, and I 
can't find it in the docs.  Could someone enlighten me?

-Rob


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Re: [BackupPC-users] migrated backuppc server from linux-solaris Size/MB=0

[Rob Owens]

I had that problem once and I think it came down to a permissions issue. 
   I can't remember the exact fix, but you could try temporarily 
changing everything to 777 permisions in order to test out my theory 
(just make sure that you make note of the existing permissions, so you 
can set them back after testing).

-Rob

Rob Terhaar wrote:
 Hi All,
 I recently migrated backuppc from linux/redhat to opensolaris.
 Everything seems to be working correctly, except the size/mb is blank
 in the compression summary (see the attached screenshot, after
 backup). The backups are running, I am able to restore files.
 
 Does anyone have an idea as to why this file size count is coming up empty?
 
 
 
 
 
 
 
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Re: [BackupPC-users] DumpPreUserCmd vs DumpPreShareCmd

[Rob Owens]

Holger Parplies wrote:
 Hi,
 
 Rob Owens wrote on 2008-08-04 10:45:07 -0400 [[BackupPC-users] DumpPreUserCmd 
 vs DumpPreShareCmd]:
 I'm not sure what the difference is between these two options, and I 
 can't find it in the docs.  Could someone enlighten me?
 
 DumpPreUserCmd is run once before the backup.
 DumpPreShareCmd is run before each share.
 
 In case it's not obvious, DumpPreUserCmd is run before the DumpPreShareCmd for
 the first share.
 
Thanks very much, Holger.

-Rob


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Re: [BackupPC-users] Fatal error (bad version): OpenSSH_5.0p1

[Rob Owens]

There was a Debian/Ubuntu bug in ssh a few months back.  Update your ssh 
server and client software and then try again to see if you get the same 
error.  Note that the update will recreate your server keys, and you'll 
need to create new public/private keypairs for your users (backuppc 
user, in particular).

-Rob

brunal wrote:
 Hi all,
 
 I'm using backuppc on a Dlink DNS-323 with fun_plug.
 
 Everything is fine but when I try to launch a (full and first) backup  
 I get this error :
 [Code]
 full backup started for directory /home/racine/archives
 Running: /ffp/bin/ssh -v -x -l root 192.168.1.2 /ffp/bin/rsync -v -- 
 server --sender --numeric-ids --perms --owner --group -D --links -- 
 hard-links --times --block-size=2048 --recursive --ignore-times . / 
 home/racine/archives/
 Xfer PIDs are now 624
 Got remote protocol 1852141647
 Fatal error (bad version): OpenSSH_5.0p1
 Sent exclude: /home/racine/rd/audio/banque2sons
 Sent exclude: /home/racine/rd/audio/loops
 ...
 Read EOF:
 Tried again: got 0 bytes
 fileListReceive() failed
 Done: 0 files, 0 bytes
 Got fatal error during xfer (fileListReceive failed)
 Backup aborted (fileListReceive failed)
 [/Code]
 
 So on linux machine I want to backup (192.168.1.2), it's a Ubuntu  
 7.04, and the openssh package install is 4.3p2-8ubuntu1.4 . I've just  
 upgrade the server packages. It seems that ubuntu 8.04 got openssh  
 package 5.0p1, but I don't want to dist-upgrade now, because I want  
 to backup the server before upgrading (vicious cycle isn't it?)
 
 On the backup server where backuppc is running, the openssh package  
 is OpenSSH_5.0p1 .
 
 Does anyone have an idea, how I can solve this problem? The error is  
 bad version : but does it means OpenSSH_5.0p1 is the bad version or  
 is it 4.3p2-8 the bad version?
 
 What is strange is that I can ssh without problem nor error from the  
 backup server to the server to backup (192.168.1.2).
 I also can run a command like
 [Code]
 rsync -t 192.168.1.2:~/truc.txt ./tmp/
 [/Code]
 wihtout any problem, which use ssh and a public key.
 
 ???
 
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Re: [BackupPC-users] how to compare the active file system to the last backup

[Rob Owens]

Rsync has a couple of useful options:  --dry-run and --ignore-existing. 
  I'm not sure if the rsync-perl module supports those options, but if 
it did you could use those options in your restore command (combined 
with --verbose) to output a list of files that rsync would restore if 
you weren't using the --dry-run option.

Note that using --ignore-existing will cause rsync to miss any files on 
your system that were corrupted by the backup, but not completely lost. 
  Hmm, maybe --ignore-times would be more appropriate than 
--ignore-existing if you're concerned about corrupted files...

-Rob

Emilie Ann Phillips wrote:
 My system just crashed rather nastily and I would like to verify that
 fsck recovered everything properly.
 
 Is there a way to diff the mounted file system vs the latest backup
 without restoring the backup to a temporary location and doing the
 diff by hand?
 
 Emilie
 
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Re: [BackupPC-users] backuppc

[Rob Owens]

Kurt Tunkko wrote:
 Paul, Carl,
 
 thanks for the helpful answers.
 
 I see the problem restoring a windows client, but wouldn't it be 
 possible to make a bare metal restore with 3 steps:
 
 1) doing a bare-metal-restore with an image that has been created 
 without backuppc but ntfsclone. This would restore the bootloader and 
 the operating system
 
 2) booting the client with a Linux Live CD and mounting its harddrive.
 
 3) using tar (over ssh/or netcat) to write the backup from backuppc to 
 the mounted harddrive on the client.
 
I'd make sure that before you made my original image, that you had 
rsyncd installed and configured.  That way once you restore from the 
image, you should be able to use BackupPC to restore all your data -- no 
live cd needed.

-Rob


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