FW: Winbindd timeout on unreacheable domains

ww m-pubsyssamba pubsyssamba at bbc.co.uk
Thu Feb 19 13:31:18 GMT 2004

Hi Andrew/All,

	ok I've done a snoop to see what's going on (zip password is "snoop"). Basically the timeout is caused by something repeatedly trying to contact an IP which cannot be resolved by ARP (44 failed ARP requests), you can see many failed arp lookups. I beleive the part which finally resolves the timeout is as follows,

396   0.70071 bbcwwp-sun29 -> wwdc.testlan.bbc.co.uk NBT NS Query Request for CHILD1[1c], Success
397   0.00146 -> bbcwwp-sun29 NBT NS Query Response for CHILD1[1c], Success is that a dummy address which Samba is generating after finally timing out? It's definately not a valid IP on my test network,

	thanks Andy.

-----Original Message-----
From: Andrew Bartlett [mailto:abartlet at samba.org]
Sent: 19 February 2004 11:47
To: ww m-pubsyssamba
Cc: Andrew Bartlett; samba-technical at lists.samba.org
Subject: Re: FW: Winbindd timeout on unreacheable domains

On Thu, 2004-02-19 at 22:39, ww m-pubsyssamba wrote:
> Hi Andrew,
> 	thanks for your reply, please see my comments below,

> ## My test forest has only two DC's so I don't think there's much that can go wrong in such a simple
> ## environment, (exact timeout is actually consistantly 3mins 50seconds). However I'm going to test  
> ## this in our live environment over the weekend by isolating a DC and samba server from the rest of 
> ## the network so I'll see for real how bad this will be with many trusted domains.

The thing that would benefit me most would probably be a network trace. 
(To me personally would probably be best).

What I'm trying to pin down is 'what is waiting'.  If it is LDAP
connect() calls, then we might consider using code we already have to
make the LDAP connection attempt time-out sooner - likewise, there are
configuration settings in resolv.conf, for how long a DNS query may take
to timeout.

Andrew Bartlett

Andrew Bartlett                                 abartlet at pcug.org.au
Manager, Authentication Subsystems, Samba Team  abartlet at samba.org
Student Network Administrator, Hawker College   abartlet at hawkerc.net
http://samba.org     http://build.samba.org     http://hawkerc.net
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