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[Bug 259712] establish ssh session takes 50 seconds
- From: bugzilla_noreply@xxxxxxxxxx
- Date: Tue, 3 Apr 2007 03:29:08 -0600 (MDT)
- Message-id: <20070403092908.D629B25C887@xxxxxxxxxxxxxxxxxxxxxx>
https://bugzilla.novell.com/show_bug.cgi?id=259712
------- Comment #8 from m.munnix@xxxxxxxxxxx 2007-04-03 03:29 MST -------
I investigated further with an strace on sshd.
After the dns queries to our server 10.1.11.3,
there is a multicast on address 224.0.0.251 which times out after 5 seconds
probably searching for 163-67-87.adsl-dyn.isp.belgacom.be.crb-sfs.local if I
interpret this correctly.
The man page on resolv.conf says about ndots:n
sets a threshold for the number of dots which must appear in a name given
to res_query()(see resolver(3)) before an initial absolute query will be made.
The default for n is ``1'', meaning that if there are any dots in a name,
the name will be tried first as an absolute name before any search list
elements are appended to it.
As there are 4 dots in 163-67-87.adsl-dyn.isp.belgacom.be, why does sshd try to
use the search list ? Perhaps it does not use the resolver library correctly ?
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------- Comment #8 from m.munnix@xxxxxxxxxxx 2007-04-03 03:29 MST -------
I investigated further with an strace on sshd.
After the dns queries to our server 10.1.11.3,
there is a multicast on address 224.0.0.251 which times out after 5 seconds
probably searching for 163-67-87.adsl-dyn.isp.belgacom.be.crb-sfs.local if I
interpret this correctly.
The man page on resolv.conf says about ndots:n
sets a threshold for the number of dots which must appear in a name given
to res_query()(see resolver(3)) before an initial absolute query will be made.
The default for n is ``1'', meaning that if there are any dots in a name,
the name will be tried first as an absolute name before any search list
elements are appended to it.
As there are 4 dots in 163-67-87.adsl-dyn.isp.belgacom.be, why does sshd try to
use the search list ? Perhaps it does not use the resolver library correctly ?
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