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  I backup 7 local systems with Amanda.

  Three Linux boxes (1 Debian/i386, 1 RH/i386, 1 RH/Netwinder), and 
four NetBSD/i386 boxes. There is a NetBSD/ipf firewall between the backup
server (NetBSD/i386) and some of the boxes. Some of the backups also occur
over IPsec (yes, even though they are all "local").

  Two boxes on the same wire as backup server (plus the server itself) 
work flawlessly. The IPsec connected ones work fine.

  The three behind the firewall fail frequently, but not 100% of the time.
I setup backups for just those hosts, and watch with tcpdump. I've built with 
the appropriate port ranges, but I never seen firewall failures, yet I get
failures. 

  Coincidentally, the machines that fail are all less than 300Mhz systems,
(233Mhz, 350Mhz, 200Mhz), while the machines that work are 650Mhz+. The
backup server itself, however is a K5-133 running NetBSD/i386, and a lot of
SCSI spindles. (Yeah, it needs to be replaced) 

  The 233Mhz box used to be a P75. It was upgraded in January, and the first
backup right after the upgraded worked, but then failed after that.

  These failing boxes have between 2Gb and 6Gb - not huge amounts by today's
standards. (The working boxes have 12Gb through 100Gb of storage...)

  My impression is that the failures are because the backup time estimates 
take too long and the backup server gives up on them. One the clients, I
don't see any errors in the /tmp/amanda output - it looks normal to me.

  I've been through the documentation and the FAQs, and I've watched
tcpdump's of the traffic going through... nothing obvious.

  Is there some additional detail on the server that I might find?

  Is there some way to run the server with additional debugging on,
particularly relating to port 10080 transactions?

]       ON HUMILITY: to err is human. To moo, bovine.           |  firewalls  [
]   Michael Richardson, Sandelman Software Works, Ottawa, ON    |net architect[
] [EMAIL PROTECTED] http://www.sandelman.ottawa.on.ca/ |device driver[
] panic("Just another NetBSD/notebook using, kernel hacking, security guy");  [


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