ADSM-L

Re: Antwort: Backup of DHCP-client computers

1999-09-27 03:17:31
Subject: Re: Antwort: Backup of DHCP-client computers
From: "Mauro M. TINELLI" <Mauro.TINELLI AT ST DOT COM>
Date: Mon, 27 Sep 1999 09:17:31 +0200
Andreas,

        what Ole says isn't wrong.

I have a cluster of two hp-ux which share the same password in order to
allow packages that migrate between the two hosts, to be backuped up by
the same procedure in spite of the change of the "static" ip-address
which is own by the specific host (PasswordAccess GENERATE). Well, the
two encrypted password are different! In other words the ip-address seems
to play a part in the encryption of the password, hence the DHCP may be a
problem ...

Do you keep the same hostname or also that is dynamic?

Mauro, STM

> All of aou small clients use DHCP, with no problems. The key is:
>
> After change of the IP-Adress you have to contact your ADSM-Server,
during
> this "handshake" the client transmits his IP-Address. As normaly the
change
> of the IP-Address causes a reboot of the client and during the reboot
of
> the client the scheduler is started so  the IP-Address is alway up to
date.
>
> Concerning the password what about PASSWORDACCES GENERATE in the
dsm.opt
> file?
>
> _________________________________________________
>
> Kind Regards
> Andreas Buser
>
> Tel: ++41 61 285 73 21  Fax: ++41 61 285 70 98
>
> Email: Andreas.Buser AT Basler DOT ch
>
> Address:
> Basler Versicherungsgesellschaft
> Andreas Buser
> Abt. Informatik
> Aeschengraben 21
> 4002 Basel
> Switzerland
>
>
>
>                     Ole Holm Nielsen
>                     <Ole.H.Nielsen@FYS        An:
ADSM-L AT VM.MARIST DOT EDU
>                     IK.DTU.DK>                Kopie:
>                     Gesendet von:             Thema:  Backup of
DHCP-client comp
> uters
>                     "ADSM: Dist Stor
>                     Manager"
>                     <[email protected].
>                     EDU>
>
>
>                     24.09.99 14:19
>                     Bitte antworten an
>                     "ADSM: Dist Stor
>                     Manager"
>
>
>
>
>
> We have computers whose network addresses are dynamically
> assigned through DHCP, and which we would like to become
> ADSM backup clients.  However, the dynamic IP-numbers
> seem to present a problem.
>
> The DHCP-clients (typically PCs running Linux, and using the
> "unsupported" ADSM client software) may change IP-address daily.
> Even if I assign a permanent ADSM name to the client
> (e.g., "karsten"), I find that when a new IP-address is
> used, the dsmc backup client asks for the node password
> (which the users generally don't have).  The plan is
> actually to run the ADSM in the background (using the UNIX
> crontab) where passwords cannot be used.
>
> Will I be forced to give up dynamic IP-addresses in order
> to use ADSM ?  That's not so nice when IP-numbers are
> in demand, and some portable PCs may actually be away
> for lengths of time.
>
> I guess that server-side schedules won't do any good,
> because the server would never know the IP-address of
> the client node "karsten".
>
> Does anyone have a good solution ?
>
> Ole Holm Nielsen
> Department of Physics, Technical University of Denmark,
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