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Date:      Tue, 23 Feb 1999 07:16:51 -0700
From:      "Chris D. Faehl" <cfaehl@cs.unm.edu>
To:        Rahul Dhesi <dhesi@rahul.net>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: FYI: Don't let SunOS clients bind to FreeBSD NIS servers 
Message-ID:  <E10FIdq-0005pk-00@sloth.cs.unm.edu>
In-Reply-To: Message from Rahul Dhesi <dhesi@rahul.net>  of "Tue, 23 Feb 1999 05:37:09 PST." <199902231337.AA17100@bolero-x.rahul.net> 

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> The standard gethostby*() library functions in SunOS do all host name
> resolutions via NIS queries.
> 
> When started with the -n option to enable DNS resolution, the FreeBSD
> ypserv(1) process does DNS resolutions, but *VERY* slowly.  This
> absolutely kills performance on Suns, if you have a Sun client bound to
> a FreeBSD NIS server.  Observed with SunOS 4.1.3_U1 and FreeBSD 3.1-RELEASE.
> 
> Solution:  Don't let Sun clients bind to FreeBSD NIS servers.  This can
> be achieved by using a /var/yp/securenets file.

Solution: the suns are broken. Known problem. Update your resolver libraries
on the sun clients so that they perform proper DNS. Should be able to find
instructions in a Sun FAQ somewhere (sorry, no URL on hand). It's a hack
that FreeBSD had the unusual courtesy to provide Sun boxes. Let's don't
foster this kind of nefarious client behavior...



> 
> Rahul
> 
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-stable" in the body of the message
> 


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Chris Faehl			      | Email: cfaehl@cs.unm.edu
The University of New Mexico          | URL:   http://www.cs.unm.edu/~cfaehl
Computer Science Dept., Rm. FEC 313   | Phone: 505/277-3016
Albuquerque, NM  87131  USA           | FAX:   505/277-6927
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