Backup Central

Hi,

Did you fix the $Conf{ClientNameAlias} problem, at this time only IP
address is working, we tried a real name (dynamic adresse with our Dyn
DNS) but that's don't work.

We have some customers machine in dyn IP address and we can't backup it.

Sam.





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Sam Przyswa writes:

Did you fix the $Conf{ClientNameAlias} problem, at this time only IP
address is working, we tried a real name (dynamic adresse with our Dyn
DNS) but that's don't work.

We have some customers machine in dyn IP address and we can't backup it.

$Conf{ClientNameAlias} should be able to take an IP address or
host name. BackupPC doesn't care. All it does is substitute
$Conf{ClientNameAlias} in place of $host at the last moment
before running the external backup command(s) (eg: smbclient,
tar, rsync). So it's actually an issue of what the external
backup command can accept.

Craig


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Le mar 10/08/2004 =E0 16:24, Craig Barratt a =E9crit :
Sam Przyswa writes:
=20
Did you fix the $Conf{ClientNameAlias} problem, at this time only IP
address is working, we tried a real name (dynamic adresse with our Dy=
n
DNS) but that's don't work.
=20
We have some customers machine in dyn IP address and we can't backup =
it.
=20
$Conf{ClientNameAlias} should be able to take an IP address or
host name. BackupPC doesn't care. All it does is substitute
$Conf{ClientNameAlias} in place of $host at the last moment
before running the external backup command(s) (eg: smbclient,
tar, rsync). So it's actually an issue of what the external
backup command can accept.

Ok, I put $Conf{ClientNameAlias} =3D 'mars.dyn.ac-fr.com'; and I always
got "no ping response" and "host not found" but if I make from a console
"ping mars.dyn.ac-fr.com" on my backupps machine that's work.

Try yourself.

Sam.

Le mar 10/08/2004 =E0 18:44, Sam Przyswa a =E9crit :
Le mar 10/08/2004 =E0 16:24, Craig Barratt a =E9crit :
Sam Przyswa writes:
=20
Did you fix the $Conf{ClientNameAlias} problem, at this time only I=
P
address is working, we tried a real name (dynamic adresse with our =
Dyn
DNS) but that's don't work.
=20
We have some customers machine in dyn IP address and we can't backu=
p it.
=20
$Conf{ClientNameAlias} should be able to take an IP address or
host name. BackupPC doesn't care. All it does is substitute
$Conf{ClientNameAlias} in place of $host at the last moment
before running the external backup command(s) (eg: smbclient,
tar, rsync). So it's actually an issue of what the external
backup command can accept.
=20
Ok, I put $Conf{ClientNameAlias} =3D 'mars.dyn.ac-fr.com'; and I always
got "no ping response" and "host not found" but if I make from a consol=
e
"ping mars.dyn.ac-fr.com" on my backupps machine that's work.
=20
Try yourself.

Sometime I got "2004-08-10 19:16:34 Can't find host mars.dyn.ac-fr.com
via netbios" why to try netbios to resolve the machine name and for
rsync Xfert ???

Sam.

On 08/10 06:44 , Sam Przyswa wrote:
Ok, I put $Conf{ClientNameAlias} = 'mars.dyn.ac-fr.com'; and I always
got "no ping response" and "host not found" but if I make from a console
"ping mars.dyn.ac-fr.com" on my backupps machine that's work.

have you restarted backuppc (or told it to reload its config)? it seems to
cache name lookup information; so you need to let it rebuild its 'cache' of
names.

also, have you tried running BackupPC_dump from the command line?
/path/to/BackupPC_dump -v -f hostname

so in my case I do:
/usr/share/backuppc/bin/BackupPC_dump -v -f berzerker


--
Carl Soderstrom
Systems Administrator
Real-Time Enterprises
www.real-time.com


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Le mar 10/08/2004 =E0 19:35, Carl Wilhelm Soderstrom a =E9crit :
On 08/10 06:44 , Sam Przyswa wrote:
Ok, I put $Conf{ClientNameAlias} =3D 'mars.dyn.ac-fr.com'; and I alwa=
ys
got "no ping response" and "host not found" but if I make from a cons=
ole
"ping mars.dyn.ac-fr.com" on my backupps machine that's work.
=20
have you restarted backuppc (or told it to reload its config)? it seems=
to
cache name lookup information; so you need to let it rebuild its 'cache=
' of
names.

Each time I make backuppc restart, and sometime I make a stop and start.

also, have you tried running BackupPC_dump from the command line?
/path/to/BackupPC_dump -v -f hostname

There is the result:

backuppc < at > pluton:/root$ /usr/share/BackupPC/bin/BackupPC_dump -v -f
ptb_linux
cmdSystemOrEval: about to system /bin/ping -c 1 mars.dyn.ac-fr.com
cmdSystemOrEval: finished: got output ping: unknown host
mars.dyn.ac-fr.com

CheckHostAlive: first ping failed (512, )
no ping response

But the /bin/ping -c 1 mars.dyn.ac-fr.com work fine !?

