www.rembo.com

setup an out-of-band rembo backup server.
Use the PXE boot extensions on a nic that has no network protocols bound
to it.
When server boots, pxe does a bootp request to the rembo server then
loads a small loader OS.
Then it checks to see if a disk image needs to be made, incremental etc,
otherwise continues booting.

You will need to do coding/scripting on your own. Not for the faint of
heart.
If you are PARANOID, you can have the server reload a base diskimage on
every boot.

Pros:
Requires no software loaded on DMZ bastion hosts.
Out-of-band solution
Fault tolerant, plus MD5's on files.
Forces proper change controls.
Cheaper than BackupExec
Disk images can be loaded from CD-ROM.

Cons:
Setup is a bitch (technical term)
Not terribly fast.
No "realtime" backups (however, in terms of "security" I would put this
in PRO's column!)
Did I mention setup is a bitch? This is not software for the typical
SHRINK WRAP Systems Engineer...

> -----Original Message-----
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED]] On Behalf Of Alvin Oga
> Sent: Wednesday, February 06, 2002 12:49 AM
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: Re: Strategy for backing up servers in DMZ?
> 
> 
> 
> hi ya roy
> 
> you dont....
> 
> never bring stuff from the outside back inside your lan
> 
> do your work/updates on a local staging server..
> and release that to the utside dmz
>       - you already have a backup of all servers on the dmz
> 
> - if the webservers create its own local db and stuff
>   on the fly... keep that backup on the second decicated dmz only
>   accessbile by that web server that needs its db
> 
> 
> c ya
> alvin
> http://www.Linux-Backup.net
> 
> 
> On Tue, 5 Feb 2002 [EMAIL PROTECTED] wrote:
> 
> > We have a need to backup servers in the DMZ.  We're using 
> Veritas BackupExec
> > 8.6 for NT/2000.  However, I'm a bit concerned about 
> running the backups
> > through the firewall (Sonicwall Pro), just because it's a 
> lot of data that
> > possibly could instead go through a separate physical 
> Ethernet network - if
> > you all bless it!?
> > 
> > Backup Exec does have the ability to utilize a separate 
> physical Ethernet
> > network/sub-net.  So long as none of the servers (LAN 
> Backup Server and DMZ
> > Web Servers) have TCP/IP forwarding enabled, would it 
> really represent a
> > security risk/vulnerability to stick another NIC in the DMZ 
> servers and the
> > Backup Server and simply back them up through the separate 
> Ethernet network
> > rather than bogging down the firewall with all packets???
> > 
> > Thanks very much!
> > 
> > Roy.
> > 
> > _______________________________________________
> > Firewalls mailing list
> > [EMAIL PROTECTED]
> > http://lists.gnac.net/mailman/listinfo/firewalls
> > 
> 
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