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Re: How to backup/restore on remote servers

Hi J. Bakshi, thanks for replying.

I followed your suggestion:

1. Stop the LDAP/Samba service.
2. TAR the /var/lib/ldap and copy to another machine
3. Turn off the first server
4. Turn on the second server (identical network, IP, configuration - it's a VM clone)
5. mv /var/lib/ldap /var/lib/ldap-bak
6. Untar the /var/lib/ldap
7. I certified that user/permissions were identical (openldap:openldap)
7. Turn the samba/ldap server on.

When I try to access the users via web interface (ebox), I got a complete machine halt :((
Even tty stopped to work.

PS: I did not copy the slapd.conf because they were identical.

Probably some configuration is missing.
Does somebody have any glue on how to copy an entire LDAP database/configuration ?

Thanks in advance,
Josir Gomes

Josir Gomes wrote:
Hi folks,

I just installed a openldap server and I want to test backup/restore

I have two machines, one is a clone of the second one.The first one I
add several users and then my test is to restore those users in the
new machine.

To backup, it was easy:

slapcat -l /path/to/your/backup.ldif

But when I tried to restore,

I shutdown the samba/ldap service with:

/etc/init.d/ebox samba stop
/etc/init.d/ebox slapd stop

And then I issue: slapadd -l /path/to/your/backup.ldif

=> hdb_tool_entry_put: id2entry_add failed: DB_KEYEXIST: Key/data pair
already exists (-30996)
=> hdb_tool_entry_put: txn_aborted! DB_KEYEXIST: Key/data pair already
exists (-30996)
slapadd: could not add entry dn="dc=ebox" (line=1): txn_aborted!
DB_KEYEXIST: Key/data pair already exists (-30996)

I understand that there are other records and I can't replace them.

Do I have to erase everything ?
Or is there a merge option ?

I know that there is a replication service but those two servers will
not be on the same network (ie. one server will not communicate with the
other) so I think this approach does not apply.

Any tip or suggestion will be very welcome.

Thanks in advance,
Josir Gomes


All time favorite  question.
By any-chance will it work  if I rsync  slapd.conf;  ldap.conf  and
the   /var/lib/ldap   from the remote server  to a local folder and
restore it when required ?
Very curious to know the actual backup process.