What's wrong ?

Sam.




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Le mar 10/08/2004 =E0 20:17, Sam Przyswa a =E9crit :
Le mar 10/08/2004 =E0 19:35, Carl Wilhelm Soderstrom a =E9crit :
On 08/10 06:44 , Sam Przyswa wrote:
Ok, I put $Conf{ClientNameAlias} =3D 'mars.dyn.ac-fr.com'; and I al=
ways
got "no ping response" and "host not found" but if I make from a co=
nsole
"ping mars.dyn.ac-fr.com" on my backupps machine that's work.
=20
have you restarted backuppc (or told it to reload its config)? it see=
ms to
cache name lookup information; so you need to let it rebuild its 'cac=
he' of
names.
=20
Each time I make backuppc restart, and sometime I make a stop and start=
.
=20
also, have you tried running BackupPC_dump from the command line?
/path/to/BackupPC_dump -v -f hostname
=20
There is the result:
=20
backuppc < at > pluton:/root$ /usr/share/BackupPC/bin/BackupPC_dump -v -f
ptb_linux
cmdSystemOrEval: about to system /bin/ping -c 1 mars.dyn.ac-fr.com
cmdSystemOrEval: finished: got output ping: unknown host
mars.dyn.ac-fr.com
=20
CheckHostAlive: first ping failed (512, )
no ping response
=20
But the /bin/ping -c 1 mars.dyn.ac-fr.com work fine !?
=20
What's wrong ?

I noticed after the command "/usr/share/BackupPC/bin/BackupPC_dump -v -f
hostname" the command "dig mars.dyn.ac-fr.com" don't work anymore, the
resolver go down.

Please help !

Sam.
=20



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On 08/10 11:09 , Sam Przyswa wrote:
I noticed after the command "/usr/share/BackupPC/bin/BackupPC_dump -v -f
hostname" the command "dig mars.dyn.ac-fr.com" don't work anymore, the
resolver go down.

if the host itself can't resolve the name; you have problems outside of
BackupPC. BackupPC doesn't affect anything on the system itself; so I
think you have more endemic problems.

--
Carl Soderstrom
Systems Administrator
Real-Time Enterprises
www.real-time.com


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Le mar 10/08/2004 =E0 23:14, Carl Wilhelm Soderstrom a =E9crit :
On 08/10 11:09 , Sam Przyswa wrote:
I noticed after the command "/usr/share/BackupPC/bin/BackupPC_dump -v=
-f
hostname" the command "dig mars.dyn.ac-fr.com" don't work anymore, th=
e
resolver go down.
=20
if the host itself can't resolve the name; you have problems outside of
BackupPC. BackupPC doesn't affect anything on the system itself; so =
I
think you have more endemic problems.

Argh... so I will add a nameserver in my resolve.conf outside of my LAN.

Thanks for your halp.

Sam.




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Le mar 10/08/2004 =E0 23:14, Carl Wilhelm Soderstrom a =E9crit :
On 08/10 11:09 , Sam Przyswa wrote:
I noticed after the command "/usr/share/BackupPC/bin/BackupPC_dump -v=
-f
hostname" the command "dig mars.dyn.ac-fr.com" don't work anymore, th=
e
resolver go down.
=20
if the host itself can't resolve the name; you have problems outside of
BackupPC. BackupPC doesn't affect anything on the system itself; so =
I
think you have more endemic problems.

The problem is very strange, my BackupPC machine is on a LAN behind a
Firewall/ADSL Gateway/DNS as 172.16.0.20.

On my BackupPC machine my resolve.conf have "nameserver 172.16.0.20" and
my machine work fine since over 3 years, I ping, ssh, apt-get, dig, all
reachable machines on Internet...

As soon I launch "/usr/share/BackupPC/bin/BackupPC_dump -v -f
mars.dyn.ac-fr.com" :

cmdSystemOrEval: about to system /bin/ping -c 1 mars.dyn.ac-fr.com
cmdSystemOrEval: finished: got output ping: unknown host
mars.dyn.ac-fr.com

Then I can't resolve any hostname anymore, "dig mars.dyn.ac-fr.com"
return nothing. The only thing that's fix is to ADD a public nameserver
outside my LAN in to resolve.conf on my BackupPC machine. Then
everything works fine.

I'm not sure that this problem is 100% endemic and I think BackupPC or
Perl have something to deal with but I don't know what.

I think you have to look this problem (BackupPC developers) I'm sure
other users will have the same problem someday.

I hope this help...

