* Andrew Sands <[EMAIL PROTECTED]> writes:
> I've been attempting to use the script within the DNS HOW-TO to update my
> root.hints file on my local net DNS, however it doesn't appear to always
> work and I keep getting a notification within my logs of missing
> ROOT-SERVERS.
I had a similar problem to you, I think that what happens is for some
reason the 'dig' command occasionally gives you an empty root.hints
file.
This is how I get around it... (I'm on a dialup and I run dig out of
ip-up)
- cp a *working* root.hints file to root.hints.orig and
root.hints.min
- edit root.hints.min and take out most of the comments so it
becomes a much smaller file
- make dig output to root.hints.new
- once a day from cron compare the size of root.hints.new to
root.hints.min and if the new file is smaller cp
root.hints.orig to root.hints, otherwise cp root.hints.new
to root.hints.
Here's the script that I use to decide which root.hints.* file gets to
replace root.hints.
,----[ /usr/local/sbin/check-root-servers.sh ]
| #! /bin/bash
| # $Id: check-root-servers.sh,v 1.0 1999-05-03 12:58:52+10 steve Exp $
|
| # Copyright (C) 1999, 2000 Steve Youngs
|
| # Test the size of the new root.servers file against
| # the original. If the new file is more that 1k smaller
| # than the original we copy the original to root.hints.
| # Otherwise we copy the new file to root.hints.
|
| MIN=/etc/named/root.hints.min
| NEW=/etc/named/root.hints.new
| HINTS=/etc/named/root.hints
| ORIG=/etc/named/root.hints.orig
|
| sizeof() {
| ls -l $1 | tr -s " " | cut -d " " -f 5
| }
|
| if [ `sizeof $MIN` -gt `sizeof $NEW` ]; then
| cp $ORIG $HINTS
| else
| cp $NEW $HINTS
| fi
|
| if [ -f /var/run/named.pid ]; then
| ndc restart
| fi
`----
Hope that helps.
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|---<Regards, Steve Youngs>-----------[GnuPG KeyID: EFD82ED2]---|
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