Thanks to Carl and all others on this list.

Sam.




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On 08/11 08:54 , Sam Przyswa wrote:
On my BackupPC machine my resolve.conf have "nameserver 172.16.0.20" and
my machine work fine since over 3 years, I ping, ssh, apt-get, dig, all
reachable machines on Internet...

I presume you also have a nameserver on this machine?

As soon I launch "/usr/share/BackupPC/bin/BackupPC_dump -v -f
mars.dyn.ac-fr.com" :

cmdSystemOrEval: about to system /bin/ping -c 1 mars.dyn.ac-fr.com
cmdSystemOrEval: finished: got output ping: unknown host
mars.dyn.ac-fr.com

Then I can't resolve any hostname anymore, "dig mars.dyn.ac-fr.com"
return nothing. The only thing that's fix is to ADD a public nameserver
outside my LAN in to resolve.conf on my BackupPC machine. Then
everything works fine.

does the nameserver on your machine throw any errors at this point? (check
/var/log/messages or whatever your central logfile is)

if you leave that outside nameserver in your resolv.conf; does backuppc work
afterwards? I presume not; but do you get a different error message?



--
Carl Soderstrom
Systems Administrator
Real-Time Enterprises
www.real-time.com


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On Wed, 2004-08-11 at 13:54, Sam Przyswa wrote:

The problem is very strange, my BackupPC machine is on a LAN behind a
Firewall/ADSL Gateway/DNS as 172.16.0.20.

....
Then I can't resolve any hostname anymore, "dig mars.dyn.ac-fr.com"
return nothing. The only thing that's fix is to ADD a public nameserver
outside my LAN in to resolve.conf on my BackupPC machine. Then
everything works fine.

dig < at > 172.16.0.20
should tell you if the nameserver there is working or not. If it
isn't your backup box probably doesn't have anything to do
with the issue.

---
Les Mikesell
les < at > futuresource.com



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Le mer 11/08/2004 =E0 21:50, Les Mikesell a =E9crit :
On Wed, 2004-08-11 at 13:54, Sam Przyswa wrote:
=20
The problem is very strange, my BackupPC machine is on a LAN behind a
Firewall/ADSL Gateway/DNS as 172.16.0.20.
=20
....
Then I can't resolve any hostname anymore, "dig mars.dyn.ac-fr.com"
return nothing. The only thing that's fix is to ADD a public nameserv=
er
outside my LAN in to resolve.conf on my BackupPC machine. Then
everything works fine.
=20
dig < at > 172.16.0.20
should tell you if the nameserver there is working or not. If it
isn't your backup box probably doesn't have anything to do
with the issue.

For sure it work as since 3 years !

But, as I said as soon as the BackupPC_dump run it stop to work !?

Sam.




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Le mer 11/08/2004 =E0 21:11, Carl Wilhelm Soderstrom a =E9crit :
On 08/11 08:54 , Sam Przyswa wrote:
On my BackupPC machine my resolve.conf have "nameserver 172.16.0.20" =
and
my machine work fine since over 3 years, I ping, ssh, apt-get, dig, a=
ll
reachable machines on Internet...
=20
I presume you also have a nameserver on this machine?

No DNS on this machine, I use our DNS on the Firewall/Gateway.

As soon I launch "/usr/share/BackupPC/bin/BackupPC_dump -v -f
mars.dyn.ac-fr.com" :
=20
cmdSystemOrEval: about to system /bin/ping -c 1 mars.dyn.ac-fr.com
cmdSystemOrEval: finished: got output ping: unknown host
mars.dyn.ac-fr.com
=20
Then I can't resolve any hostname anymore, "dig mars.dyn.ac-fr.com"
return nothing. The only thing that's fix is to ADD a public nameserv=
er
outside my LAN in to resolve.conf on my BackupPC machine. Then
everything works fine.
=20
does the nameserver on your machine throw any errors at this point? (ch=
eck
/var/log/messages or whatever your central logfile is)
=20
if you leave that outside nameserver in your resolv.conf; does backuppc=
work
afterwards? I presume not; but do you get a different error message?

Yes, at this time I have 2 nameserver in the resolv.conf our local one
and an external and BackupPC work fine even for mars.dyn.ac-fr.com

Sam.




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On Wed, 2004-08-11 at 17:32, Sam Przyswa wrote:

dig < at > 172.16.0.20
should tell you if the nameserver there is working or not. If it
isn't your backup box probably doesn't have anything to do
with the issue.

For sure it work as since 3 years !

If it doesn't answer the dig request it's broken now. Do you
have any administrative access to restart or debug it?

But, as I said as soon as the BackupPC_dump run it stop to work !?

Things break all the time - that was as good a time as any...

---
Les Mikesell
les < at > futuresource.com




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